JLG 1250AJP Programming manual

Troubleshooting Manual
Model
1250AJP
3128411
April 5, 2007
?

INTRODUCTION
3128411 1250AJP A-3
SECTION A. INTRODUCTION
A.1 HOW TO USE THIS MANUAL
Troubleshooting system problems can be difficult. System wiring and hydraulic diagrams are provided in this book to help
isolate problems.
Follow the flow chart of Figure A-1. Troubleshooting Flowchart on Pg. 3. Only perform calibrations when indicated in proce-
dures or in section 5.1 Calibration Instructions on Pg. 289.
Each troubleshooting step setup is specified in the step instructions and applies only to that step. Any special wiring, dis-
connected connectors, programming modes, etc. should be removed, re-connected, restored, etc. after completing
the step unless directed otherwise. Some procedures call for swapping components, connections, etc. All instructions to
repair refer to the machine as assembled before the procedure started. Reinstall to proper locations all swapped compo-
nents, connections before repairing machine.
When a function will not operate with the same speed or power as a machine in good working condition, refer to the topic
which most closely describes the problem.
Conclude each session by rerunning the system test, checking for other problems.
If this method does not identify the problem, contact the factory for assistance.
Figure A-1. Troubleshooting Flowchart
Is Distress
Lamp Blinking?
Plug in Analyzer
and read Help
Message
No Yes
Start
Troubleshoot by
Help Message in
Section 1
Problem
Solved?
No
Yes
Identify Fault
Repair Machine
Done
Using Analyzer,
find logged Help
Messages
“Ground/
Everything OK”
Using Analyzer,
Run Platform and
Ground System
Tests
Yes
No

INTRODUCTION
A-4 1250AJP 3128411
A.2 VISUAL INSPECTION
Perform a thorough visual and “hands on” inspection before starting any troubleshooting procedure. Also, perform a visual
inspection at every connector, sensor, hose, harness, etc. opened or accessed during the procedure. You can quickly find
the cause of many problems just by looking.
Has the machine been serviced recently? Check that everything has been reconnected properly.
Inspect Hoses for:
• Correct routing
• Pinches and kinks
• Splits, cuts, or breaks.
Inspect Wiring for:
• Contact with sharp edges
• Contact with hot surfaces
• Pinched, burned or chafed insulation
• Proper routing and connections
Check Sensors and Actuators for Damage.
Check Electrical Connectors for:
• Corrosion on pins
• Moisture in the housing or on the contacts
• Bent or damaged pins
• Contacts not properly seated in housing
• Bad wire crimps to terminals
A.3 READING FAULT CODES
Current and logged system fault codes and ADE service flash codes can be read from the analyzer. Refer to 4.2 Using the
Analyzer on Pg. 261. Fault logs are separated by POWER CYCLE messages. In Troubleshooting, you may be asked to see
all of the currently active faults. This simply means all of the faults since the latest power cycle. Scroll through the chronolog-
ical faults on the analyzer, listing all the faults until the first “POWER CYCLE” message. Troubleshoot each of these items
separately unless instructed otherwise.
ADE service flash codes can also be read from the green LED on the face of the ground module or the system distress lamp
in the platform console, see Figure A-2. Ground Module and Platform Fault (System Distress) Lights on Pg. 4. Use the table
in A.8 Service Fault Code Cross References on Pg. 9 to find possible faults based on the flashed code.
Figure A-2. Ground Module and Platform Fault (System Distress) Lights
1705744 A
1705745 B
1702938
1705170A
1705171A
J1 J4
J2 J3
FAULT
CODE
LIGHT

INTRODUCTION
3128411 1250AJP A-5
A.4 CONNECTOR REFERENCES
Electrical connectors are given a three digit identifier number preceded with “X”. See 2.1 Connector Index on Pg. 209 for a
list.
For Example:
[X006.21] refers to terminal 21 (pin and socket) of connector X006.
[X006.21.soc] refers to the socket side of terminal 21, connector X006.
[X006.21.pin] refers to the pin side of terminal 21, connector X006.
A.5 GROUND REFERENCE
Battery negative [X117] should be used as the ground reference for voltage measurements, unless stated otherwise.

INTRODUCTION
A-6 1250AJP 3128411
A.6 CONTROL MODULE POWER
Always make sure that all of the control models are properly powered. See Figure A-3. Basic Electronic Module Connections
on Pg. 6
1. For Ground Module operation, Terminals [X001.24], and [X008.2] should have a voltage of Vbatt. Terminal [X008.1]
should be grounded.
2. CAN communication wires should have 60Ωresistance between CAN HI and CAN LO whenever both the Platform
Module and Chassis Module are connected or 120Ωwhen one of them are disconnected. Both CAN HI and CAN LO
should be isolated (show very high resistance or overload, OL) from the shield and ground. A CAN termination 120Ω
resistor is located at both ends of the CAN bus. One is embedded in the platform module. The other terminator is jum-
pered in the chassis module.
Figure A-3. Basic Electronic Module Connections
Chassis Power
Relay
X266
Platform
Module
Ground Module
CAN Shield
CAN HI
CAN LO
Platform Ground
Platform Power
Ground from B-
Vbatt from Power
Down Relay
13
14
3
2
4
1
3
X007
X008
X001
Analyzer Power
Analyzer RS232 Receive
Analyzer RS232 Transmit
Analyzer Ground Analyzer
28
29
30
31
CAN HI
CAN LO
31
30
X169
Constant Battery (Vbatt)
24
120Ω
X170
2
1
BLAM Module
CAN HI
CAN LO 6
7
X086
8
CAN Shield
X090
Analyzer Power
Analyzer RS232 Receive
Analyzer RS232 Transmit
Analyzer Ground
Analyzer 9
10
11
12
X089
1
2
3
4
5
CAN HI
CAN LO
CAN Shield
Load Pin
MainLift
PVG
Tower
Tele
PVG
Tower
Lift PVG
ABDE
123412341234
Chassis
Module
CAN HI
CAN LO
6
7
X229
8
CANShield
X233
Analyzer Power
Analyzer RS232Receive
Analyzer RS232 Transmit
Analyzer Ground
Analyzer
9
10
11
12
120Ω
3
X002 8
11
Tower Tele PVG Power
Main Lift PVG Power
Tower Lift PVG Power
X066 X067 X065 X062
Main
Boom
Angle #1
1234
X048
5
Main
Boom
Angle #2
1234
X049
5
32
10
21
Vbatt from Ground Module X008.4
Ground from Ground Module X008.3
5
4
Ignition Power
5
4
Chassis Power
J1
J5
J8
J2
J7 J1
J1
J5
J4
J7
J8
Note: BLAMand Chassis Module Analyzer connections for download only
9
10
CAN Jumper
Vbatt from EMS
Platform Mode Select
2
1
Vbatt fromEMS
Mode Select from Ground Module X007.14
24
18
Main Angle #1 Power
Main Angle #2 Power
Engine
Module
X240
12
13
X060
12345
X014
X043
X045
X044
X042 X050 X160
X262
X083
123
123
JK
J
K
1
2
3
1
2
3
1
2
3
A
B
C
X058
10
11
12
X091
X013
X235
Analyzer
X171
X166
J2 26
28
29
27
X216
123
CBA
CBA A
B
C
X269
X270
45
Ground
45
12 16
16
12 16 12 16 12
87
30
Constant Battery (Vbatt)
86
Ignition Power
85
Battery +
Battery -
CAN HI
CAN LO
X268
A
B
C
X084
ABC
X263
21
X267
X058
3
2
X097
E
E
Ignition Power 14
1
Ground from Ground Module X001.8
8Ground to Engine Module X240.1

