Dodge Neon 2001 User manual

TABLE OF CONTENTS
1.0 INTRODUCTION .........................................................1
1.1 SYSTEM COVERAGE ...............................................1
1.2 SIX-STEP TROUBLESHOOTING PROCEDURE ..........................1
2.0 IDENTIFICATION OF SYSTEM .............................................1
3.0 SYSTEM DESCRIPTION AND FUNCTIONAL OPERATION ......................1
3.1 AIRBAG SYSTEM ...................................................1
3.1.1 DRIVER AIRBAG MODULE (DAB)...............................2
3.1.2 CLOCKSPRING..............................................2
3.1.3 PASSENGER AIRBAG MODULE (PAB) ..........................3
3.1.4 SIDE IMPACT AIRBAG CONTROL MODULES (SIACM) .............3
3.1.5 SEAT AIRBAG MODULES .....................................3
3.1.6 ACM/SIACM DIAGNOSTIC TROUBLE CODES ....................4
3.1.6.1 ACTIVE CODES .............................................4
3.1.6.2 STORED CODES ............................................4
3.2 AUDIO SYSTEM ....................................................4
3.3 EXTERIOR LIGHTING ...............................................5
3.4 ELECTRO/MECHANICAL INSTRUMENT CLUSTER (EMIC).................5
3.5 INTERIOR LIGHTING ................................................5
3.6 REMOTE KEYLESS ENTRY MODULE ..................................5
3.6.1 VEHICLE THEFT SECURITY SYSTEM...........................6
3.6.2 POWER DOOR LOCKS .......................................6
3.6.2.1 CENTRAL LOCKING..........................................6
3.6.2.2 ROLLING (AUTOMATIC) DOOR LOCKS..........................6
3.6.2.3 DOOR LOCK INHIBIT.........................................6
3.6.2.4 POWER DECKLID RELEASE ..................................6
3.6.2.5 PANIC MODE (IF EQUIPPED) ..................................6
3.7 VEHICLE COMMUNICATION..........................................6
3.8 USING THE DRBIIIT.................................................8
3.8.1 DRBIIITERROR MESSAGES AND BLANK SCREEN ...............8
3.8.2 DRBIIITDOES NOT POWER UP................................8
3.8.3 DISPLAY IS NOT VISIBLE .....................................8
4.0 DISCLAIMERS, SAFETY, WARNINGS .......................................8
4.1 DISCLAIMERS......................................................8
4.2 SAFETY...........................................................8
4.2.1 TECHNICIAN SAFETY INFORMATION...........................8
4.2.2 VEHICLE PREPARATION FOR TESTING.........................8
4.2.3 SERVICING SUB-ASSEMBLIES ................................9
4.2.4 DRBIIITSAFETY INFORMATION................................9
4.3 WARNINGS ........................................................9
4.3.1 VEHICLE DAMAGE WARNINGS ................................9
4.3.2 ROAD TESTING A COMPLAINT VEHICLE........................9
5.0 REQUIRED TOOLS AND EQUIPMENT ......................................9
6.0 GLOSSARY OF ACRONYMS .............................................10
7.0 DIAGNOSTIC INFORMATION AND PROCEDURES ...........................11
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TABLE OF CONTENTS - Continued
AIRBAG
ACM ACCELEROMETER - ACTIVE.........................................12
ACM ACCELEROMETER - STORED .......................................12
ACM INTERNAL 1 - ACTIVE ..............................................12
ACM INTERNAL 1 - STORED .............................................12
ACM OUTPUT DRIVER 1 - ACTIVE ........................................12
ACM OUTPUT DRIVER1-STORED .......................................12
ACM STORED ENERGY FIRING 1 - ACTIVE.................................12
ACM STORED ENERGY FIRING1-STORED ...............................12
ACM STORED ENERGY LOGIC - ACTIVE...................................12
ACM STORED ENERGY LOGIC - STORED..................................12
ACM, NO PCI TRANSMISSION - ACTIVE ...................................12
ACM, SAFING SENSOR - ACTIVE .........................................12
ACM, SAFING SENSOR - STORED ........................................12
ACM NOT CONFIGURED FOR SAB - ACTIVE ...............................15
ACM NOT CONFIGURED FOR SAB - STORED ..............................17
ACM, CLUSTER MESSAGE MISMATCH - ACTIVE ............................18
ACM, CLUSTER MESSAGE MISMATCH - STORED...........................19
ACM, DRIVER SQUIB CIRCUIT OPEN - STORED ............................19
ACM, DRIVER SQUIB CIRCUIT SHORT - STORED ...........................19
