Yanmar 3TNV82A Programming manual

0DTNV-G00600
PRINTED IN JAPAN
ELECTRONIC CONTROL
TROUBLESHOOTING
MANUAL
TROUBLESHOOTING MANUAL
3TNV82A
3TNV82A-B
3TNV84
3TNV84T
3TNV84T-B
3TNV88
3TNV88-B
3TNV88-U
4TNV84
4TNV84T
4TNV84T-Z
4TNV88
4TNV88-B
4TNV88-U
4TNV94L
4TNV98
4TNV98-Z
4TNV98-E
4TNV98T
4TNV98T-Z
4TNV106
4TNV106T

California
Proposition 65 Warning
Diesel engine exhaust and some of its
constituents are known to the state of
California to cause cancer, birth
defects, and other reproductive harm.
California
Proposition 65 Warning
Battery posts, terminals, and related
accessories contain lead and lead
compounds, chemicals known to the
state of California to cause cancer and
reproductive harm.
Wash hands after handling.
Head Office:
Yanmar Co., Ltd.
1-32 Chayamachi, Kita-ku, Osaka 530-8311, Japan
http://www.yanmar.co.jp
Yanmar America Corporation
951 Corporate Grove Drive
Buffalo Grove, IL 60089-4508, U.S.A.
TEL: [phone] FAX: [phone]
http://www.yanmar.com
Yanmar Europe B.V.
Brugplein11, 1332 BS Almere -de Vaart,
The Netherlands.
TEL: [phone] FAX: [phone]
http://www.yanmar.nl
Yanmar Asia (Singapore) Corporation Pte. Ltd.
4 Tuas Lane, Singapore 638613
TEL: [phone] FAX: [phone]
http://www.yanmar.co.jp/yasc/

TNV DI Service Manual 1-1
TNV DI Service Manual Section 1
FAILURE DIAGNOSIS
Page
DTCs (Diagnostic Trouble Codes) General Description.................. 1-3
DTC Code List........................................................................... 1-3
Description Items....................................................................... 1-7
Analog Input Related Failures................................................... 1-8
Pulse Sensor Related Failures................................................ 1-60
Contact Output Related Failures............................................. 1-66
Contact Input Related Failures.............................................. 1-100
Actuators etc.......................................................................... 1-114
E-ECU Internal and Communication Errors........................... 1-122
Method and Procedure of Failure Diagnosis............................... 1-133
Description Items................................................................... 1-133
Analog Input Related Failures............................................... 1-136
Pulse Sensor Related Failures.............................................. 1-164
Contact Output Related Failures........................................... 1-170
Contact Input Related Failures.............................................. 1-187
Actuator Related Failures...................................................... 1-193
ECU Internal and Communication Errors.............................. 1-197
FAILURE INDICATOR LAMP FLASHING PATTERN........... 1-207
Using the Failure Indicator for Failure Diagnosis ........................ 1-208
Flashing Patterns of the Failure Indicator.............................. 1-208
Factor Analysis............................................................................ 1-210
2G-Type Eco-Governor Speed-Fluctuation Factor Analysis . 1-210
2G-Type Eco-Governor Engine
Stalling/Start-Up Inability Factor Analysis.............................. 1-213
2G-Type Eco-Governor Black Smoke Factor Analysis.......... 1-216
Special Service Tools.................................................................. 1-218
Troubleshooting By Measuring Compression Pressure.............. 1-219
Compression Pressure Measurement Method...................... 1-219
Quick Reference Table For Troubleshooting .............................. 1-222
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FAILURE DIAGNOSIS
1-2 TNV DI Service Manual
This Page Intentionally Left Blank
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FAILURE DIAGNOSIS
TNV DI Service Manual 1-3
DTCs (Diagnostic Trouble Codes) General Description
DTCS (DIAGNOSTIC TROUBLE CODES) GENERAL DESCRIPTION
DTC Code List
Clas
sifica
tion DTC Lamp
Flashing
Patterns
