2001 CHRYSLER VOYAGER brake sensor

TEST ACTION APPLICABILITY
3 With the DRBIIIt, read DTCs.
Did the DTC reoccur?All
Ye s®
No®Go To 4
4 Turn the ignition off.
Visually inspect wheel speed sensor.
Visually inspect tone wheel.
Visually inspect wiring harness.
Visually inspect brakes for locking up due to lining contamination or overheating.
Inspect all Components for defects which may cause a Signal DTC to set.
Is any Component Damaged?All
Ye s®Repair as necessary. The vehicle must be driven at 25 km/h (15
mph) to extinguish the ABS indicator.
Perform ABS VERIFICATION TEST - VER 1.
No®Test Complete.
27
BRAKES (CAB)
RIGHT REAR WHEEL SPEED SIGNAL FAILURE ÐContinued

9.0 CONNECTOR PINOUTS
CONTROLLER ANTILOCK BRAKE - BLACK 24 WAYCAV CIRCUIT FUNCTION
1 Z107 12BK/DG GROUND
2 B1 18DG/OR RIGHT REAR WHEEL SPEED SENSOR 12 VOLT SUPPLY
3 B2 18DG/LB RIGHT REAR WHEEL SPEED SENSOR SIGNAL
4- -
5 D25 18WT/VT PCI BUS
6 B6 18DG/WT RIGHT FRONT WHEEL SPEED SENSOR 12 VOLT SUPPLY
7 B7 18DG/VT RIGHT FRONT WHEEL SPEED SENSOR SIGNAL
8- -
9 A111 12DG/RD FUSED B(+)
10 F500 18DG/PK FUSED IGNITION SWITCH OUTPUT
11 - -
12 - -
13 - -
14 - -
15 - -
16 Z127 12BK/DG GROUND
17 - -
18 L50 18WT/TN BRAKE LAMP SWITCH OUTPUT
19 B3 18DG/YL LEFT REAR WHEEL SPEED SENSOR 12 VOLT SUPPLY
20 B4 18DG/GY LEFT REAR WHEEL SPEED SENSOR SIGNAL
21 - -
22 B8 18DG/TN LEFT FRONT WHEEL SPEED SENSOR 12 VOLT SUPPLY
23 B9 18DG/LG LEFT FRONT WHEEL SPEED SENSOR SIGNAL
24 A107 12TN/RD FUSED B(+)
DATA LINK CONNECTOR - WHITE 16 WAYCAV CIRCUIT FUNCTION
1- -
2 D25 20WT/VT PCI BUS
3- -
4 Z11 18BK/LG GROUND
5 Z111 18BK/WT GROUND
6 D20 20WT/LG SCI RECEIVE
7 D21 20WT/BR SCI TRANSMIT
8- -
9 D23 20WT/BR FLASH PROGRAM ENABLE
10 - -
11 - -
12 - -
13 - -
14 D16 20WT/OR SCI RECEIVE
15 - -
16 A105 20DB/RD FUSED B(+)
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
47
CONNECTOR PINOUTS

DIAGNOSTIC JUNCTION PORT - BLACK 16 WAYCAV CIRCUIT FUNCTION
1 D25 20WT/VT PCI BUS (PCM/SKIM)
2 D25 20WT/VT PCI BUS (HVAC)
3 D25 20WT/VT PCI BUS (RADIO)
4 D25 20WT/VT PCI BUS (ORC)
5 D25 20WT/VT PCI BUS (CLUSTER)
6 D25 20WT/VT PCI BUS (BCM)
7 D25 20WT/VT PCI BUS (DLC)
8 D25 20WT/VT PCI BUS (OVERHEAD CONSOLE)
9 D25 20WT/VT PCI BUS (IPM)
10 D25 20WT/VT PCI BUS (LSIACM)
11 D25 20WT/VT PCI BUS (MEMORY SEAT/MIRROR)
12 D25 20WT/VT PCI BUS (PWR DOOR/ LT, RT LIFTGATE)
13 D25 20WT/VT PCI BUS (RSIACM)
14 - -
15 - -
16 - -
INTELLIGENT POWER MODULE C4 - GRAY 10 WAYCAV CIRCUIT FUNCTION
1 Z127 12BK/DG GROUND
2 T750 12YL/GY ENGINE STARTER MOTOR RELAY OUTPUT
3 K342 16BR/WT AUTOMATIC SHUTDOWN RELAY OUTPUT
4 F500 18DG/PK (ANTILOCK
BRAKES)FUSED IGNITION SWITCH RELAY OUTPUT (RUN)
5- -
6 D25 16WT/VT (ANTILOCK
BRAKES)PCI BUS
7 A107 12TN/RD (ANTILOCK
BRAKES)FUSED B(+)
8 A111 12DG/RD (ANTILOCK
BRAKES)FUSED B(+)