INTRODUCTION
3128411 1250AJP A-7
A.7 CRITICAL SENSORS
Tower Angle Sensors
Tower Boom Angle Sensor #1 (Right) [X099]
Tower Boom Angle Sensor #2 (Left) [X100]
ANALYZER ⇒ACCESS LEVEL 1 ⇒DIAGNOSTICS ⇒BOOM SENSORS ⇒TOWER ANGLE 1 A/D: XXXXX
ANALYZER ⇒ACCESS LEVEL 1 ⇒DIAGNOSTICS ⇒BOOM SENSORS ⇒TOWER ANGLE 2 A/D: XXXXX
Digital Inclinometers measure the angle of the tower boom with respect to gravity. The sensors are mounted such that they
generate opposite signals with respect to boom movement. Clockwise rotation of the sensor (looking at the cover) will pro-
duce a signal of increased angle. The tower angle sensors communicate with the BLAM module using serial communica-
tions. There should be 12 volts between X099.1 and X099.3 on the right sensor and 12 volts between X100.1 and X100.3 on
the left sensor. In transport position TOWER ANGLE 1 A/D and TOWER ANGLE 2 A/D are typically between -26 and -35.
Tower Cylinder Angle Sensor
Tower Lift Cylinder Pivot Pin Angle Sensor [X092]
5V between [X092.A] and [X092.C]
ANALYZER ⇒DIAGNOSTICS ⇒BOOM SENSORS ⇒TOWER CYLINDER ANGLE: XX.X
In transport position, the sensor value should be at 5.9 degrees or less
ANALYZER ⇒ACCESS LEVEL 1 ⇒DIAGNOSTICS ⇒BOOM SENSORS ⇒TOWER CYLINDER ANGLE A/D: XXXXX
In transport position, the A/D value should be 4721 - 11385
Fully lifted, the A/D value should be 22871 - 29535
A hall effect analog potentiometer that measures the angle of the tower boom cylinder with respect to the turntable. The sen-
sor’s analog output is read by the BLAM module. The sensor is powered by a 5 volt reference and ground from the BLAM
module.
Main Angle Sensors
Main Boom Rotary Angle Sensor #1 (Right) [X048]
Main Boom Rotary Angle Sensor #2 (Left) [X049]
Measure the angle of the main boom with respect to the tower boom. Power is supplied by the Ground Module so the sen-
sors can be turned on separately at startup for identification and diagnostic purposes. Once initialized, a constant 12 volts
should be supplied by the Ground Module. Main Angle Sensor #1, [X048.2] is powered by [X002.10]. Main Angle Sensor
#2, [X049.2] is powered by [X002.21]. These sensors communicate with the system on the CAN bus.
ANALYZER ⇒ACCESS LEVEL 1 ⇒DIAGNOSTICS ⇒BOOM SENSORS ⇒MAIN LIFT 1 ANGLE A/D: XXXXX
ANALYZER ⇒ACCESS LEVEL 1 ⇒DIAGNOSTICS ⇒BOOM SENSORS ⇒MAIN LIFT 2 ANGLE A/D: XXXXX
ANALYZER ⇒ACCESS LEVEL 1 ⇒DIAGNOSTICS ⇒BOOM SENSORS ⇒MAIN LIFT 1 RAW ANGLE A/D: XXXXX
ANALYZER ⇒ACCESS LEVEL 1 ⇒DIAGNOSTICS ⇒BOOM SENSORS ⇒MAIN LIFT 2 RAW ANGLE A/D: XXXXX
In transport position typical values are:
MAIN LIFT 1 ANGLE A/D: 2800 - 6000
MAIN LIFT 2 ANGLE A/D: 26000 - 30010
MAIN LIFT 1 RAW ANGLE A/D: 15 - 33
MAIN LIFT 2 RAW ANGLE A/D: 145 - 165

INTRODUCTION
A-8 1250AJP 3128411
Tower Length Sensors
Tower Boom Length Sensor #1 (Top Right) [X093]
Tower Boom Length Sensor #2 (Bottom Left) [X094]
ANALYZER ⇒DIAGNOSTICS ⇒BOOM SENSORS ⇒TOWER LENGTH 1 SENSOR: X.X"
ANALYZER ⇒DIAGNOSTICS ⇒BOOM SENSORS ⇒TOWER LENGTH 2 SENSOR: X.X"
ANALYZER ⇒ACCESS LEVEL 1 ⇒DIAGNOSTICS ⇒BOOM SENSORS ⇒TOWER LENGTH 1 A/D: XXXXX
ANALYZER ⇒ACCESS LEVEL 1 ⇒DIAGNOSTICS ⇒BOOM SENSORS ⇒TOWER LENGTH 2 A/D: XXXXX
Cable potentiometers that measure the total stroke of the tower boom. The sensors’ analog outputs are read by the BLAM
module. Both increase as the boom length increases. Each sensor is powered by a 5 volt reference and ground from the
BLAM module. Each sensor should measure 5k Ωresistance between the A and B pins.
In transport position typical values are:
TOWER LENGTH 1 SENSOR: 305.4"
TOWER LENGTH 2 SENSOR: 305.4"
TOWER LENGTH 1 A/D: 880
TOWER LENGTH 2 A/D: 1180