Error Item Referenced page
number
Area Status Overview Failure
Diagnosis
Analog Input Related Failures
P1202/4 7 Rack position sensor Error (low voltage) P.1-8 P.1-136
P1203/3 Error (high voltage) P.1-10
P0122/4
5 Accelerator sensor
Error (low voltage) P.1-12 P.1-140P1203/3 Error (high voltage) P.1-14
P0124/2 Intermittent failure P.1-16
P1125/1 Error (foot pedal-close position) P.1-18 P.1-144
P1126/0 Error (foot pedal-open position) P.1-20
P0222/4
1-8 Spare accelerator sensor
Error (low voltage) P.1-22 P.1-148P0223/3 Error (high voltage) P.1-24
P0224/2 Intermittent failure P.1-26
P1225/1 Error (foot pedal-close position) P.1-28 P.1-144
P1226/0 Error (foot pedal-open position) P.1-30
P1227/8 Error (pulse communication) P.1-32 P.1-152
P0222/4 1-9 Atmospheric pressure
sensor
Error (low voltage) P.1-34 P.1-148P0223/3 Error (high voltage) P.1-36
P0224/2 Intermittent failure P.1-38
P0668/4 4-1 ECU Temperature
Sensor
Error (low voltage) P.1-40 P.1-154P0669/3 Error (high voltage) P.1-41
P1644/2 Intermittent failure P.1-42
P0634/0 2-5 ECU Temperature Rise
Alarm P.1-43 P.1-154
P0117/4 4Cooling water
temperature sensor
Error (Low Voltage) P.1-45 P.1-156P0118/3 Error (High Voltage) P.1-47
P0119/2 Intermittent failure P.1-49
P0217/0 3-6 Cooling Water
Temperature Rise Alarm P.1-51 P.1-156
P0642/4 2-4 SENSOR 5V Error (low voltage) P.1-53 P.1-160P0643/3 Error (High Voltage) P.1-54
P1644/2 Intermittent failure P.1-55
P0562/1 2-3 Power supply Voltage Error (Low Voltage) P.1-56 P.1-56
P0563/0 Error (High Voltage) P.1-58 P.1-58
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FAILURE DIAGNOSIS
1-4 TNV DI Service Manual
DTCs (Diagnostic Trouble Codes) General Description
Pulse Sensors
P0340/4 6 Speed Sensor Error P.1-60 P.1-164
P1340/4 1-1 Spare speed sensor Error P.1-62 P.1-167
P0219/0 9 Overspeed Error P.1-64 P.1-64
Contact Output Related Failures
P1222/4 1-7 Rack actuator Relay Error A P.1-66 P.1-170P1223/3 Error B P.1-68
P1224/2 Intermittent failure P.1-70
P1232/4 1-5 Start Assist Relay Error A P.1-72 P.1-174P1233/3 Error B P.1-74
P1234/2 Intermittent failure P.1-76
P1242/4 1-4 CSD solenoid valve Error A P.1-78 P.1-178P1243/3 Error B P.1-80
P1244/2 Intermittent failure P.1-82
P1402/4
1-3 EGR valve
Error A (Step Motor A-Phase) P.1-84
P.1-182
P1403/3 Error B (Step Motor A-Phase) P.1-86
P1412/4 Error A (Step Motor B-Phase) P.1-88
P1413/3 Error B (Step Motor B-Phase) P.1-90
P1422/4 Error A (Step Motor C-Phase) P.1-92
P1423/3 Error B (Step Motor C-Phase) P.1-94
P1432/4 Error A (Step Motor D-Phase) P.1-96
P1433/3 Error B (Step Motor D-Phase) P.1-98
Contact Input Related Failures
P1192/4 2-1 Oil pressure switch Error P.1-100
P.1-187
P1198/1 3-1 Oil Pressure Descend Error P.1-102
P1562/4 2-2 Charge switch Error P.1-104
P1568/1 3-2 Charge Alarm P.1-106
P1217/0 3-3 Abnormal Water Temperature P.1-108
P1101/0 3-4 Air cleaner Clogging Alarm P.1-110
P1151/0 3-5 Oil-water separator Alarm P.1-112
Clas
sifica
tion DTC Lamp
Flashing
Patterns
Error Item Referenced page
number
Area Status Overview Failure
Diagnosis
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FAILURE DIAGNOSIS
TNV DI Service Manual 1-5
DTCs (Diagnostic Trouble Codes) General Description
Actuator Errors
P1212/4
8
Rack actuator Error (low current) P.1-114
P.1-193
P1213/3 Error (high current) P.1-116
P1211/7 Mechanical failure P.1-118
P1214/2 Engine Error P.1-120
ECU inside and Communication Related Failures
P0605/12
4-1 ECU
Internal
Flash ROM Error (Checksum A)
P.1-122
P.1-197
P1605/2 Error (Checksum B)
P1606/2 Error (Checksum C)
P1620/12 Map format Error
P1601/2 EEPROM Error (Checksum)
P0601/12 Error (read/write error)
P.1-123
P1610/12 Sub CPU Error A
P1611/12 Error B
P1612/12 Error C
P0686/4 1-6 Main relay Error P.1-124 P.1-199
U0001/12 1-2 CAN Communication Error P.1-126 P.1-203
U0167/12
4-2 Immobilizer
Error (CAN communication) P.1-128
P.1-205
U1167/8 Error (pulse communication) P.1-130
U0426/2 Error (System) P.1-132
Clas
sifica
tion DTC Lamp
Flashing
Patterns
Error Item Referenced page