ACM, DRIVER SQUIB SHORT TO BATTERY - STORED .......................19
ACM, DRIVER SQUIB SHORT TO GROUND - STORED .......................19
ACM, LOSS OF IGNITION RUN-START - STORED............................19
ACM, NO CLUSTER MESSAGE - STORED..................................19
ACM, NO PCI TRANSMISSION - STORED ..................................19
ACM, PASSENGER SQUIB CIRCUIT OPEN - STORED ........................19
ACM, PASSENGER SQUIB CIRCUIT SHORT - STORED.......................19
ACM, PASSENGER SQUIB SHORT TO BATTERY - STORED...................19
ACM, PASSENGER SQUIB SHORT TO GROUND - STORED ...................19
ACM, WARNING LAMP CIRCUIT OPEN/SHORT - STORED ....................19
ACM, DRIVER SQUIB CIRCUIT OPEN - ACTIVE .............................22
ACM, DRIVER SQUIB CIRCUIT SHORT - ACTIVE ............................25
ACM, DRIVER SQUIB SHORT TO BATTERY - ACTIVE ........................28
ACM, DRIVER SQUIB SHORT TO GROUND - ACTIVE ........................31
ACM, INTERROGATE LEFT SIACM - (ACTIVE ...............................34
ACM, INTERROGATE LEFT SIACM - STORED...............................35
ACM, NO LEFT SIACM MESSAGE - STORED ...............................35
LEFT SIACM, NO PCI TRANSMISSION - STORED............................35
LEFT SIACM, SEAT SQUIB CIRCUIT OPEN - STORED........................35
LEFT SIACM, SEAT SQUIB CIRCUIT SHORT - STORED.......................35
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY - STORED...................35
LEFT SIACM, SEAT SQUIB SHORT TO GROUND - STORED...................35
ACM, INTERROGATE RIGHT SIACM - ACTIVE...............................37
ACM, INTERROGATE RIGHT SIACM - STORED..............................38
ACM, NO RIGHT SIACM MESSAGE - STORED ..............................38
RIGHT SIACM, NO PCI TRANSMISSION - STORED ..........................38
RIGHT SIACM, SEAT SQUIB CIRCUIT OPEN - STORED.......................38
RIGHT SIACM, SEAT SQUIB CIRCUIT SHORT - STORED .....................38
RIGHT SIACM, SEAT SQUIB SHORT TO BATTERY - STORED .................38
RIGHT SIACM, SEAT SQUIB SHORT TO GROUND - STORED..................38
ACM, LOSS OF IGNITION RUN ONLY - ACTIVE..............................40
ACM, LOSS OF IGNITION RUN-START - ACTIVE.............................43
ACM, NO CLUSTER MESSAGE - ACTIVE...................................46
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ACM, NO LEFT SIACM MESSAGE - ACTIVE.................................47
ACM, NO RIGHT SIACM MESSAGE (ACTIVE) ...............................48
ACM, PASSENGER SQUIB CIRCUIT OPEN - ACTIVE .........................49
ACM, PASSENGER SQUIB CIRCUIT SHORT - ACTIVE........................52
ACM, PASSENGER SQUIB SHORT TO BATTERY - ACTIVE ....................54
ACM, PASSENGER SQUIB SHORT TO GROUND - ACTIVE ....................56
ACM, WARNING LAMP CIRCUIT OPEN/SHORT - ACTIVE .....................58
LEFT SIACM ACCELEROMETER 1 - ACTIVE ................................59
LEFT SIACM ACCELEROMETER1-STORED ...............................59
LEFT SIACM ACCELEROMETER 2 - ACTIVE ................................59
LEFT SIACM ACCELEROMETER2-STORED ...............................59
LEFT SIACM INTERNAL 1 - ACTIVE........................................59
LEFT SIACM INTERNAL 1 - STORED ......................................59
LEFT SIACM OUTPUT DRIVER 1 - ACTIVE .................................59
LEFT SIACM OUTPUT DRIVER1-STORED ................................59
LEFT SIACM, LOSS OF IGNITION RUN-START - ACTIVE......................59
LEFT SIACM, NO PCI TRANSMISSION - ACTIVE.............................59
LEFT SIACM, SEAT SQUIB CIRCUIT OPEN - ACTIVE.........................61
LEFT SIACM, SEAT SQUIB CIRCUIT SHORT- ACTIVE ........................64
LEFT SIACM, SEAT SQUIB SHORT TO BATTERY - ACTIVE....................66
LEFT SIACM, SEAT SQUIB SHORT TO GROUND - ACTIVE ....................69
RIGHT SIACM ACCELEROMETER 1 - ACTIVE ...............................71
RIGHT SIACM ACCELEROMETER1-STORED..............................71
RIGHT SIACM ACCELEROMETER 2 - ACTIVE ...............................71
RIGHT SIACM ACCELEROMETER2-STORED..............................71
RIGHT SIACM INTERNAL 1 - ACTIVE ......................................71
RIGHT SIACM INTERNAL 1 - STORED .....................................71
RIGHT SIACM OUTPUT DRIVER 1 - ACTIVE ................................71
RIGHT SIACM OUTPUT DRIVER1-STORED ...............................71
RIGHT SIACM, LOSS OF IGNITION RUN-START - ACTIVE.....................71