9 A701 14BR/RD FUSED B(+)
10 - -
LEFT FRONT WHEEL SPEED SENSOR - BLACK 2 WAYCAV CIRCUIT FUNCTION
1 B9 18DG/LG LEFT FRONT WHEEL SPEED SENSOR SIGNAL
2 B8 18DG/TN LEFT FRONT WHEEL SPEED SENSOR 12 VOLT SUPPLY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
48
CONNECTOR PINOUTS

TABLE OF CONTENTS - Continued
P0235-BOOST PRESSURE SENSOR SIGNAL VOLTAGE TOO LOW.............67
P0235-BOOST PRESSURE SENSOR SUPPLY VOLTAGE TOO HIGH OR LOW....70
P0335-CKP POSITION SENSOR CIRCUIT OVERSPEED RECOGNITION.........73
P0340-CKP POSITION SENSOR CIRCUIT DYNAMIC PLAUSIBILITY.............75
P0340-CMP POSITION SENSOR CIRCUIT CMP/CKP SYNC FAILURE...........77
P0340-CMP POSITION SENSOR CIRCUIT SIGNAL FREQUENCY TOO HIGH.....80
P0340-CMP POSITION SENSOR CIRCUIT STATIC PLAUSIBILITY...............80
P0380-GLOW PLUG CIRCUIT A OPEN CIRCUIT.............................84
P0380-GLOW PLUG CIRCUIT A SHORT CIRCUIT............................84
P0403-EGR SOLENOID CIRCUIT OPEN CIRCUIT............................87
P0403-EGR SOLENOID CIRCUIT SHORT CIRCUIT...........................90
P0480-FAN 1 CONTROL CIRCUIT OPEN CIRCUIT...........................92
P0480-FAN 1 CONTROL CIRCUIT SHORT CIRCUIT..........................94
P0481-FAN 2 CONTROL CIRCUIT OPEN CIRCUIT...........................96
P0481-FAN 2 CONTROL CIRCUIT SHORT CIRCUIT..........................98
P0500-VEHICLE SPEED SENSOR FREQUENCY TOO HIGH..................100
P0500-VEHICLE SPEED SENSOR HIGH LEVEL DURATION...................100
P0500-VEHICLE SPEED SENSOR PLAUSIBILITY...........................100
P0500-VEHICLE SPEED SENSOR SIGNAL VOLTAGE TOO HIGH..............100
P0514-BATTERY TEMP SENSOR CIRCUIT SIGNAL VOLTAGE TOO HIGH.......104
P0520- OIL PRESS SENSOR CIRCUIT MALF PLAUSIBILITY..................107
P0520-OIL PRESS SENSOR CKT MALF SUPPLY VOLTAGE TOO HIGH OR LOW .110
P0530-A/C PRESSURE SENSOR CIRCUIT PLAUSIBILITY....................112
P0530-A/C PRESSURE SENSOR CIRCUIT SIGNAL VOLTAGE TOO HIGH.......112
P0530-A/C PRESSURE SENSOR CIRCUIT SIGNAL VOLTAGE TOO LOW.......112
P0530-A/C PRESSURE SENSOR CIRCUIT SUPPLY VOLTAGE TOO HIGH OR
LOW.................................................................112
P0560-SYSTEM VOLTAGE TOO HIGH.....................................117
P0560-SYSTEM VOLTAGE TOO LOW.....................................120
*CHECKING THE CHARGING SYSTEM OPERATION - DIESEL................120
P0615-STARTER RELAY CIRCUIT SHORT CIRCUIT.........................124
P0620-GENERATOR FIELD CONTROL MALF BATTERY VOLTAGE
DEVIATION TOO HIGH.................................................126
P0620-GENERATOR FIELD CONTROL MALF BATTERY VOLTAGE
DEVIATION TOO LOW..................................................126
P0620-GENERATOR FIELD CONTROL MALF BATTERY VOLTAGE TOO HIGH . . .126