INTRODUCTION
3128411 1250AJP A-9
A.8 SERVICE FAULT CODE CROSS REFERENCES
CODE - MESSAGE PAGE NO.
0
0-0 CHASSIS TILT SENSOR OUT OF RANGE ....................................................................................................... 1-62
0-0 ENVELOPE ENCROACHED - HYDRAULICS SUSPENDED ............................................................................ 1-73
0-0 EVERYTHING OK ............................................................................................................................................. 1-73
0-0 FSW OPEN ....................................................................................................................................................... 1-86
0-0 LOAD SENSOR READING UNDER WEIGHT ................................................................................................... 1-96
0-0 MAIN ENVELOPE ENCROACHED - HYDRAULICS SUSPENDED .................................................................. 1-109
0-0 RUNNING AT CREEP - TILTED AND ABOVE ELEVATION ..............................................................................1-140
0-0 RUNNING AT CUTBACK - OUT OF TRANSPORT POSITION ......................................................................... 1-141
0-0 TOWER ENVELOPE ENCROACHED - HYDRAULICS SUSPENDED .............................................................. 1-144
2-?
2-1 FSW FAULTY .................................................................................................................................................... 1-85
2-1 KEYSWITCH FAULTY ....................................................................................................................................... 1-92
2-2 D/S JOY. CENTER TAP BAD ............................................................................................................................ 1-64
2-2 D/S JOY. OUT OF RANGE HIGH ..................................................................................................................... 1-64
2-2 D/S JOY. OUT OF RANGE LOW ...................................................................................................................... 1-64
2-2 DRIVE LOCKED - JOYSTICK MOVED BEFORE FOOTSWITCH ..................................................................... 1-68
2-2 FSW INTERLOCK TRIPPED ............................................................................................................................. 1-86
2-2 STEER LOCKED - SELECTED BEFORE FOOTSWITCH ................................................................................. 1-142
2-2 STEER SWITCHES FAULTY ............................................................................................................................. 1-142
2-2 WAITING FOR FSW TO BE OPEN ................................................................................................................... 1-172
2-3 FOOTSWITCH SELECTED BEFORE START ................................................................................................... 1-77
2-3 L/S JOY. CENTER TAP BAD ............................................................................................................................ 1-93
2-3 L/S JOY. OUT OF RANGE HIGH ...................................................................................................................... 1-93
2-3 L/S JOY. OUT OF RANGE LOW ....................................................................................................................... 1-93
2-3 LIFT/SWING LOCKED - JOYSTICK MOVED BEFORE FOOTSWITCH ............................................................ 1-95
2-3 PUMP SWITCHES FAULTY - CHECK DIAGNOSTICS/BOOM ......................................................................... 1-125
2-3 PUMP SWITCHES LOCKED - SELECTED BEFORE AUX POWER ................................................................. 1-125
2-3 PUMP SWITCHES LOCKED - SELECTED BEFORE FOOTSWITCH ............................................................... 1-125
2-3 PUMP SWITCHES LOCKED - SELECTED BEFORE START SWITCH ............................................................ 1-125
2-3 START SWITCH LOCKED - SELECTED BEFORE KEYSWITCH ..................................................................... 1-142
2-5 BACKUP BLAM COMMUNICATIONS ACTIVE ................................................................................................. 1-36
2-5 BOOM PREVENTED - DRIVE SELECTED ........................................................................................................ 1-58
2-5 CAN DONGLE ATTACHED - HYDRAULICS NOT RESTRICTED ..................................................................... 1-58
2-5 DISCONNECT ANALYZER AND CYCLE EMS TO PERFORM BOOM RETRIEVAL ......................................... 1-67
2-5 DRIVE PREVENTED - ABOVE ELEVATION ..................................................................................................... 1-68
2-5 DRIVE PREVENTED - BOOM SELECTED ........................................................................................................ 1-68
2-5 DRIVE PREVENTED - TILTED & ABOVE ELEVATION ..................................................................................... 1-68
2-5 FUNCTIONS LOCKED OUT - BLAM MODULE SOFTWARE VERSION IMPROPER ....................................... 1-87
2-5 FUNCTIONS LOCKED OUT - CHASSIS MODULE SOFTWARE VERSION IMPROPER ................................. 1-87

INTRODUCTION
A-10 1250AJP 3128411
2-5 FUNCTIONS LOCKED OUT - PLATFORM MODULE SOFTWARE VERSION IMPROPER .............................. 1-87
2-5 GENERATOR MOTION CUTOUT ACTIVE ....................................................................................................... 1-88
2-5 JIB SWING PREVENTED - IN 1000# MODE ................................................................................................... 1-92
2-5 MODEL CHANGED - HYDRAULICS SUSPENDED - CYCLE EMS .................................................................. 1-120
3-?
3-3 ALTERNATOR POWER SHORT TO GROUND ................................................................................................ 1-35
3-3 AUX POWER OPEN CIRCUIT .......................................................................................................................... 1-35
3-3 AUX POWER SHORT TO BATTERY ................................................................................................................. 1-35
3-3 AUX POWER SHORT TO GROUND ................................................................................................................. 1-35
3-3 BASKET DOWN OVERRIDE OPEN CIRCUIT ................................................................................................... 1-36
3-3 BASKET DOWN OVERRIDE SHORT TO BATTERY ......................................................................................... 1-36
3-3 BASKET DOWN OVERRIDE SHORT TO GROUND ......................................................................................... 1-36
3-3 BASKET UP OVERRIDE OPEN CIRCUIT ......................................................................................................... 1-45
3-3 BASKET UP OVERRIDE SHORT TO BATTERY ............................................................................................... 1-45
3-3 BASKET UP OVERRIDE SHORT TO GROUND ............................................................................................... 1-45
3-3 COLD START ADVANCE SOLENOID OPEN CIRCUIT .................................................................................... 1-62
3-3 COLD START ADVANCE SOLENOID SHORT TO BATTERY .......................................................................... 1-62
3-3 COLD START ADVANCE SOLENOID SHORT TO GROUND .......................................................................... 1-62
3-3 COMMON STB OR OC PROCEDURE ............................................................................................................. 1-174
3-3 COMMON STG PROCEDURE ......................................................................................................................... 1-175
3-3 ELECTRIC PUMP OPEN CIRCUIT ................................................................................................................... 1-69
3-3 ELECTRIC PUMP SHORT TO BATTERY ......................................................................................................... 1-69
3-3 ELECTRIC PUMP SHORT TO GROUND ......................................................................................................... 1-69
3-3 GEN SET/WELDER OPEN CIRCUIT ................................................................................................................ 1-87
3-3 GEN SET/WELDER SHORT TO BATTERY ...................................................................................................... 1-88
3-3 GEN SET/WELDER SHORT TO GROUND ...................................................................................................... 1-88
3-3 GLOW PLUG OPEN CIRCUIT .......................................................................................................................... 1-88
3-3 GLOW PLUG SHORT TO BATTERY ................................................................................................................ 1-88
3-3 GLOW PLUG SHORT TO GROUND ................................................................................................................ 1-88
3-3 GROUND ALARM OPEN CIRCUIT ................................................................................................................... 1-88
3-3 GROUND ALARM SHORT TO BATTERY ......................................................................................................... 1-88
3-3 GROUND ALARM SHORT TO GROUND ......................................................................................................... 1-88
3-3 HEAD TAIL LIGHT OPEN CIRCUIT .................................................................................................................. 1-89
3-3 HEAD TAIL LIGHT SHORT TO BATTERY ........................................................................................................ 1-89
3-3 HEAD TAIL LIGHT SHORT TO GROUND ........................................................................................................ 1-90
3-3 HORN OPEN CIRCUIT ..................................................................................................................................... 1-90
3-3 HORN SHORT TO BATTERY ........................................................................................................................... 1-90
3-3 HORN SHORT TO GROUND ........................................................................................................................... 1-90
3-3 HOUR METER SHORT TO BATTERY .............................................................................................................. 1-90
3-3 HOUR METER SHORT TO GROUND .............................................................................................................. 1-90
3-3 LEFT FORWARD DRIVE PUMP OPEN CIRCUIT .............................................................................................. 1-93
3-3 LEFT FORWARD DRIVE PUMP SHORT TO BATTERY .................................................................................... 1-93
3-3 LEFT FORWARD DRIVE PUMP SHORT TO GROUND ....................................................................................1-93
3-3 LEFT REVERSE DRIVE PUMP OPEN CIRCUIT ............................................................................................... 1-93
3-3 LEFT REVERSE DRIVE PUMP SHORT TO BATTERY ..................................................................................... 1-93
CODE - MESSAGE PAGE NO.