RIGHT SIACM, NO PCI TRANSMISSION - ACTIVE ...........................71
RIGHT SIACM, SEAT SQUIB CIRCUIT OPEN - ACTIVE........................73
RIGHT SIACM, SEAT SQUIB CIRCUIT SHORT - ACTIVE ......................75
RIGHT SIACM, SEAT SQUIB SHORT TO BATTERY - ACTIVE...................77
RIGHT SIACM, SEAT SQUIB SHORT TO GROUND - ACTIVE...................79
*AIRBAG INDICATOR ON WITHOUT ACTIVE TROUBLE CODES................81
AUDIO
ALL OUTPUTS SHORTED................................................82
AM SECTION ..........................................................85
CASS ERROR..........................................................85
CASSETTE COMMUNICATION FAULT......................................85
CASSETTE EJECT FAILURE..............................................85
CASSETTE LOADING FAILURE ...........................................85
CASSETTE TAPE TENSION HIGH .........................................85
CASSETTE TAPE TENSION LOW..........................................85
CD ERROR ............................................................85
CD MECHANICAL FAILURE ..............................................85
FM SECTION...........................................................85
MICRO OUTPUT FAILURE ...............................................85
RADIO ERROR .........................................................85
*AM/FM SWITCH INOPERATIVE...........................................85
*ANY STATION PRESET SWITCH INOPERATIVE.............................85
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*BALANCE INOPERATIVE ................................................85
*CD EJECT SWITCH INOPERATIVE........................................85
*EQUALIZER INOPERATIVE ..............................................85
*FADER INOPERATIVE ..................................................85
*FF/RW SWITCH INOPERATIVE...........................................85
*HOUR/MINUTE SWITCHES INOPERATIVE .................................85
*PAUSE/PLAY SWITCH INOPERATIVE .....................................85
*PWR SWITCH INOPERATIVE ............................................85
*SCAN SWITCH INOPERATIVE............................................85
*SEEK SWITCH INOPERATIVE............................................85
*SET SWITCH INOPERATIVE .............................................85
*TAPE EJECT SWITCH INOPERATIVE......................................85
*TIME SWITCH INOPERATIVE ............................................85
*TUNE SWITCH INOPERATIVE............................................85
CD CHANGER MECHANICAL FAILURE.....................................88
CD CHANGER PLAY FAILURE ............................................89
CD CHANGER READ FAILURE............................................89
IMPROPER DISK IN CD CHANGER........................................89
CD CHANGER POWER SUPPLY TOO HIGH.................................90
CD CHANGER TEMPERATURE HIGH ......................................91
CD CHANGER TEMPERATURE LOW ......................................91
CD PLAY FAILURE ......................................................92
CD READ FAILURE .....................................................92
IMPROPER DISK IN CD..................................................92
CD TEMPERATURE HIGH................................................93
CD TEMPERATURE LOW ................................................93
FRONT OUTPUT SHORT.................................................94
LEFT OUTPUT SHORT ..................................................97
NO ANTENNA CONNECTION ............................................100
NO VIN RECEIVED.....................................................101
VIN MISMATCH........................................................101
POWER SUPPLY TOO HIGH.............................................102
REAR OUTPUT SHORT.................................................103
RIGHT OUTPUT SHORT ................................................105
COMMUNICATION
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM INSTRUMENT CLUSTER . .108
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM RKE....................110
*BUS +/- SIGNALS OPEN OR NO RESPONSE FROM SENTRY KEY IMMOBILIZER
MODULE .............................................................112
*NO RESPONSE FROM ACM ............................................114
*NO RESPONSE FROM CONTROLLER ANTILOCK BRAKE ...................116
*NO RESPONSE FROM LEFT SIACM .....................................118