P0620-GENERATOR FIELD CONTROL MALF BATTERY VOLTAGE TOO LOW. . . .126
P0620-GENERATOR FIELD CONTROL MALF CHARGING VOLTS TOO LOW. . . .126
P0620-GENERATOR FIELD CONTROL MALF OPEN CIRCUIT.................126
P0620-GENERATOR FIELD CONTROL MALF SHORT CIRCUIT................126
P0620-GENERATOR FIELD CONTROL MALF UNSTABLE CURRENT...........126
P0627-FUEL LIFT PUMP RELAY CONTROL CIRCUIT OPEN CIRCUIT..........129
P0627-FUEL LIFT PUMP RELAY CONTROL CIRCUIT SHORT CIRCUIT.........131
P0641-SENSOR REFERENCE VOLTAGE A CKT VOLTAGE TOO HIGH..........133
P0651-SENSOR REFERENCE VOLTAGE B CKT VOLTAGE TOO HIGH..........133
P0641-SENSOR REFERENCE VOLTAGE A CKT VOLTAGE TOO LOW..........136
P0651-SENSOR REFERENCE VOLTAGE B CKT VOLTAGE TOO LOW..........136
P0645-A/C CLUTCH RELAY CIRCUIT OPEN CIRCUIT........................139
P0645-A/C CLUTCH RELAY CIRCUIT SHORT CIRCUIT......................142
P0685-ECM/PCM RELAY CONTROL CIRCUIT SHUTS OFF TOO EARLY........145
P0685-ECM/PCM RELAY CONTROL CIRCUIT SHUTS OFF TOO LATE..........147
P0703-BRAKE SWITCH SIGNAL CIRCUITS PLAUSIBILITY WITH
REDUNDANT CONTACT................................................149
iii

TABLE OF CONTENTS - Continued
P0703-BRAKE SWITCH SIGNAL CKTS PLAUS W/REDUNDANT CONTACT
AFTER INITIALIZATION.................................................149
P0833-CLUTCH PEDAL PLAUSIBILITY....................................153
P1130-FUEL RAIL PRESSURE MALFUNCTION LEAKAGE DETECTED..........155
P1130-FUEL RAIL PRESSURE MALFUNCTION PRESSURE TOO HIGH-SHUT
OFF .................................................................155
P1130-FUEL RAIL PRESSURE MALFUNCTION PRESSURE TOO LOW.........155
P1130-FUEL RAIL PRESSURE MALFUNCTION SOLENOID OPEN.............155
P1131-FUEL PRESSURE SOLENOID OPEN CIRCUIT........................158
P1131-FUEL PRESSURE SOLENOID PLAUSIBILITY IN AFTER-RUN............158
P1131-FUEL PRESSURE SOLENOID SHORT CIRCUIT.......................158
P1511-BATTERY SENSE LINE 1 VOLTAGE TOO HIGH.......................162
P1511-BATTERY SENSE LINE 1 VOLTAGE TOO LOW.......................164
P1605-IGNITION SWITCH PLAUSIBILITY..................................166
P1685-SKIM SYSTEM INVALID KEY CODE RECEIVED.......................168
P1685-SKIM SYSTEM INVALID SECRET KEY IN EEPROM....................168
P1685-SKIM SYSTEM KEY COMMUNICATION TIMED OUT...................168
P1685-SKIM SYSTEM SKIM ERROR......................................168
P1685-SKIM SYSTEM WRITE ACCESS TO EEPROM FAILURE................168
P2120-ACC PEDAL POSITION SENSOR 1 CKT PLAUSIBILITY................170
P2120-ACC PEDAL POSITION SENSOR 1 CKT PLAUSIBILITY WITH BRAKE
SWITCH..............................................................170
P2120-ACC PEDAL POSITION SENSOR 1 CKT PLAUSIBILITY WITH