INTRODUCTION
3128411 1250AJP A-11
3-3 LEFT REVERSE DRIVE PUMP SHORT TO GROUND ..................................................................................... 1-93
3-3 MAIN DUMP OPEN CIRCUIT ........................................................................................................................... 1-109
3-3 MAIN DUMP SHORT TO BATTERY .................................................................................................................. 1-109
3-3 MAIN DUMP SHORT TO GROUND .................................................................................................................. 1-109
3-3 MAIN IN OPEN CIRCUIT .................................................................................................................................. 1-109
3-3 MAIN IN SHORT TO BATTERY ......................................................................................................................... 1-109
3-3 MAIN IN SHORT TO GROUND ......................................................................................................................... 1-109
3-3 MAIN LIFT APU OPEN CIRCUIT ....................................................................................................................... 1-109
3-3 MAIN LIFT APU SHORT TO BATTERY ............................................................................................................. 1-110
3-3 MAIN LIFT APU SHORT TO GROUND ............................................................................................................. 1-110
3-3 MAIN LIFT ENABLE OPEN CIRCUIT ................................................................................................................ 1-110
3-3 MAIN LIFT ENABLE SHORT TO BATTERY ...................................................................................................... 1-110
3-3 MAIN LIFT ENABLE SHORT TO GROUND ...................................................................................................... 1-110
3-3 MAIN LIFT PILOT PRESSURE FAILURE .......................................................................................................... 1-110
3-3 MAIN LIFT PILOT PRESSURE SWITCH FAILURE ........................................................................................... 1-110
3-3 MAIN OUT OPEN CIRCUIT .............................................................................................................................. 1-115
3-3 MAIN OUT SHORT TO BATTERY ..................................................................................................................... 1-115
3-3 MAIN OUT SHORT TO GROUND ..................................................................................................................... 1-115
3-3 MAIN TELE FLOW CONTROL OPEN CIRCUIT ................................................................................................ 1-115
3-3 MAIN TELE FLOW CONTROL SHORT TO BATTERY ...................................................................................... 1-116
3-3 MAIN TELE FLOW CONTROL SHORT TO GROUND ...................................................................................... 1-116
3-3 NO MAIN LIFT PILOT PRESSURE ................................................................................................................... 1-121
3-3 PARKING BRAKE OPEN CIRCUIT ................................................................................................................... 1-122
3-3 PARKING BRAKE SHORT TO BATTERY ......................................................................................................... 1-122
3-3 PARKING BRAKE SHORT TO GROUND .......................................................................................................... 1-122
3-3 PVG VALVE ENABLE OPEN CIRCUIT .............................................................................................................. 1-125
3-3 PVG VALVE ENABLE SHORT TO BATTERY .................................................................................................... 1-126
3-3 PVG VALVE ENABLE SHORT TO GROUND .................................................................................................... 1-126
3-3 RESTRICTED TO TRANSPORT - AXLE LOCKOUT VALVE STB OR OC ......................................................... 1-134
3-3 RESTRICTED TO TRANSPORT - PARKING BRAKE STB ................................................................................1-137
3-3 RIGHT FORWARD DRIVE PUMP OPEN CIRCUIT ........................................................................................... 1-137
3-3 RIGHT FORWARD DRIVE PUMP SHORT TO BATTERY ................................................................................. 1-137
3-3 RIGHT FORWARD DRIVE PUMP SHORT TO GROUND ................................................................................. 1-138
3-3 RIGHT REVERSE DRIVE PUMP OPEN CIRCUIT ............................................................................................. 1-138
3-3 RIGHT REVERSE DRIVE PUMP SHORT TO BATTERY ................................................................................... 1-138
3-3 RIGHT REVERSE DRIVE PUMP SHORT TO GROUND ...................................................................................1-138
3-3 START SOLENOID OPEN CIRCUIT ................................................................................................................. 1-141
3-3 START SOLENOID SHORT TO BATTERY ....................................................................................................... 1-142
3-3 START SOLENOID SHORT TO GROUND ....................................................................................................... 1-142
3-3 SWING LEFT OPEN CIRCUIT .......................................................................................................................... 1-142
3-3 SWING LEFT SHORT TO BATTERY ................................................................................................................. 1-142
3-3 SWING RIGHT OPEN CIRCUIT ........................................................................................................................ 1-142
3-3 SWING RIGHT SHORT TO BATTERY .............................................................................................................. 1-143
3-3 THROTTLE ACTUATOR OPEN CIRCUIT ......................................................................................................... 1-143
CODE - MESSAGE PAGE NO.