*NO RESPONSE FROM PCM (PCI BUS)...................................120
*NO RESPONSE FROM PCM (SCI ONLY)..................................121
*NO RESPONSE FROM RADIO ..........................................124
*NO RESPONSE FROM RIGHT SIACM ....................................126
*NO RESPONSE FROM TRANSMISSION CONTROL MODULE ................128
*PCI BUS COMMUNICATION FAILURE ....................................131
EXTERIOR LIGHTING
*HIGH BEAM HEADLAMPS WILL NOT TRN ON .............................133
*HIGH BEAM HEADLAMPS WILL NOT TURN OFF...........................135
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*LOW BEAM HEADLAMPS WILL NOT TURN OFF ...........................136
*LOW BEAM HEADLAMPS WILL NOT TRN ON .............................137
INSTRUMENT CLUSTER
ABS MESSAGE NOT RECEIVED .........................................139
ACM MESSAGE NOT RECEIVED.........................................140
FUEL LEVEL SENSOR OPEN ............................................141
FUEL LEVEL SENSOR SHORT...........................................143
PANEL DIMMER OPEN .................................................145
SBEC MESSAGE NOT RECEIVED........................................147
SKIM MESSAGE NOT RECEIVED ........................................148
*ALL GAUGES INOPERATIVE............................................149
*ANY PCI BUS INDICATOR INOPERATIVE .................................151
*BRAKE INDICATOR ALWAYS ON ........................................152
*BRAKE INDICATOR INOPERATIVE.......................................154
*FRONT FOG LAMP INDICATOR INOPERATIVE ............................156
*FUEL GAUGE INACCURATE ............................................157
*HIGH BEAM INDICATOR INOPERATIVE...................................158
*INSTRUMENT CLUSTER DIMMING INOPERATIVE..........................159
*ONE GAUGE INOPERATIVE ............................................160
*REAR FOG LAMP INDICATOR INOPERATIVE - BUX ONLY...................161
*SEATBELT INDICATOR NOT OPERATING PROPERLY ......................162
*VF DISPLAY INOPERATIVE .............................................164
INTERIOR LIGHTING
*COURTESY LAMPS INOPERATIVE - ALL LAMPS...........................165
*COURTESY LAMPS ON AT ALL TIMES ...................................166
*ILLUMINATED ENTRY INOPERATIVE.....................................169
POWER DOOR LOCKS/RKE
*ALL DOOR LOCKS INOPERATIVE .......................................170
*ALL DOORS EXCEPT DRIVER FAIL TO LOCK AND UNLOCK.................174
*ALL DOORS EXCEPT DRIVER FAIL TO UNLOCK...........................175
*ALL DOORS FAIL TO LOCK.............................................176
*ALL LOCKS INOPERATIVE FROM A DOOR LOCK SWITCH ..................178
*AUTOMATIC DOOR LOCKS INOPERATIVE ................................180
*DECKLID SOLENOID INOPERATIVE .....................................181
*DOORS LOCKABLE WITH KEY IN IGNITION & DRIVER DOOR OPEN .........182
*DRIVER DOOR FAILS TO LOCK & UNLOCK...............................184
*DRIVER DOOR FAILS TO UNLOCK ......................................186
*ONE PASSENGER DOOR FAILS TO LOCK & UNLOCK......................187
*RKE INOPERATIVE....................................................188
VEHICLE THEFT/SECURITY
HOOD AJAR SWITCH MISSING ..........................................189
VTSS PREVIOUSLY ENABLED...........................................191
*HEADLAMPS FAIL TO FLASH DURING ALARM ............................192
*HORN FAILS TO SOUND DURING ALARM ................................193
*INTRUSION SENSOR CANNOT BE DISABLED.............................194
*INTRUSION SENSOR FAILS TO TRIP VTSS ...............................195
*INTRUSION SENSOR REPEATEDLY TRIGGERS VTSS......................197
*OPEN DRIVER DOOR FAILS TO TRIP ALARM .............................198
*OPEN PASSENGER DOOR FAILS TO TRIP ALARM.........................199
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TABLE OF CONTENTS - Continued
*PARK LAMPS FAIL TO FLASH DURING ALARM ............................202
*VTSS FAILS TO ARM/DISARM FROM DRIVER DOOR CYLINDER LOCK
SWITCH..............................................................203
*VTSS FAILS TO ARM/DISARM FROM PASSENGER DOOR CYLINDER LOCK
SWITCH..............................................................204
*VTSS INDICATOR FAILS TO FLASH......................................205
*VTSS INDICATOR STAYS ON STEADY DURING ARMING....................206
*VTSS SIREN INOPERATIVE ............................................208
VERIFICATION TESTS