POTENTIOMETER.....................................................170
P2120-ACC PEDAL POSITION SENSOR 1 CKT SIGNAL VOLTAGE TOO HIGH . . .170
P2120-ACC PEDAL POSITION SENSOR 1 CKT SIGNAL VOLTAGE TOO LOW . . .170
P2120-ACC PEDAL POSITION SENSOR 1 CKT SUPPLY VOLTAGE TOO
HIGH OR LOW........................................................170
*CHECKING THE A/C CLUTCH OPERATION...............................179
*CHECKING THE ACCELERATOR PEDAL POSITION SENSOR CALIBRATION . . .181
*CHECKING THE BOOST PRESSURE SENSOR CALIBRATION................182
*CHECKING THE ECM POWER AND GROUND CIRCUITS....................183
*CHECKING THE EGR SYSTEM..........................................185
*CHECKING THE ELECTRIC RADIATOR FAN OPERATION...................186
*CHECKING THE ENGINE COOLANT TEMPERATURE SENSOR CALIBRATION . .193
*CHECKING THE ENGINE MECHANICAL SYSTEMS.........................194
*CHECKING THE GLOW PLUG OPERATION...............................195
*CHECKING THE LIFT PUMP MOTOR OPERATION.........................197
*CHECKING THE MAF SENSOR CALIBRATION.............................200
*CHECKING THE SPEED CONTROL OPERATION...........................201
*CHECKING THE VEHICLE SPEED SIGNAL................................204
*ENGINE CRANKS BUT WILL NOT START.................................207
*ENGINE WILL NOT CRANK.............................................210
VEHICLE THEFT/SECURITY
ANTENNA FAILURE....................................................214
COP FAILURE.........................................................214
EEPROM FAILURE.....................................................214
INTERNAL FAULT......................................................214
RAM FAILURE.........................................................214
SERIAL LINK INTERNAL FAULT..........................................214
STACK OVERFLOW FAILURE............................................214
PCM STATUS FAILURE.................................................216
iv

TABLE OF CONTENTS - Continued
SERIAL LINK EXTERNAL FAULT.........................................216
ROLLING CODE FAILURE...............................................218
VIN MISMATCH........................................................218
TRANSPONDER COMMUNICATION FAILURE..............................220
TRANSPONDER CYCLIC REDUNDANCY CHECK (CRC) FAILURE.............220
TRANSPONDER ID MISMATCH..........................................220
TRANSPONDER RESPONSE MISMATCH..................................220
VERIFICATION TESTS
VERIFICATION TESTS..................................................223
8.0 COMPONENT LOCATIONS..............................................227
8.1CONTROL MODULES.............................................227
8.2CONTROLS AND SOLENOIDS......................................227