number
Area Status Overview Failure
Diagnosis
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FAILURE DIAGNOSIS
1-6 TNV DI Service Manual
DTCs (Diagnostic Trouble Codes) General Description
This Page Intentionally Left Blank
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FAILURE DIAGNOSIS
TNV DI Service Manual 1-7
DTCs (Diagnostic Trouble Codes) General Description
Description Items
DTC Detecting Conditions
Movement at Error occurrence
Estimation of Failure cause/Error condition
Provides descriptive information on possible points of failure, possible direct causes (such as a disconnected sensor
wire), or possible system abnormalities that has indirectly caused the failure (such as abnormally high cooling water
temperature), as can be estimated from the output DTC.
Note: Indicates failures thatmight be related with the output DTC.
Diagnosis Description
Describes methods or procedures of failure diagnosis.
* After sucessful recovery by the replacement of ECU, sensor or actuator, make sure that installing
the previous parts will reproduce the same error.
DTC Code Number DTC Name
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator Check points
1. Precondition for Error detection
2. Error detecting Condition
3. Indicates the pattern in which the failure lamp flashes when the
DTC is output. (For detailed information on various flashing
patterns, see Annex).
This column shows what parts or
items should be checked to identify
the cause of the error.
For details, see "<Diagnosis
Description>."
Error Mode [Operation Continuation] / [Run Under Restrictions] / [Stop Immediately]:
The engine operation after detecting the error is described.
*
[Operation Continuation]:After detecting the error, the system lets the engine
continue to run without any restrictions.
[Run Under Restrictions]:The system lets the engine continue to run but restricts the
High idle speed, engine power, and/or other performance
factors as appropriate.
[Stop Immediately]: The system stops the engine immediately after detecting the
error.When any error is detected before starting the engine, the
starter will not rotate.
Run restricted? Yes/No.: If Yes, this field details how the engine run is restricted when the error has
occurred.
Recovery
Conditions Yes/No.: If Yes, this field describes what conditions must be true for the error mode to be reset.
Remarks This field describes some notes on safety precautions and so on, as appropriate.
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FAILURE DIAGNOSIS
1-8 TNV DI Service Manual
DTCs (Diagnostic Trouble Codes) General Description
Analog Input Related Failures
Rack position sensor
(1) P1202/4: Failure with Rack Position Sensor (Low Voltage)
DTC Detecting Conditions
Movement at Error occurrence
Estimation of Failure cause/Error condition
• The connector may not be properly connected.
• Wiring defect of the harness
•The rack position sensor's signal wires may be disconnected or short-circuited with GND.
•The SENSOR 12V wire may be disconnected or short-circuited with GND (*NOTE).
•The SENSOR GND wire may be short-circuited with POWER SUPPLY (*NOTE).
*NOTE) If the SENSOR 12V wire is short-circuited with GND or SENSOR GND wire is short-circuited with
POWER SUPPLY, the E-ECU's power supply line fuse 10A might be blown.With this fuse blown, the
E-ECU may fail to detect/indicate the error, and to store the error history.
The rack position sensor may be faulty.
•Output defect of the rack position signal by a disconnection or a short circuit of the inner wiring
• The E-ECU internal circuitry may be faulty.
DTC P1202/4 Rack Position Sensor Error (Low Voltage)
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator Check points
1. Key switch ON.
2. The sensor voltage lower limit and below [at E-ECU activation,
engine running]
3. Seven flashes.
Connector
Harness
Rack position sensor
E-ECU
Error Mode [Run Under Restrictions]:
The engine continues to run in on-error engine control mode.