INTRODUCTION
A-12 1250AJP 3128411
3-3 THROTTLE ACTUATOR SHORT TO BATTERY ............................................................................................... 1-143
3-3 THROTTLE ACTUATOR SHORT TO GROUND ............................................................................................... 1-143
3-3 TOWER LIFT APU VALVE OPEN CIRCUIT ...................................................................................................... 1-147
3-3 TOWER LIFT APU VALVE SHORT TO BATTERY ............................................................................................. 1-147
3-3 TOWER LIFT APU VALVE SHORT TO GROUND ............................................................................................. 1-148
3-3 TOWER LIFT APU VALVE STUCK OPEN ......................................................................................................... 1-148
3-3 TOWER LIFT ENABLE OPEN CIRCUIT ............................................................................................................ 1-148
3-3 TOWER LIFT ENABLE SHORT TO BATTERY .................................................................................................. 1-148
3-3 TOWER LIFT ENABLE SHORT TO GROUND .................................................................................................. 1-148
3-3 TOWER LIFT ENABLE STUCK OPEN .............................................................................................................. 1-148
3-3 TOWER TELE APU VALVE STUCK OPEN ....................................................................................................... 1-153
3-3 TOWER TELE ENABLE OPEN CIRCUIT .......................................................................................................... 1-153
3-3 TOWER TELE ENABLE SHORT TO BATTERY ................................................................................................ 1-153
3-3 TOWER TELE ENABLE SHORT TO GROUND ................................................................................................ 1-153
3-3 TOWER TELE ENABLE STUCK OPEN ............................................................................................................ 1-154
3-3 TOWER TELESCOPE APU OPEN CIRCUIT .................................................................................................... 1-154
3-3 TOWER TELESCOPE APU SHORT TO BATTERY ........................................................................................... 1-154
3-3 TOWER TELESCOPE APU SHORT TO GROUND ........................................................................................... 1-154
3-3 TWO SPEED OPEN CIRCUIT ........................................................................................................................... 1-160
3-3 TWO SPEED SHORT TO BATTERY ................................................................................................................. 1-160
3-3 TWO SPEED SHORT TO GROUND ................................................................................................................. 1-160
3-4 BASKET DOWN SHORT TO BATTERY OR OPEN CIRCUIT ........................................................................... 1-36
3-4 BASKET DOWN SHORT TO GROUND ............................................................................................................ 1-36
3-4 BASKET LEFT OPEN CIRCUIT ........................................................................................................................ 1-36
3-4 BASKET LEFT SHORT TO BATTERY ............................................................................................................... 1-36
3-4 BASKET LEFT SHORT TO GROUND ............................................................................................................... 1-37
3-4 BASKET RIGHT OPEN CIRCUIT ...................................................................................................................... 1-44
3-4 BASKET RIGHT SHORT TO BATTERY ............................................................................................................ 1-44
3-4 BASKET RIGHT SHORT TO GROUND ............................................................................................................ 1-45
3-4 BASKET UP SHORT TO BATTERY OR OPEN CIRCUIT .................................................................................. 1-45
3-4 BASKET UP SHORT TO GROUND .................................................................................................................. 1-45
3-4 JIB DOWN OPEN CIRCUIT .............................................................................................................................. 1-91
3-4 JIB DOWN SHORT TO BATTERY .................................................................................................................... 1-91
3-4 JIB DOWN SHORT TO GROUND .................................................................................................................... 1-91
3-4 JIB LEFT OPEN CIRCUIT ................................................................................................................................. 1-91
3-4 JIB LEFT SHORT TO BATTERY ....................................................................................................................... 1-92
3-4 JIB LEFT SHORT TO GROUND ....................................................................................................................... 1-92
3-4 JIB RIGHT OPEN CIRCUIT ............................................................................................................................... 1-92
3-4 JIB RIGHT SHORT TO BATTERY ..................................................................................................................... 1-92
3-4 JIB RIGHT SHORT TO GROUND ..................................................................................................................... 1-92
3-4 JIB UP OPEN CIRCUIT ..................................................................................................................................... 1-92
3-4 JIB UP SHORT TO BATTERY ........................................................................................................................... 1-92
3-4 JIB UP SHORT TO GROUND ........................................................................................................................... 1-92
3-4 PLATFORM CONTROL VALVE OPEN CIRCUIT .............................................................................................. 1-123
3-4 PLATFORM CONTROL VALVE SHORT TO BATTERY .................................................................................... 1-123
CODE - MESSAGE PAGE NO.

INTRODUCTION
3128411 1250AJP A-13
3-4 PLATFORM CONTROL VALVE SHORT TO GROUND .....................................................................................1-123
4-?
4-3 AIR FILTER BYPASSED .................................................................................................................................... 1-35
4-3 COOLANT TEMPERATURE SHORT TO GROUND .......................................................................................... 1-62
4-3 ENGINE TROUBLE CODE ................................................................................................................................ 1-70
4-3 FUEL SENSOR SHORT TO BATTERY ............................................................................................................. 1-87
4-3 FUEL SENSOR SHORT TO GROUND ............................................................................................................. 1-87
4-3 HIGH ENGINE TEMP ........................................................................................................................................ 1-90
4-3 LOW OIL PRESSURE ....................................................................................................................................... 1-96
4-3 NO ALTERNATOR OUTPUT ............................................................................................................................. 1-121
4-3 OIL PRESSURE SHORT TO BATTERY ............................................................................................................ 1-121
4-3 OIL PRESSURE SHORT TO GROUND ............................................................................................................ 1-122
4-3 THROTTLE ACTUATOR FAILURE .................................................................................................................... 1-143
4-3 WRONG ENGINE SELECTED - ECM PRESENT ............................................................................................. 1-172
4-4 BATTERY LOW ................................................................................................................................................. 1-45
4-4 BATTERY TOO HIGH - SYSTEM SHUT DOWN ............................................................................................... 1-45
4-4 BATTERY TOO LOW - SYSTEM SHUT DOWN ................................................................................................ 1-45
4-5 MAIN LIFT PVG VALVE COMMAND IMPROPER ............................................................................................. 1-110
4-5 MAIN LIFT PVG VALVE COMMUNICATIONS .................................................................................................. 1-111
4-5 MAIN LIFT PVG VALVE HIGH VOLTAGE ......................................................................................................... 1-111
4-5 MAIN LIFT PVG VALVE INTERNAL FAULT ...................................................................................................... 1-112
4-5 MAIN LIFT PVG VALVE LOCATION IMPROPER .............................................................................................. 1-112
4-5 MAIN LIFT PVG VALVE LOW VOLTAGE .......................................................................................................... 1-112
4-5 MAIN LIFT PVG VALVE OBSTRUCTED ........................................................................................................... 1-113
4-5 MAIN LIFT PVG VALVE PARAMETERS INCORRECT ...................................................................................... 1-114
4-5 MAIN LIFT PVG VALVE SENT UNRECOGNIZED FAULT ................................................................................1-114
4-5 MAIN LIFT PVG VALVE SETUP FAULT ............................................................................................................ 1-114
4-5 MAIN LIFT PVG VALVE STUCK EXTENDED .................................................................................................... 1-114
4-5 MAIN LIFT PVG VALVE STUCK NEUTRAL ...................................................................................................... 1-114
4-5 MAIN LIFT PVG VALVE STUCK RETRACTED .................................................................................................. 1-114
4-5 MAIN LIFT PVG VALVE TIMEOUT .................................................................................................................... 1-115
4-5 MAIN LIFT PVG VALVE WIRING INCORRECT ................................................................................................. 1-115
4-5 TOWER LIFT PVG VALVE COMMAND IMPROPER ......................................................................................... 1-148
4-5 TOWER LIFT PVG VALVE COMMUNICATIONS .............................................................................................. 1-149
4-5 TOWER LIFT PVG VALVE HIGH VOLTAGE ..................................................................................................... 1-149
4-5 TOWER LIFT PVG VALVE INTERNAL FAULT .................................................................................................. 1-150
4-5 TOWER LIFT PVG VALVE LOCATION IMPROPER .......................................................................................... 1-150
4-5 TOWER LIFT PVG VALVE LOW VOLTAGE ...................................................................................................... 1-150
4-5 TOWER LIFT PVG VALVE OBSTRUCTED ....................................................................................................... 1-151
4-5 TOWER LIFT PVG VALVE PARAMETERS INCORRECT ..................................................................................1-152
4-5 TOWER LIFT PVG VALVE SEND UNRECOGNIZED FAULT ............................................................................ 1-152
4-5 TOWER LIFT PVG VALVE SETUP FAULT ........................................................................................................ 1-152
4-5 TOWER LIFT PVG VALVE STUCK EXTENDED ................................................................................................ 1-152
4-5 TOWER LIFT PVG VALVE STUCK NEUTRAL .................................................................................................. 1-152
CODE - MESSAGE PAGE NO.