8.3DATA LINK CONNECTOR..........................................227
8.4FUEL SYSTEM...................................................228
8.5RELAYS.........................................................228
8.6SENSORS.......................................................229
8.7SWITCHES......................................................230
9.0 CONNECTOR PINOUTS................................................231
A/C COMPRESSOR CLUTCH - LT. GRAY 2 WAY............................231
A/C PRESSURE SENSOR - GRAY 4 WAY..................................231
ACCELERATOR PEDAL POSITION SENSOR (DIESEL) - BLACK 10 WAY........231
BATTERY TEMPERATURE SENSOR (DIESEL) - BLACK 2 WAY................231
BOOST PRESSURE SENSOR (DIESEL) - BLACK 4 WAY.....................232
BRAKE LAMP SWITCH - BLACK 6 WAY...................................232
CAMSHAFT POSITION SENSOR (DIESEL) - BLACK 3 WAY...................232
CLUTCH PEDAL UPSTOP SWITCH (DIESEL) - RED 2 WAY...................232
CRANKSHAFT POSITION SENSOR (DIESEL) - BLACK 3 WAY................232
DATA LINK CONNECTOR - BLACK 16 WAY................................233
EGR SOLENOID (DIESEL) - LT. GRAY 2 WAY...............................233
ENGINE CONTROL MODULE C1 (DIESEL) - BLACK 81 WAY..................234
ENGINE CONTROL MODULE C1 (DIESEL) - BLACK 81 WAY..................235
ENGINE CONTROL MODULE C2 (DIESEL) - BLACK 40 WAY..................236
ENGINE COOLANT TEMP SENSOR (DIESEL) - BLUE 2 WAY.................236
ENGINE OIL PRESSURE SENSOR (DIESEL) - BLACK 3 WAY.................237
ENGINE OIL TEMPERATURE SENSOR (DIESEL) - BLACK 2 WAY.............237
FUEL HEATER (DIESEL) - BLACK 2 WAY..................................237
FUEL INJECTOR NO. 1 (DIESEL) - BLACK 2 WAY...........................237
FUEL INJECTOR NO. 2 (DIESEL) - BLACK 2 WAY...........................237
FUEL INJECTOR NO. 3 (DIESEL) - BLACK 2 WAY...........................238
FUEL INJECTOR NO. 4 (DIESEL) - BLACK 2 WAY...........................238
FUEL PRESSURE SENSOR (DIESEL) - BLACK 3 WAY.......................238
FUEL PRESSURE SOLENOID (DIESEL) - BLACK 2 WAY.....................238
GENERATOR - BLACK 2 WAY...........................................238
GLOW PLUG RELAY (DIESEL) - BLACK 4 WAY.............................239
INTELLIGENT POWER MODULE C3 (DIESEL) - YELLOW/RED 20 WAY.........239
LEFT SPEED CONTROL SWITCH - WHITE 2 WAY..........................239
LIFT PUMP MOTOR (DIESEL) - BLACK 2 WAY..............................239
MASS AIR FLOW SENSOR (DIESEL) - ORANGE 5 WAY......................240
v

A/C PRESSURE SENSOR CIRCUIT SIGNAL
VOLTAGE TOO HIGH
A/C PRESSURE SENSOR CIRCUIT SIGNAL
VOLTAGE TOO LOW
A/C PRESSURE SENSOR CIRCUIT SUPPLY
VOLTAGE TOO HIGH OR LOW
A/C PRESSURE SENSOR CIRCUIT PLAUSI-
BILITY
SYSTEM VOLTAGE TOO HIGH