If any error is detected at E-ECU activation, it takes 1 - 10 seconds from the starter
begins to rotate until the engine starts.
Run restricted? Yes: • The High idle speed is restricted to one of the following, whichever smaller:
•80% of the pre-error High idle speed
•150% of the Low idle speed
• The fuel injection rate is restricted.
Recovery
Conditions No.
Remarks The High and Low idle speeds must be equal to those specified in the engine
specifications.
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FAILURE DIAGNOSIS
TNV DI Service Manual 1-9
DTCs (Diagnostic Trouble Codes) General Description
Diagnosis Description
1) Initial diagnosis
with the diagnosis
tool
• Check the fault indication.
• Check the sensor voltage (AD value).
*For details of the method and the procedure of diagnosis, see P.1-136
2) Check of
connectors/wiring • Before beginning your work, be sure to turn off the key switch. • Check that the connector of the rack actuator is correctly inserted.
• Check that the wiring of the rack actuator is not disconnected or the insulation
of the wiring is not peeled.
3)FailureDiagnostic
Work • Check the input voltage of the rack position sensor (voltage of the sensor 12V line).
• Check the harness for correct continuity.
*For details of the method and the procedure of diagnosis, see P.1-136
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FAILURE DIAGNOSIS
1-10 TNV DI Service Manual
DTCs (Diagnostic Trouble Codes) General Description
(2) P1203/3: Failure with Rack Position Sensor (High Voltage)
DTC Detecting Conditions
Movement at Error occurrence
Estimation of Failure cause/Error condition
• The connector may not be properly connected.
• Wiring defect of the harness
•The SENSOR GND wire may be disconnected.
•The rack position sensor signal wire may be short-circuited with POWER SUPPLY.
•The rack actuator wiring may be short-circuited with GND (with engine running).
• The rack position sensor may be faulty.
•Output defect of the rack position signal by a disconnection or a short circuit of the inner wiring
• The rack actuator may be faulty.
•The rack actuator inner wiring may be short-circuited with GND (with engine running).
• The E-ECU internal circuitry may be faulty.
DTC P1202/3 Failure with Rack Position Sensor (High Voltage)
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator Check points
1. Key switch ON.
2. The sensor voltage upper limit and above [at E-ECU activation,
engine running]
3. Seven flashes.
Connector
Harness rack position sensor
Rack actuator
E-ECU
Detection at the engine start Detection at the engine running
Error Mode [Run Under Restrictions]:
Start the engine in on-error engine control
mode.
It takes 1 to 10 seconds from the starter’s
rotation to the engine start.
[Stop Immediately]:
The engine stops running.
Run restricted? Yes: • The High idle is restricted to one of
the following, whichever smaller:
•80% of the pre-error High idle speed
•150% of the Low idle speed
• The fuel injection rate is restricted.
Yes: The rack actuator relay is turned
OFF,andtherackpositionisforcibly
set to the engine stop position.
Recovery
Conditions No. No.
Remarks The High and Low idle speeds must be
equal to those specified in the engine
specifications.
TNV_DI_SM_A4-Troubleshooting.book 10 ページ ２００７年１１月１５日 木曜日 午後５時２７分

FAILURE DIAGNOSIS
TNV DI Service Manual 1-11
DTCs (Diagnostic Trouble Codes) General Description
Diagnosis Description
1) Initial diagnosis
with the diagnosis
tool
• Check the fault indication.
• Check the sensor voltage (AD value).
*For details of the method and the procedure of diagnosis, see P.1-136
2) Check of
connectors/wiring • Before beginning your work, be sure to turn off the key switch. • Check that the connector of the rack actuator is correctly inserted.
• Check that the wiring of the rack actuator is not disconnected or the insulation
of the wiring is not peeled.
3)FailureDiagnostic
Work • Check the input voltage of the rack position sensor (voltage of the sensor 12V line).
• Check the harness for correct continuity.
*For details of the method and the procedure of diagnosis, see P.1-136
TNV_DI_SM_A4-Troubleshooting.book 11 ページ ２００７年１１月１５日 木曜日 午後５時２７分

FAILURE DIAGNOSIS
1-12 TNV DI Service Manual
DTCs (Diagnostic Trouble Codes) General Description
Accelerator sensor
(1) P0122/4: Accelerator Sensor Error (Low Voltage)
DTC Detecting Conditions
Movement at Error occurrence
Estimation of Failure cause/Error condition
• The connector may not be properly connected.