VERIFICATION TESTS..................................................210
8.0 COMPONENT LOCATIONS..............................................215
8.1 AIRBAG SYSTEM.................................................215
8.1.1 AIRBAG CONTROL MODULE (ACM) ..........................215
8.1.2 AIRBAG MODULE (DRIVER).................................215
8.1.3 AIRBAG MODULE (PASSENGER) ............................215
8.1.4 CLOCKSPRING............................................216
8.1.5 SIDE IMPACT AIRBAG CONTROL MODULE (SIACM) ............216
8.2 DATA LINK CONNECTOR ..........................................216
8.3 FUSE BLOCK ....................................................217
8.4 INSTRUMENT CLUSTER...........................................217
8.4.1 BASE CLUSTER...........................................217
8.4.2 PREMIUM CLUSTER .......................................217
8.5 POWER DOOR LOCKS ............................................218
8.5.1 REMOTE KEYLESS ENTRY MODULE .........................218
8.5.2 DECKLID RELEASE SOLENOID..............................218
8.5.3 DOOR LOCK MOTOR ......................................218
8.6 VEHICLE COMMUNICATION........................................219
8.6.1 CONTROLLER ANTILOCK BRAKE MODULE ...................219
8.6.2 POWERTRAIN CONTROL MODULE...........................219
8.6.3 SENTRY KEY IMMOBILIZER MODULE (SKIM) ..................219
8.7 VEHICLE THEFT SECURITY........................................220
8.7.1 REMOTE KEYLESS ENTRY MODULE .........................220
8.7.2 HOOD AJAR SWITCH ......................................220
8.7.3 DOOR CYLINDER LOCK SWITCH ............................220
8.7.4 DECKLID SECURITY SWITCH ...............................221
9.0 CONNECTOR PINOUTS ................................................223
A/C-HEATER BLOWER MOTOR - BLACK 2 WAY ............................223
A/C-HEATER CONTROL - GRAY 7 WAY ...................................223
AIRBAG CONTROL MODULE - YELLOW 23 WAY ...........................223
BLOWER MOTOR RESISTOR BLOCK - BLACK 10 WAY......................224
C208 - YELLOW (SEAT SIDE)............................................224
C208 - YELLOW (SIDE AIRBAG JUMPER SIDE).............................224
C209 - YELLOW (SIDE AIRBAG JUMPER SIDE).............................224
C209 - YELLOW (SEAT SIDE)............................................224
CLOCKSPRING - GREEN 7 WAY .........................................225
CONTROLLER ANTILOCK BRAKE - BLACK 25 WAY.........................225
DATA LINK CONNECTOR - BLACK 16 WAY ................................226
DECKLID RELEASE SWITCH (POWER RELEASE) - BLACK 2 WAY ............226
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TABLE OF CONTENTS - Continued
DECKLID SECURITY SWITCH (KNOCK OUT) - GRAY 2 WAY .................226
DECKLID SOLENOID - BLACK 2 WAY.....................................226
DOME LAMP (EXCEPT BUILT-UP-EXPORT) - BLACK 3 WAY..................227
DOME LAMP/INTRUSION SENSOR (BUILT-UP-EXPORT) - NATURAL 4 WAY . . . .227
DRIVER AIRBAG - YELLOW 2 WAY .......................................227
DRIVER CYLINDER LOCK SWITCH - BLACK 2 WAY.........................227
DRIVER DOOR AJAR SWITCH-2WAY...................................228
DRIVER DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY................228
DRIVER DOOR LOCK SWITCH - BLACK 3 WAY ............................228
DRIVER POWER MIRROR (LHD) - GRAY 7 WAY............................228
DRIVER POWER MIRROR (RHD) - BLUE 7 WAY............................229
FUEL PUMP MODULE - LIGHT GRAY 4 WAY ...............................229
HEADLAMP LEVELING SWITCH (BUILT-UP-EXPORT) - BLACK 4 WAY .........229
HIGH NOTE HORN (DUAL HORNS) - BLACK 2 WAY.........................229
HOOD AJAR SWITCH - BLACK 2 WAY ....................................230
IGNITION SWITCH - BLACK 10 WAY......................................230
INSTRUMENT CLUSTER - BLACK 26 WAY.................................231
FUSES (LHD) .........................................................233
CIRCUIT BREAKERS (LHD) .............................................233
FUSES (RHD) .........................................................235
CIRCUIT BREAKERS (RHD) .............................................235
LEFT FRONT DOOR SPEAKER - BLACK 2 WAY ............................236
LEFT INSTRUMENT PANEL SPEAKER - BLACK 2 WAY ......................236
LEFT REAR DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY.............236
LEFT REAR SPEAKER - BLACK 2 WAY ...................................236