SYSTEM VOLTAGE TOO LOW
S/C SWITCH SIGNAL CIRCUIT SIGNAL VOLT-
AGE TOO HIGH
S/C SWITCH SIGNAL CIRCUIT SIGNAL VOLT-
AGE TOO LOW
S/C SWITCH SIGNAL CIRCUIT PLAUSIBILITY
ECM ERROR RECOVERY HAS OCCURRED
ECM ERROR REDUNDANT OVERRUN MONI-
TORING
ECM ERROR GATE ARRAY - QUANTITY STOP
ECM ERROR GATE ARRAY - COMMUNICA-
TION
ECM ERROR - COMMUNICATION NOT VERI-
FIED
STARTER RELAY CIRCUIT OPEN CIRCUIT
STARTER RELAY CIRCUIT SHORT CIRCUIT
GENERATOR FIELD CONTROL MALF BAT-
TERY VOLTAGE TOO HIGH
GENERATOR FIELD CONTROL MALF BAT-
TERY VOLTAGE TOO LOW
GENERATOR FIELD CONTROL MALF OPEN
CIRCUIT
GENERATOR FIELD CONTROL MALF SHORT
CIRCUIT
GENERATOR FIELD CONTROL MALF
CHARGING VOLTS TOO LOW
GENERATOR FIELD CONTROL MALF BAT-
TERY VOLTAGE DEVIATION TOO HIGH
GENERATOR FIELD CONTROL MALF BAT-
TERY VOLTAGE DEVIATION TOO LOW
GENERATOR FIELD CONTROL MALF UN-
STABLE CURRENT
SENSOR REFERENCE VOLTAGE A CKT VOLT-
AGE TOO HIGH
SENSOR REFERENCE VOLTAGE A CKT VOLT-
AGE TOO LOW
SENSOR REFERENCE VOLTAGE B CKT
VOLTAGE TOO HIGH
SENSOR REFERENCE VOLTAGE B CKT
VOLTAGE TOO LOW
A/C CLUTCH RELAY CIRCUIT OPEN CIRCUIT
A/C CLUTCH RELAY CIRCUIT SHORT CIR-
CUIT
ECM/PCM RELAY CONTROL CIRCUIT SHUTS
OFF TOO EARLY
ECM/PCM RELAY CONTROL CIRCUIT SHUTS
OFF TOO LATE
BRAKE SWITCH SIGNAL CIRCUITS INCOR-
RECT CAN MESSAGEBRAKE SWITCH SIGNAL CIRCUITS PLAUSI-
BILITY WITH REDUNDANT CONTACT
BRAKE SWITCH SIGNAL CIRCUITS PLAUSI-
BILITY WITH REDUNDANT CONTACT AFTER
INITIALIZATION
CLUTCH UPSTOP SWITCH PERF PLAUSIBIL-
ITY
CLUTCH UPSTOP SWITCH PERF PLAUSIBIL-
ITY WITH P/N SWITCH
FUEL RAIL PRESSURE MALFUNCTION
PRESSURE TOO HIGH - LIMITATION
FUEL RAIL PRESSURE MALFUNCTION
PRESSURE TOO LOW
FUEL RAIL PRESSURE MALFUNCTION SO-
LENOID OPEN
FUEL RAIL PRESSURE MALFUNCTION
LEAKAGE DETECTED
FUEL PRESSURE SOLENOID OPEN CIRCUIT
FUEL PRESSURE SOLENOID SHORT CIR-
CUIT
FUEL PRESSURE SOLENOID PLAUSIBILITY
IN AFTER-RUN
CALCULATED INJECTOR VOLTAGE - VOLT-
AGE 1 TOO LOW
CALCULATED INJECTOR VOLTAGE - VOLT-
AGE 2 TOO LOW
BATTERY SENSE LINE 1 VOLTAGE TOO
HIGH
BATTERY SENSE LINE 1 VOLTAGE TOO LOW
FUEL PRESS REG CURRENT CONTROL SIG-
NAL TOO HIGH
FUEL PRESS REG CURRENT CONTROL SIG-
NAL TOO LOW
GENERATOR FIELD CURRENT TOO HIGH
GENERATOR FIELD CURRENT TOO LOW
CAPACITOR VOLTAGE 1 VOLTAGE TOO HIGH
CAPACITOR VOLTAGE 1 VOLTAGE TOO LOW
CAPACITOR VOLTAGE 2 VOLTAGE TOO HIGH
CAPACITOR VOLTAGE 2 VOLTAGE TOO LOW
IGNITION SWITCH PLAUSIBILITY
AFTER RUN SHUT OFF ERROR - ZERO
QUANTITY
AFTERRUN SHUT OFF ERROR - INJ. POWER-
STAGE
VOLTAGE REGULATOR SIGNAL VOLTAGE
TOO HIGH
VOLTAGE REGULATOR SIGNAL VOLTAGE
TOO LOW
MIL/DIAG LAMP VIA J1850 BUS IN FRAME
RESPONSE ERROR
MIL/DIAG LAMP VIA J1850 BUS - STATUS
ERROR
J1850 COMMUNICATION BUS SHORT TO
VOLTAGE
J1850 COMMUNICATION BUS SHORT TO
GROUND
J1850 COMMUNICATION BUS TRANSMIT