• Wiring defect of the harness
•The accelerator sensor's signal wires may be disconnected or short-circuited with GND.
•The SENSOR 5V wire may be disconnected or short-circuited with GND.
•The SENSOR GND wire may be short-circuited with POWER SUPPLY (*NOTE).
*NOTE)Ifthe SENSORGNDwireisshort-circuitedwithPOWERSUPPLY,theE-ECU'spowersupplylinefuse
10A mightbeblown.With thisfuseblown,theE-ECU mayfailtodetect/indicatetheerror,andtostore
the error history.
• The accelerator sensor may be faulty.
•Sensor output defect by a disconnection of the accelerator sensor inner wiring or a sliding resistance
increase
• The E-ECU internal circuitry may be faulty.
DTC P0122/4 Accelerator Sensor Error (Low Voltage)
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator Check points
1. Key switch ON.
2. Sensor voltage 0.2 [V] or lower.
3. Five flashes.
Harness
Accelerator sensor
Spare Accelerator Sensor Function
Unavailable Available
Error Mode [Run Under Restrictions]:
The engine runs at a constant rotational
speed.
[Stop Immediately]:
The engine continues to run using the
spare accelerator sensor instead.
Run restricted? Yes: The target speed is set to the "on-
error target speed (standard value:
1500[min-1])" or “pre-error target
speed”.
No.
Recovery
Conditions Yes: This error will be automatically reset when a normal voltage (0.2 to
4.6[V]) is input.
Yes: This error will be automatically reset
when a normal voltage (0.2 to
4.6[V]) is input.
Remarks
TNV_DI_SM_A4-Troubleshooting.book 12 ページ ２００７年１１月１５日 木曜日 午後５時２７分

FAILURE DIAGNOSIS
TNV DI Service Manual 1-13
DTCs (Diagnostic Trouble Codes) General Description
Diagnosis Description
1) Initial diagnosis
with the diagnosis
tool
• Check the fault indication.
• Check the sensor voltage.
*For details of the method and the procedure of diagnosis, see P.1-140
2) Check of
connectors/wiring • Before beginning your work, be sure to turn off the key switch. • Check that the connector of the accelerator sensor is correctly inserted.
• Check that the wiring of the accelerator sensor is not disconnected or the
insulation of the wiring is not peeled.
3)FailureDiagnostic
Work • Check the resistance value of the accelerator sensor. • Check the harness for correct continuity.
• Check the output voltage of the accelerator sensor.
*For details of the method and the procedure of diagnosis, see P.1-140
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FAILURE DIAGNOSIS
1-14 TNV DI Service Manual
DTCs (Diagnostic Trouble Codes) General Description
(2) P0123/3: Accelerator Sensor Error (High Voltage)
DTC Detecting Conditions
Movement at Error occurrence
Estimation of Failure cause/Error condition
• The connector may not be properly connected.
• Wiring defect of the harness
•The SENSOR GND wire may be disconnected.
•The sensor signal wire may be short-circuited with POWER SUPPLY.
• The accelerator sensor may be faulty.
•Sensor output defect by a short circuit with power supply ofthe accelerator sensor inner wiring
• The E-ECU internal circuitry may be faulty.
DTC P0123/3 Accelerator Sensor Error (High Voltage)
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator Check points
1. Key switch ON.
2. Sensor voltage 4.6 [V] or higher.
3. Five flashes.
Harness
Accelerator sensor
Spare Accelerator Sensor Function
Unavailable Available
Error Mode [Run Under Restrictions]:
The engine runs at a constant rotational
speed.
[Stop Immediately]:
The engine continues to run using the
spare accelerator sensor instead.
Run restricted? Yes: The target speed is set to the "on-
error target speed (standard value:
1500[min-1])" or “pre-error target
speed”.
No.
Recovery
Conditions Yes: This error will be automatically reset when a normal voltage (0.2 to
4.6[V]) is input.
Yes: This error will be automatically reset
when a normal voltage (0.2 to
4.6[V]) is input.