INTRODUCTION
A-14 1250AJP 3128411
4-5 TOWER LIFT PVG VALVE STUCK RETRACTED ............................................................................................. 1-152
4-5 TOWER LIFT PVG VALVE TIMEOUT ................................................................................................................ 1-153
4-5 TOWER LIFT PVG VALVE WIRING INCORRECT ............................................................................................. 1-153
4-5 TOWER TELESCOPE PVG VALVE COMMAND IMPROPER ........................................................................... 1-154
4-5 TOWER TELESCOPE PVG VALVE COMMUNICATIONS ................................................................................ 1-154
4-5 TOWER TELESCOPE PVG VALVE HIGH VOLTAGE ....................................................................................... 1-155
4-5 TOWER TELESCOPE PVG VALVE INTERNAL FAULT .................................................................................... 1-155
4-5 TOWER TELESCOPE PVG VALVE LOCATION IMPROPER ............................................................................ 1-156
4-5 TOWER TELESCOPE PVG VALVE LOW VOLTAGE ........................................................................................ 1-156
4-5 TOWER TELESCOPE PVG VALVE OBSTRUCTED ......................................................................................... 1-157
4-5 TOWER TELESCOPE PVG VALVE PARAMETERS INCORRECT .................................................................... 1-157
4-5 TOWER TELESCOPE PVG VALVE SENT UNRECOGNIZED FAULT .............................................................. 1-158
4-5 TOWER TELESCOPE PVG VALVE SETUP FAULT .......................................................................................... 1-158
4-5 TOWER TELESCOPE PVG VALVE STUCK EXTENDED .................................................................................. 1-158
4-5 TOWER TELESCOPE PVG VALVE STUCK NEUTRAL .................................................................................... 1-158
4-5 TOWER TELESCOPE PVG VALVE STUCK RETRACTED ............................................................................... 1-158
4-5 TOWER TELESCOPE PVG VALVE TIMEOUT .................................................................................................. 1-158
4-5 TOWER TELESCOPE PVG VALVE WIRING INCORRECT ............................................................................... 1-159
5-?
5-5 SPEED INPUT LOST ........................................................................................................................................ 1-141
5-5 SPEED SENSOR READING INVALID SPEED .................................................................................................. 1-141
6-?
6-6 BLAM CAN COMMUNICATIONS LOST ........................................................................................................... 1-48
6-6 CHASSIS CAN COMMUNICATIONS LOST ..................................................................................................... 1-58
6-6 CYLINDER LOAD PIN CAN COMMUNICATIONS LOST ..................................................................................1-63
6-6 ENGINE CONTROLLER CAN COMMUNICATIONS LOST .............................................................................. 1-69
6-6 EXCESSIVE CAN BUS COMMUNICATION ERRORS ...................................................................................... 1-73
6-6 MAIN ANGL1 CAN COMMUNICATIONS LOST ............................................................................................... 1-100
6-6 MAIN ANGL2 CAN COMMUNICATIONS LOST ............................................................................................... 1-102
6-6 PLATFORM CAN COMMUNICATIONS LOST .................................................................................................. 1-122
8-?
8-1 CHASSIS TILT SENSOR NOT CALIBRATED ................................................................................................... 1-62
8-2 DRIVE & BOOM PREVENTED - PLATFORM OVERLOADED .......................................................................... 1-67
8-2 LIFT UP & TELE OUT PREVENTED - PLATFORM OVERLOADED .................................................................. 1-94
8-2 LOAD SENSOR NOT CALIBRATED ................................................................................................................. 1-96
8-2 RUNNING AT CREEP - PLATFORM OVERLOADED ....................................................................................... 1-140
8-3 BASKET LEVELING CRACKPOINT DOWN NOT CALIBRATED ...................................................................... 1-37
8-3 BASKET LEVELING CRACKPOINT UP NOT CALIBRATED ............................................................................. 1-38
8-3 BASKET LEVELING OVERRIDE OFF ............................................................................................................... 1-39
8-3 BASKET LEVELING OVERRIDE ON ................................................................................................................ 1-39
8-3 BASKET LEVELING SENSOR 1 SHORT TO BATTERY ................................................................................... 1-39
8-3 BASKET LEVELING SENSOR 1 SHORT TO GROUND OR OPEN CIRCUIT ................................................... 1-39
8-3 BASKET LEVELING SENSOR 2 SHORT TO BATTERY ................................................................................... 1-39
8-3 BASKET LEVELING SENSOR 2 SHORT TO GROUND OR OPEN CIRCUIT ................................................... 1-39
8-3 BASKET LEVELING SYSTEM TIMEOUT .......................................................................................................... 1-39
CODE - MESSAGE PAGE NO.

INTRODUCTION
3128411 1250AJP A-15
8-3 BASKET LEVELING TILT REFERENCE 1 OUT OF RANGE ............................................................................. 1-41
8-3 BASKET LEVELING TILT REFERENCE 2 OUT OF RANGE ............................................................................. 1-41
8-3 BASKET LEVELING TILT SENSOR 1 COMMUNICATIONS LOST ................................................................... 1-41
8-3 BASKET LEVELING TILT SENSOR 2 COMMUNICATIONS LOST ................................................................... 1-43
8-3 BASKET LEVELING TILT SENSOR DIFFERENCE TOO GREAT ..................................................................... 1-44
8-4 BOOM ANGLE SENSOR #1 COMMUNICATIONS FAULT .............................................................................. 1-54
8-4 BOOM ANGLE SENSOR #2 COMMUNICATIONS FAULT .............................................................................. 1-56
8-4 BOOM LENGTH SENSOR #1 OUT OF RANGE HIGH ....................................................................................1-57
8-4 BOOM LENGTH SENSOR #1 OUT OF RANGE LOW .....................................................................................1-58
8-4 BOOM LENGTH SENSOR #2 OUT OF RANGE HIGH ....................................................................................1-58
8-4 BOOM LENGTH SENSOR #2 OUT OF RANGE LOW .....................................................................................1-58
8-4 CYL ANGLE SENSOR/SW DISAGREEMENT ................................................................................................... 1-62
8-4 DCAP LEN SW DISAGREEMENT ..................................................................................................................... 1-64
8-4 INVALID ANGLE SENSOR #1 MODEL ............................................................................................................ 1-91
8-4 INVALID ANGLE SENSOR #2 MODEL ............................................................................................................ 1-91
8-4 MAIN ANGL1 INVALID ANGLE ......................................................................................................................... 1-101
8-4 MAIN ANGL2 INVALID ANGLE ......................................................................................................................... 1-103
8-4 MAIN ANGLE MOVEMENT WITHOUT CMD .................................................................................................... 1-104
8-4 MAIN ANGLE SENSOR DISAGREEMENT ....................................................................................................... 1-104
8-4 MAIN ANGLE SENSOR NOT DETECTING ANGLE CHANGE ......................................................................... 1-105
8-4 MAIN BOOM TRN ANGLE SW/SENSOR DISAGREEMENT ............................................................................ 1-108
8-4 MAIN TRN ANGLE SW FAILED ........................................................................................................................ 1-116
8-4 MAIN TRN LEN SW DISAGREEMENT ............................................................................................................. 1-118
8-4 TOWER ANGLE SENSOR DISAGREEMENT ................................................................................................... 1-143
8-4 TOWER LENGTH SENSOR DISAGREEMENT ................................................................................................. 1-144
8-4 TOWER LENGTH SWITCH/SENSOR DISAGREEMENT .................................................................................. 1-145
8-4 TRN DUAL CAP BAD TRANSITION .................................................................................................................. 1-159
8-4 TRN DUAL CAP SWITCHES BAD .................................................................................................................... 1-160
8-4 TWR ANGL1 INVALID ANGLE .......................................................................................................................... 1-161
8-4 TWR ANGL2 INVALID ANGLE .......................................................................................................................... 1-161
8-4 TWR CYL ANGLE MOVEMENT WITHOUT CMD ............................................................................................. 1-162
8-4 TWR CYL ANGLE NOT DETECTING ANGLE CHANGE .................................................................................. 1-162
8-4 TWR CYL ANGLE SENSOR OUT OF RANGE HIGH ........................................................................................ 1-164
8-4 TWR CYL ANGLE SENSOR OUT OF RANGE LOW ......................................................................................... 1-164
8-4 TWR LENGTH MOVEMENT WITHOUT CMD ................................................................................................... 1-165
8-4 TWR LENGTH SENSOR NOT DETECTING LENGTH CHANGE ..................................................................... 1-166
8-4 TWR LENGTH SENSOR ONE VALUE OUT OF RANGE HIGH ........................................................................ 1-167
8-4 TWR LENGTH SENSOR ONE VALUE OUT OF RANGE LOW ......................................................................... 1-168
8-4 TWR LENGTH SENSOR TWO VALUE OUT OF RANGE HIGH ....................................................................... 1-169
8-4 TWR LENGTH SENSOR TWO VALUE OUT OF RANGE LOW ........................................................................ 1-170
8-4 TWR TRN SW DISAGREEMENT ...................................................................................................................... 1-171
8-4 WRONG MAIN LIFT RESPONSE ...................................................................................................................... 1-173
8-4 WRONG MAIN TELE RESPONSE .................................................................................................................... 1-173
8-4 WRONG TWR LIFT RESPONSE ....................................................................................................................... 1-173
CODE - MESSAGE PAGE NO.