LEFT SEAT AIRBAG-2WAY............................................236
LEFT SIDE IMPACT AIRBAG CONTROL MODULE-8WAY...................237
LOW NOTE HORN - BLACK 2 WAY .......................................237
MULTI-FUNCTION SWITCH - GRAY 20 WAY................................238
PASSENGER AIRBAG - YELLOW 4 WAY...................................238
PASSENGER CYLINDER LOCK SWITCH - BLACK 2 WAY ....................239
PASSENGER DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY ...........239
PASSENGER DOOR LOCK SWITCH - BLACK 3 WAY ........................239
PASSENGER POWER MIRROR (LHD) - GRAY 7 WAY........................239
PASSENGER POWER MIRROR (RHD) - BLUE 7 WAY .......................240
FUSES (PDC) .........................................................242
A/C COMPRESSOR CLUTCH RELAY......................................242
AUTOMATIC SHUT DOWN RELAY........................................242
ENGINE STARTER MOTOR RELAY .......................................242
FUEL PUMP RELAY ....................................................243
HORN RELAY .........................................................243
MANIFOLD TUNING VALVE RELAY (RT PACKAGE)..........................243
RADIATOR FAN RELAY .................................................243
TRANSMISSION CONTROL RELAY (EATX).................................243
POWER MIRROR SWITCH (LHD) - GRAY 10 WAY...........................244
POWER MIRROR SWITCH (RHD) - GRAY 10 WAY ..........................244
POWERTRAIN CONTROL MODULE (1.6L) - 90 WAY.........................245
POWERTRAIN CONTROL MODULE C1 (2.0L) - BLACK 40 WAY ...............246
POWERTRAIN CONTROL MODULE C2 (2.0L) - BLACK 40 WAY ...............247
RADIO C1 - BLACK 7 WAY ..............................................248
RADIO C2 - GRAY 7 WAY ...............................................248
RADIO C3 - NATURAL 2 WAY............................................248
RADIO C4 - BLACK 8 WAY ..............................................248
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TABLE OF CONTENTS - Continued
REMOTE KEYLESS ENTRY MODULE - BLACK 26 WAY......................249
RIGHT FRONT DOOR SPEAKER - BLACK 2 WAY ...........................249
RIGHT HEADLAMP (BUILT-UP-EXPORT)-3WAY...........................250
RIGHT HEADLAMP (EXCEPT BUILT-UP-EXPORT) - BLACK 3 WAY.............250
RIGHT INSTRUMENT PANEL SPEAKER - BLACK 2 WAY .....................250
RIGHT REAR DOOR LOCK MOTOR/AJAR SWITCH - BLACK 4 WAY ...........250
RIGHT REAR SPEAKER - BLACK 2 WAY ..................................251
RIGHT SEAT AIRBAG-2WAY...........................................251
RIGHT SIDE IMPACT AIRBAG CONTROL MODULE-8WAY..................251
RKE ANTENNA (JAPAN) - BLACK 2 WAY ..................................251
SENTRY KEY IMMOBILIZER MODULE - BLACK 6 WAY ......................251
SIREN (BUILT-UP-EXPORT)-4WAY......................................252
SUNROOF CONTROL MODULE-8WAY..................................252
SUNROOF MOTOR - BLACK 3 WAY ......................................252
SUNROOF SWITCH - BLACK 3 WAY......................................252
SUNROOF VENT SWITCH-3WAY.......................................252
TRANSMISSION CONTROL MODULE (EATX) - BLACK 60 WAY ...............253
10.0 SCHEMATIC DIAGRAMS................................................255
10.1 AIRBAG SYSTEM.................................................255
10.2 AUDIO SYSTEM ..................................................256
10.2.1 CD CHANGER.............................................257
10.3 EXTERIOR LIGHTING - BUX (HEADLAMPS)...........................257
10.4 INSTRUMENT CLUSTER .........................................258
10.5 INTERIOR LIGHTING ............................................259
10.6 POWER DOOR LOCKS/RKE ......................................260
10.7 VEHICLE COMMUNICATION........................................261
10.7.1 PCM COMMUNICATION ...................................262
10.8 VEHICLE THEFT SECURITY SYSTEM ...............................263
10.8.1 THATCHAM SYSTEM ......................................263
10.8.2 BASE SYSTEM ............................................264
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1.0 INTRODUCTION
The procedures contained in this manual include
all the specifications, instructions and graphics
needed to diagnose 2001 body system problems. The
diagnostics in this manual are based on the failure
condition or symptom being present at the time of
diagnosis.