Remarks
TNV_DI_SM_A4-Troubleshooting.book 14 ページ ２００７年１１月１５日 木曜日 午後５時２７分

FAILURE DIAGNOSIS
TNV DI Service Manual 1-15
DTCs (Diagnostic Trouble Codes) General Description
Diagnosis Description
1) Initial diagnosis
with the diagnosis
tool
• Check the fault indication.
• Check the sensor voltage.
*For details of the method and the procedure of diagnosis, see P.1-140
2) Check of
connectors/wiring • Before beginning your work, be sure to turn off the key switch. • Check that the connector of the accelerator sensor is correctly inserted.
• Check that the wiring of the accelerator sensor is not disconnected or the
insulation of the wiring is not peeled.
3)FailureDiagnostic
Work • Check the resistance value of the accelerator sensor. • Check the harness for correct continuity.
• Check the output voltage of the accelerator sensor.
*For details of the method and the procedure of diagnosis, see P.1-140
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FAILURE DIAGNOSIS
1-16 TNV DI Service Manual
DTCs (Diagnostic Trouble Codes) General Description
(3) P0124/2: Intermittent Failure with Accelerator Sensor
DTC Detecting Conditions
Movement at Error occurrence
Estimation of Failure cause/Error condition
• The connector may not be properly connected.
• Wiring defect of the harness
•Accelerator sensor signal wire may be disconnected, or short-circuited with GND or power supply.
•Sensor 5V wire may be disconnected, or short-circuited with GND or power supply.
•Sensor GND wire may be disconnected.
• The accelerator sensor may be faulty.
•Inner wiring may bedisconnected or short-circuited
DTC P0124/2 Intermittent Failure with Accelerator Sensor
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator Check points
1. Engine running.
2. Unconfirmed error detected 10 times.
3: Does not flash.
Connector
Harness
Accelerator sensor
Error Mode [Run Under Restrictions]:
After detecting the error, the system lets the engine continue to run without any
restrictions.
Run restricted? No.
Recovery
Conditions No.
Remarks
TNV_DI_SM_A4-Troubleshooting.book 16 ページ ２００７年１１月１５日 木曜日 午後５時２７分

FAILURE DIAGNOSIS
TNV DI Service Manual 1-17
DTCs (Diagnostic Trouble Codes) General Description
Diagnosis Description
1) Initial diagnosis
with the diagnosis
tool
• Check the fault indication.
• Check the sensor voltage.
*For details of the method and the procedure of diagnosis, see P.1-140
2) Check of
connectors/wiring • Before beginning your work, be sure to turn off the key switch. • Check that the connector of the accelerator sensor is correctly inserted.
• Check that the wiring of the accelerator sensor is not disconnected or the
insulation of the wiring is not peeled.
3)FailureDiagnostic
Work • Check the resistance value of the accelerator sensor. • Check the harness for correct continuity.
• Check the output voltage of the accelerator sensor.
*For details of the method and the procedure of diagnosis, see P.1-140
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FAILURE DIAGNOSIS
1-18 TNV DI Service Manual
DTCs (Diagnostic Trouble Codes) General Description
(4) P0123/1: Accelerator Sensor Error (foot pedal-close position)
DTC Detecting Conditions
Movement at Error occurrence
Estimation of Failure cause/Error condition
• The connector may not be properly connected.
• Wiring defect of the harness
•The wiring for the foot pedal Normally Closed switch may be disconnected.
•The wiring for the foot pedal Normally Open switch may be short-circuited withGND.
• The foot pedal may be faulty.
•The foot pedal inner wiring may be disconnected or short-circuited with GND.
• The E-ECU internal circuitry may be faulty.
DTC P1125/1 Accelerator Sensor Error (foot pedal-close position)
1 - Precondition; 2 - Detecting condition(s);
3 - Flashing pattern of failure indicator Check points
1. Key switch ON.
2. With sensor voltage at or below 0.65[V], foot pedal Normally
Open switch detected being ON or foot pedal Normally Closed
Switch detected being OFF.
3. Five flashes.
Harness
Foot pedal
Error Mode [Run Under Restrictions]:
The engine runs at a constant rotational speed.
Run restricted? Yes: The target speed is set to the "on-error target speed (standard value: 1500[min-1])"
or “pre-error target speed”.
Recovery
Conditions No.
Remarks
TNV_DI_SM_A4-Troubleshooting.book 18 ページ ２００７年１１月１５日 木曜日 午後５時２７分