INTRODUCTION
A-16 1250AJP 3128411
8-4 WRONG TWR TELE RESPONSE ..................................................................................................................... 1-174
8-5 LOAD PIN FORCE TOO LOW OVER MAIN ANGLE CHANGE ........................................................................ 1-95
8-5 LOAD PIN FORCE TOO LOW OVER MAIN LENGTH TRANSITION ................................................................ 1-95
8-5 LOAD PIN FORCE TOO LOW OVER TOWER ANGLE CHANGE .................................................................... 1-95
8-5 LOAD PIN FORCE VALUES NOT CHANGING ................................................................................................. 1-95
8-5 LOAD PIN HORIZONTAL FORCE OUT OF RANGE ........................................................................................ 1-95
8-5 LOAD PIN SENSOR FAULT ............................................................................................................................. 1-96
8-5 LOAD PIN VERTICAL FORCE OUT OF RANGE .............................................................................................. 1-96
8-5 LOAD PIN/TOWER LIFT CYLINDER ANGLE DISAGREEMENT ...................................................................... 1-96
8-5 NEW LOAD PIN DETECTED FAULT ................................................................................................................ 1-121
8-6 AXLE EXT STB OR OC ..................................................................................................................................... 1-35
8-6 AXLE EXT STG ................................................................................................................................................. 1-35
8-6 AXLE RET STB OR OC ..................................................................................................................................... 1-35
8-6 AXLE RET STG ................................................................................................................................................. 1-36
8-6 ENGINE SHUTDOWN - AXLE LOCKOUT VALVE FAULT ................................................................................ 1-70
8-6 FRONT LEFT WHEEL BLOCKED ..................................................................................................................... 1-77
8-6 FRONT LEFT WHEEL SENSOR FAULT - CHECK MOUNTING ....................................................................... 1-78
8-6 FRONT LEFT WHEEL SENSOR OUT OF RANGE HIGH ................................................................................. 1-80
8-6 FRONT LEFT WHEEL SENSOR OUT OF RANGE LOW .................................................................................. 1-81
8-6 FRONT RIGHT WHEEL BLOCKED .................................................................................................................. 1-82
8-6 FRONT RIGHT WHEEL SENSOR FAULT - CHECK MOUNTING .................................................................... 1-83
8-6 FRONT RIGHT WHEEL SENSOR OUT OF RANGE HIGH ............................................................................... 1-84
8-6 FRONT RIGHT WHEEL SENSOR OUT OF RANGE LOW ................................................................................ 1-85
8-6 LT FNT STEER LT STB OR OC ........................................................................................................................ 1-97
8-6 LT FNT STEER LT STG .................................................................................................................................... 1-98
8-6 LT FNT STEER RT STB OR OC ........................................................................................................................ 1-98
8-6 LT FNT STEER RT STG .................................................................................................................................... 1-99
8-6 LT REAR STEER LT STB OR OC ..................................................................................................................... 1-99
8-6 LT REAR STEER LT STG .................................................................................................................................. 1-99
8-6 LT REAR STEER RT STB OR OC ..................................................................................................................... 1-99
8-6 LT REAR STEER RT STG ................................................................................................................................. 1-100
8-6 REAR LEFT WHEEL BLOCKED ....................................................................................................................... 1-126
8-6 REAR LEFT WHEEL SENSOR FAULT - CHECK MOUNTING ......................................................................... 1-127
8-6 REAR LEFT WHEEL SENSOR OUT OF RANGE HIGH .................................................................................... 1-128
8-6 REAR LEFT WHEEL SENSOR OUT OF RANGE LOW ..................................................................................... 1-129
8-6 REAR RIGHT WHEEL BLOCKED ..................................................................................................................... 1-130
8-6 REAR RIGHT WHEEL SENSOR FAULT - CHECK MOUNTING ....................................................................... 1-131
8-6 REAR RIGHT WHEEL SENSOR OUT OF RANGE HIGH ................................................................................. 1-132
8-6 REAR RIGHT WHEEL SENSOR OUT OF RANGE LOW .................................................................................. 1-133
8-6 RESTRICTED TO TRANSPORT - OSC AXLE PRESS SW DISAGREEMENT .................................................. 1-135
8-6 RT FNT STEER LT STB OR OC ........................................................................................................................ 1-138
8-6 RT FNT STEER LT STG .................................................................................................................................... 1-138
8-6 RT FNT STEER RT STB OR OC ....................................................................................................................... 1-138
8-6 RT FNT STEER RT STG ................................................................................................................................... 1-138
8-6 RT REAR STEER LT STB OR OC ..................................................................................................................... 1-138
CODE - MESSAGE PAGE NO.