Please follow the recommendations below when
choosing your diagnostic path.
1. First make sure the DRBIIItis communicating
with the appropriate modules; i.e., if the
DRBIIItdisplays a ‘‘No Response’’ or “Bus +/-
signal open” condition, you must diagnose that
first.
2. Read DTC’s (diagnostic trouble codes) with the
DRBIIIt.
3. If no DTC’s are present, identify the customer
complaint.
4. Once the DTC or customer complaint is identi-
fied, locate the matching test in the Table of
Contents and begin to diagnose the symptom.
All component location views are in Section 8.0. All
connector pinouts are in Section 9.0. All schematics
are in Section 10.0.
An * placed before the symptom description indi-
cates a customer complaint.
When repairs are required, refer to the appropri-
ate service manual for the proper removal and
repair procedure.
Diagnostic procedures change every year. New
diagnostic systems may be added, and carryover
systems may be enhanced. READ THIS MANUAL
BEFORE TRYING TO DIAGNOSE A VEHICLE
DIAGNOSTIC TROUBLE CODE. It is recom-
mended that you review the entire manual to be-
come familiar with all the new and changed diag-
nostic procedures.
This book reflects many suggested changes from
readers of past issues. After using this book, if you
have any comments or suggestions, please fill out
the comment form in the back of the book and mail
it back to us.
1.1 SYSTEM COVERAGE
This diagnostic procedures manual covers all
2001 PL NEON VEHICLES
1.2 SIX-STEP TROUBLESHOOTING
PROCEDURE
Diagnosis of the body system is done in six basic
steps:
•verification of complaint
•verification of any related symptoms
•symptom analysis
•problem isolation
•repair of isolated problem
•verification of proper operation
2.0 IDENTIFICATION OF
SYSTEM
The vehicle systems that are part of the ‘‘body’’
system are:
•Airbag System
•Audio System
•Exterior Lighting
•Instrument Cluster
•Interior Lighting
•Power Door Locks/Remote Keyless Entry
•Vehicle Communications
•Vehicle Theft Security System
3.0 SYSTEM DESCRIPTION AND
FUNCTIONAL OPERATION
The body system on the 2001 PL consists of a
combination of modules that communicate over the
PCI bus (Programmable Communication Interface
multiplex system). Through the PCI bus, informa-
tion about the operation of vehicle components and
circuits is relayed quickly to the appropriate mod-
ule(s).All modules receive all the information trans-
mitted on the bus even though a module may not
require all information to perform it’s function. It
will only respond to messages ‘‘addressed’’ to it
through a binary coding process. This method of
data transmission significantly reduces the com-
plexity of the wiring in the vehicle and the size of
wiring harnesses. All of the information about the
functioning of all the systems is organized, con-
trolled, and communicated by the PCI bus, which is
described in the Vehicle Communication Section of
this general information.
3.1 AIRBAG SYSTEM
TheAirbag Control Module (ACM) is bolted to the
floor panel transmission tunnel rearward from the
gear shift selector inside the vehicle. The ACM
mounting bracket is welded to the tunnel and is not
serviced with the ACM. The ACM contains a micro-
processor, the impact sensor, and energy storage
capacitor. The microprocessor contains the airbag
system logic. The ACM system logic includes On-
Board Diagnostics (OBD) capability, and communi-
cates with the instrument cluster circuitry via the
PCI data bus to control the airbag indicator lamp.
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The microprocessor in the ACM monitors the
impact sensor signal and the airbag system electri-
cal circuits to determine the system readiness. If
the ACM detects a monitored system fault, it sends
messages to the instrument cluster on the PCI data
bus to turn on the airbag indicator lamp. A pre-
programmed decision algorithm in the ACM micro-
processor determines when the deceleration rate as
signaled by the sensor indicates an impact that is
severe enough to require airbag system protection.
When the programmed conditions are met, the
ACM sends an electrical signal to deploy the airbag
system components.
The impact sensor is an accelerometer that
senses the rate of vehicle deceleration, which pro-
vides verification of the direction and severity of an
impact. The impact sensor is calibrated for the
specific vehicle, and is only serviced as a unit with
the ACM.