BUFFER OVERRUN
5
GENERAL INFORMATION

J1850 COMMUNICATION BUS SPI ERROR
J1850 COMMUNICATION BUS RECEIVE TIME-
OUT
J1850 COMMUNICATION BUS UNAUTHO-
RIZED RESET
EEPROM PLAUSIBILITY CHECKSUM ERROR
EEPROM PLAUSIBILITY VIN CHECKSUM
ERROR
EEPROM PLAUSIBILITY COMMUNICATION
ERROR
EEPROM PLAUSIBILITY WRITE ERROR
EEPROM PLAUSIBILITY VARIATION NUM-
BER ERROR
EEPROM PLAUSIBILITY CODE WORD IN-
CORRECT OR MISSING
SKIM SYSTEM SKIM ERROR
SKIM SYSTEM WRITE ACCESS TO EEPROM
FAILURE
SKIM SYSTEM INVALID SECRET KEY IN EE-
PROM
SKIM SYSTEM KEY COMMUNICATION
TIMED OUT
SKIM SYSTEM INVALID KEY CODE RE-
CEIVED
EEPROM RECOVERY OCCURRED
EEPROM REDUNDANT OVERRUN MONI-
TORING
EEPROM QUANTITY STOP
EEPROM COMMUNICATION ERROR
EEPROM COMMUNICATION NOT VERIFIED
ACC PEDAL POSITION SENSOR 1 CKT SIG-
NAL VOLTAGE TOO HIGH
ACC PEDAL POSITION SENSOR 1 CKT SIG-
NAL VOLTAGE TOO LOW
ACC PEDAL POSITION SENSOR 1 CKT SUP-
PLY VOLTAGE TOO HIGH OR LOW
ACC PEDAL POSITION SENSOR 1 CKT PLAU-
SIBILITY WITH POTENTIOMETER
ACC PEDAL POSITION SENSOR 1 CKT PLAU-
SIBILITY WITH BRAKE SWITCH
ACC PEDAL POSITION SENSOR 1 CKT PLAU-
SIBILITY
3.3.4 SKIM DIAGNOSTIC TROUBLE CODES
ANTENNA FAILURE
COP FAILURE
EEPROM FAILURE
PCM STATUS FAILURE
INTERNAL FAULT
RAM FAILURE
ROLLING CODE FAILURE
SERIAL LINK EXTERNAL FAULT
SERIAL LINK INTERNAL FAULT
STACK OVERFLOW FAILURE
TRANSPONDER COMMUNICATION FAILURE
TRANSPONDER CRC (CYCLIC REDUN-
DANCY CHECK) FAILURE
TRANSPONDER ID MISMATCHTRANSPONDER RESPONSE MISMATCH
VIN MISMATCH
3.3.5 HANDLING NO TROUBLE CODE
PROBLEMS
After reading Section 3.0 (System Description
and Functional Operation), you should have a bet-
ter understanding of the theory and operation of the
on-board diagnostics, and how this relates to the
diagnosis of a vehicle that may have a driveability-
related symptom or complaint.
3.4 USING THE DRBIIIT
Refer to the DRBIIItuser 's guide for instructions
and assistance with reading the DTCs, erasing the
DTCs, lab scope usage and other DRBIIItfunc-
tions.
3.4.1 DRBIIITDOES NOT POWER UP
If the LEDs do not light or no sound is emitted at
start up, check for loose cable connections or a bad
cable. Check the vehicle battery voltage at data link
connector cavity 16. A minimum of 11.0 volts is
required to adequately power the DRB. Check for
proper ground connection at data link connector
cavities 4 and 5.
If all connections are proper between the
DRBIIItand the vehicle or other devices, and the
vehicle battery is fully charged, an inoperative
DRBIIItmay be the result of a faulty cable or
vehicle wiring. For a blank screen, refer to the
appropriate diagnostic manual.
3.4.2 DISPLAY IS NOT VISIBLE
Low temperatures will affect the visibility of the
display. Adjust the contrast to compensate for this
condition.
6
GENERAL INFORMATION