INTRODUCTION
3128411 1250AJP A-17
8-6 RT REAR STEER LT STG ................................................................................................................................. 1-138
8-6 RT REAR STEER RT STB OR OC ..................................................................................................................... 1-139
8-6 RT REAR STEER RT STG ................................................................................................................................. 1-139
8-7 NEW MAIN ANGL1 SENSOR DETECTED ....................................................................................................... 1-121
8-7 NEW MAIN ANGL2 SENSOR DETECTED ....................................................................................................... 1-121
9-?
9-9 BLAM BACKUP COMMUNICATIONS LINK FAULTY ....................................................................................... 1-46
9-9 BLAM BACKUP COMMUNICATIONS LOST - HYDRAULICS SUSPENDED ................................................... 1-47
9-9 BLAM HIGH RES A/D FAILURE ........................................................................................................................ 1-53
9-9 BLAM SENSOR SUPPLY OUT OF RANGE HIGH ............................................................................................ 1-53
9-9 BLAM SENSOR SUPPLY OUT OF RANGE LOW ............................................................................................. 1-54
9-9 BOOM SENSORS NOT CALIBRATED ............................................................................................................. 1-58
9-9 CHASSIS SENSOR SUPPLY OUT OF RANGE HIGH ...................................................................................... 1-60
9-9 CHASSIS SENSOR SUPPLY OUT OF RANGE Low ........................................................................................ 1-61
9-9 CHASSIS TILT SENSOR GAIN OUT OF RANGE ............................................................................................. 1-61
9-9 CHASSIS TILT SENSOR NOT GAIN CALIBRATED ......................................................................................... 1-62
9-9 DRIVE CRACKPOINTS NOT CALIBRATED ...................................................................................................... 1-67
9-9 EEPROM FAILURE - CHECK ALL SETTINGS .................................................................................................. 1-69
9-9 ENVELOPE CONTROL DISABLED .................................................................................................................. 1-73
9-9 GROUND MODULE CONSTANT DATA UPDATE REQUIRED ......................................................................... 1-89
9-9 GROUND MODULE FAILURE HIGH SIDE DRIVER CUTOUT FAULTY ........................................................... 1-89
9-9 GROUND MODULE FAILURE HWFS CODE 1 ................................................................................................. 1-89
9-9 GROUND SENSOR REF VOLTAGE OUT OF RANGE .....................................................................................1-89
9-9 HIGH RESOLUTION A2D FAILURE-INTERRUPT LOST .................................................................................. 1-90
9-9 HIGH RESOLUTION A2D FAILURE-REINIT LIMIT ........................................................................................... 1-90
9-9 LENGTH SENSOR REF VOLTAGE HIGH ........................................................................................................ 1-94
9-9 LENGTH SENSOR REF VOLTAGE LOW ......................................................................................................... 1-94
9-9 LOAD PIN NOT CALIBRATED .......................................................................................................................... 1-95
9-9 MOMENT CONTROL DISABLED ..................................................................................................................... 1-120
9-9 PLATFORM MODULE FAILURE HWFS CODE 1 ............................................................................................. 1-123
9-9 PLATFORM MODULE SOFTWARE UPDATE REQUIRED ............................................................................... 1-123
9-9 PLATFORM SENSOR REF VOLTAGE OUT OF RANGE .................................................................................. 1-124
9-9 RUNNING AT CREEP - CREEP SWITCH OPEN .............................................................................................. 1-139
9-9 STEER SENSORS NOT CALIBRATED ............................................................................................................. 1-142
CODE - MESSAGE PAGE NO.

INTRODUCTION
A-18 1250AJP 3128411
This Page Left Blank Intentionally

SAFETY
3128411 1250AJP B-19
SECTION B. TROUBLESHOOTING SAFETY PRECAUTIONS
B.1 GENERAL
This section contains the general safety precautions
which must be observed during troubleshooting of the
aerial platform. It is of utmost importance that mainte-
nance personnel pay strict attention to these warnings
and precautions to avoid possible injury to themselves or
others, or damage to the equipment. A maintenance pro-
gram must be followed to ensure that the machine is safe
to operate.
MODIFICATION OF THE MACHINE WITHOUT CERTIFICATION BY
A RESPONSIBLE AUTHORITY THAT THE MACHINE IS AT LEAST
AS SAFE AS ORIGINALLY MANUFACTURED, IS A SAFETY VIOLA-
TION.
The specific precautions to be observed during trouble-
shooting are inserted at the appropriate point in the man-
ual. These precautions are, for the most part, those that
apply when servicing hydraulic and larger machine com-
ponent parts.
Your safety, and that of others, is the first consideration
when engaging in the troubleshooting of equipment.
Always be conscious of weight. Never attempt to move
heavy parts without the aid of a mechanical device. Do not
allow heavy objects to rest in an unstable position. When
raising a portion of the equipment, ensure that adequate
support is provided.
SINCE THE MACHINE MANUFACTURER HAS NO
DIRECT CONTROL OVER troubleshooting, SAFETY IN
THIS AREA IS THE RESPONSIBILITY OF THE OWNER/
OPERATOR.
B.2 HYDRAULIC SYSTEM SAFETY
It should be noted that the machines hydraulic systems
operate at extremely high potentially dangerous pres-
sures. Every effort should be made to relieve any system
pressure prior to disconnecting or removing any portion of
the system.
B.3 TROUBLESHOOTING SAFETY
FAILURE TO COMPLY WITH SAFETY PRECAUTIONS LISTED IN
THIS SECTION MAY RESULT IN MACHINE DAMAGE, PERSONNEL
INJURY OR DEATH AND IS A SAFETY VIOLATION.
• No smoking is mandatory. Never refuel during electrical
storms. Ensure that fuel cap is closed and secure at all
other times.
• Remove all rings, watches and jewelry when performing
any troubleshooting.
• Do not wear long hair unrestrained, or loose-fitting
clothing and neckties which are apt to become caught
on or entangled in equipment.
• Observe and obey all warnings and cautions on
machine and in service and operators manuals.
• Keep oil, grease, water, etc. wiped from standing sur-
faces and hand holds.
• Use caution when checking a hot, pressurized coolant
system.
• Never work under an elevated boom until boom has
been safely restrained from any movement by blocking
or overhead sling, or boom safety prop has been
engaged.
• A machine that is damaged or malfunctioning should
immediately be tagged and removed from service.
• Repair any machine damage or malfunction before
operating the machine.
• Unless otherwise specified, perform any troubleshoot-
ing procedure with the machine parked on a flat level
surface, boom stowed, key switch off and key removed,
park brake applied.
• Battery should always be disconnected during replace-
ment of electrical components.
• Keep all support equipment and attachments stowed in
their proper place.
• Use only approved, nonflammable cleaning solvents.

20 1250AJP 3128411
REVISION LOG
January 16, 2006 - Original issue of fault guide for use with P7.0 Software.
August 29, 2006 - Incremental release. Updated and added many procedures.
February 12, 2007 - Fault definitions added.
April 5, 2007 - Cover icon added.