The ACM also contains an energy-storage capac-
itor. The purpose of the capacitor is to provide
airbag system protection in a severe secondary
impact if the initial impact has damaged or discon-
nected the battery, but was not severe enough to
deploy the airbags.
THE AIRBAG SYSTEM IS A SENSITIVE,
COMPLEX ELECTROMECHANICAL UNIT.
BEFORE ATTEMPTING TO DIAGNOSE OR
SERVICE ANY AIRBAG SYSTEM OR RE-
LATED STEERING WHEEL, STEERING COL-
UMN, OR INSTRUMENT PANEL COMPO-
NENTSYOU MUST FIRST DISCONNECTAND
ISOLATE THE BATTERY NEGATIVE
(GROUND) CABLE. WAIT TWO MINUTES
FOR THE SYSTEM CAPACITOR TO DIS-
CHARGE BEFORE FURTHER SYSTEM SER-
VICE. THIS IS THE ONLY SURE WAY TO
DISABLE THE AIRBAG SYSTEM. FAILURE
TO DO THIS COULD RESULT IN ACCIDEN-
TAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
NEVER STRIKE OR KICK THE AIRBAG
CONTROL MODULE, AS IT CAN DAMAGE
THE IMPACT SENSOR OR AFFECT ITS CAL-
IBRATION. IF AN AIRBAG CONTROL MOD-
ULE IS ACCIDENTALLY DROPPED DURING
SERVICE, THE MODULE MUST BE
SCRAPPED AND REPLACED WITH A NEW
UNIT.
The airbag warning lamp is the only point at
which the customer can observe ‘‘symptoms’’ of
system malfunction. Whenever the ignition key is
turned to the ‘‘run’’ or ‘‘start’’ position, the MIC
performs a lamp check by turning the airbag warn-
ing lamp on for 6-8 seconds. If the lamp turns off, it
means that the ACM has checked the system and
found it to be free of discernible malfunctions. If the
lamp remains on, there could be an active fault in
the system or the MIC lamp circuit may be inter-
nally shorted to ground. If the lamp comes on and
stays on for a period longer than 6-8 seconds then
goes off, there is usually an intermittent problem in
the system.
Perform the WARNING LAMP OPEN procedure
in this book to find the cause of any customer
complaint regarding the AIRBAG warning lamp,
such as:
•warning lamp does not illuminate
•warning lamp stays illuminated with no active
DTC’s
The ACM cannot be repaired or adjusted and, if
damaged or faulty, it must be replaced.
3.1.1 DRIVER AIRBAG MODULE (DAB)
The airbag protective trim cover is the most
visible part of the driver side airbag system. The
module is mounted directly to the steering wheel.
Located under the trim cover are the horn switch,
the airbag cushion, and the airbag cushion support-
ing components. The airbag module includes a
housing to which the cushion and inflator are
attached and sealed. The airbag module cannot be
repaired, and must be replaced if deployed or in any
way damaged. The inflator assembly is mounted to
the back of the airbag module. The inflator seals the
hole in the airbag cushion so it can discharge the
gas it produces directly into the cushion when
supplied with the proper electrical signal. The pro-
tective trim cover is fitted to the front of the airbag
module and forms a decorative cover in the center of
the steering wheel. Upon airbag deployment, this
cover will split at a predetermined breakout line.
THE AIRBAG MODULE INFLATOR ASSEM-
BLY CONTAINS SODIUM AZIDE AND POTAS-
SIUM NITRATE. THESE MATERIALS ARE
POISONOUS AND EXTREMELY FLAMMA-
BLE. CONTACT WITH ACID, WATER, OR
HEAVY METALS MAY PRODUCE HARMFUL
AND IRRITATING GASES (SODIUM HY-
DROXIDE IS FORMED IN THE PRESENCE
OF MOISTURE) OR COMBUSTIBLE COM-
POUNDS. IN ADDITION, THE PASSENGER
AIRBAG MODULE CONTAINS ARGON GAS
PRESSURIZED TO OVER 2500 PSI. DO NOT
ATTEMPT TO DISMANTLEANAIRBAG MOD-
ULE OR TAMPER WITH ITS INFLATOR. DO
NOT PUNCTURE, INCINERATE, OR BRING
INTO CONTACT WITH ELECTRICITY. DO
NOT STORE AT TEMPERATURE EXCEED-
ING 93°C (200°F).
3.1.2 CLOCKSPRING
The clockspring is mounted on the steering col-
umn behind the steering wheel. This assembly
consists of a plastic housing which contains a flat,
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