2000 CHRYSLER VOYAGER radiator

TABLE OF CONTENTS - Continued
P-0443 EVAP PURGE SOLENOID CIRCUIT................................143
P-0460 FUEL LEVEL UNIT NO CHANGE OVER MILES.......................148
P-0462 FUEL LEVEL SENDING UNIT VOLTS TOO LOW......................149
P-0463 FUEL LEVEL SENDING UNIT VOLTS TOO HIGH......................151
P-0500 NO VEHICLE SPEED SENSOR SIGNAL.............................153
P-0505 IDLE AIR CONTROL MOTOR CIRCUITS.............................159
P-0505B IDLE AIR CONTROL MOTOR CIRCUIT.............................164
P-0505C IDLE AIR CONTROL MOTOR CIRCUIT.............................165
P-0505D IDLE AIR CONTROL MOTOR CIRCUIT.............................166
P-0505E IDLE AIR CONTROL MOTOR CIRCUIT.............................167
P-0600 PCM FAILURE SPI COMMUNICATIONS.............................168
P-0601 INTERNAL CONTROLLER FAILURE................................169
P-0645 A/C CLUTCH RELAY CIRCUIT.....................................170
P-0703 BRAKE SWITCH STUCK PRESSED OR RELEASED..................172
P-1195 SLOW 1/1 O2S DURING CATALYST MONITOR.......................175
P-1281 ENGINE IS COLD TOO LONG.....................................177
P1282 FUEL PUMP RELAY CONTROL CIRCUIT.............................178
P-1294 TARGET IDLE NOT REACHED....................................180
P-1297 NO CHANGE IN MAP FROM START TO RUN........................183
P-1388 AUTO SHUTDOWN RELAY CONTROL CIRCUIT......................186
P-1389 NO ASD RELAY OUTPUT VOLTAGE AT PCM........................188
P-1391 INTERMITTENT LOSS OF CMP OR CKP............................191
P-1398 MISFIRE ADAPTIVE NUMERATOR AT LIMIT.........................198
P-1486 EVAP LEAK MONITOR PINCHED HOSE FOUND.....................200
P-1491 RADIATOR FAN CONTROL RELAY CIRCUIT.........................203
P-1494 LEAK DETECTION PUMP PRESSURE SWITCH......................206
P-1495 LEAK DETECTION PUMP SOLENOID CIRCUIT.......................209
P-1496 5 VOLT SUPPLY OUTPUT TOO LOW...............................212
P-1598 A/C PRESSURE SENSOR VOLTS TOO HIGH........................214
P-1599 A/C PRESSURE SENSOR VOLTS TOO LOW.........................217
P-1695 NO CCD MESSAGE FROM BODY CONTROLLER....................220
P-1696 PCM FAILURE EEPROM WRITE DENIED...........................222
P-1697 PCM FAILURE SRI MILE NOT STORED.............................222
P-1698 NO CCD MESSAGES FROM TCM..................................224
CHECKING 5 VOLT SUPPLY CIRCUIT.....................................226
* CHECKING EGR SYSTEM.............................................228
* CHECKING ENGINE VACUUM..........................................231
* CHECKING EVAPORATIVE EMISSION SYSTEM...........................232
* CHECKING FOR OXYGEN SENSOR SWITCHING..........................234
* CHECKING FUEL DELIVERY...........................................237
* CHECKING IDLE AIR CONTROL MOTOR.................................242
* CHECKING INTAKE AIR TEMPERATURE SENSOR.........................244
* CHECKING MAP SENSOR CALIBRATION................................245
* CHECKING MINIMUM IDLE AIR FLOW...................................246
* CHECKING OXYGEN SENSOR HEATER.................................247
* CHECKING PARK/NEUTRAL POSITION SWITCH..........................249
* CHECKING PCM POWER AND GROUND CIRCUITS.......................251
* CHECKING SECONDARY IGNITION.....................................252
* CHECKING THE ENGINE MECHANICAL SYSTEMS........................253
* CHECKING THROTTLE POSITION SENSOR CALIBRATION.................254
* CHECKING THE A/C PRESSURE SENSOR SIGNAL........................255
iii
ProCarManuals.com

TABLE OF CONTENTS - Continued
ENGINE STARTER MOTOR RELAY.......................................347
FRONT BLOWER MOTOR RELAY........................................347
FUEL HEATER RELAY (DIESEL)..........................................347
FUEL PUMP RELAY (GAS)..............................................347
HIGH BEAM RELAY....................................................347
HORN RELAY.........................................................347
LOW BEAM RELAY....................................................348
PARK LAMP RELAY....................................................348
TRANSMISSION CONTROL RELAY (EATX).................................348
WIPER HIGH/LOW RELAY...............................................348
WIPER ON RELAY.....................................................348
POWERTRAIN CONTROL MODULE C1 - BLACK 40 WAY.....................349
POWERTRAIN CONTROL MODULE C2 - GRAY 40 WAY......................350
RADIATOR FAN NO. 1 - BLACK 2 WAY....................................350
RADIATOR FAN NO 2 - BLACK 2 WAY....................................351
RADIATOR FAN RELAY - BLACK 4 WAY...................................351
SENTRY KEY IMMOBILIZER MODULE - BLACK 6 WAY......................351
THROTTLE POSITION SENSOR (2.0L) - BLACK 3 WAY......................351
THROTTLE POSITION SENSOR (EXCEPT 2.0L) - NATURAL 3 WAY............352
TORQUE CONVERTER CLUTCH SOLENOID (ATX)-3WAY..................352
TRANSMISSION CONTROL MODULE - BLACK 60 WAY......................353
TRANSMISSION RANGE SENSOR - GRAY 10 WAY.........................354
TRANSMISSION SOLENOID/PRESSURE SWITCH - BLACK 8 WAY............354
VEHICLE SPEED CONTROL SERVO - BLACK 4 WAY........................354
VEHICLE SPEED SENSOR (EXCEPT 3.3L/3.8L) - BLACK 3 WAY..............354
10.0 SCHEMATIC DIAGRAMS................................................355
10.12000 GS 2.0L AND 2.4L ENGINES...................................355
10.22000 GS 3.0L ENGINE...........................................356
10.32000 GS 3.3L and 3.8L ENGINES................................................................357
vi
ProCarManuals.com

Symptom:
P-1491 RADIATOR FAN CONTROL RELAY CIRCUIT
When Monitored and Set Condition:
P-1491 RADIATOR FAN CONTROL RELAY CIRCUIT
When Monitored: With the ignition key on, battery voltage greater than 10 volts, and the
PCM requests the fans to be turned on.
Set Condition: An open or shorted condition is detected in the radiator fan relay control
circuit.
POSSIBLE CAUSES
FUSED B (+) CIRCUIT OPEN
RAD FAN RELAY OUTPUT CIRCUIT, 0 VOLTS TO BATTERY V
RADIATOR FAN RELAY GROUND CIRCUIT OPEN
RADIATOR FAN RELAY DEFECTIVE
RAD FAN RELAY CONTROL CIRCUIT SHORT TO GROUND
RADIATOR FAN MOTORS W/H INTERMITTENT DEFECT
RADIATOR FAN MOTORS W/H OBSERVABLE DEFECT
RADIATOR FAN RELAY CONTROL CIRCUIT OPEN
PCM DEFECTIVE (RADIATOR FAN MOTORS)
TEST ACTION APPLICABILITY
1 Ignition On
With the DRB, actuate the Radiator Fan Relay.
Are both of the Radiator Fan Motors cycling on and off?All
Ye s®Go To 2
No®Go To 4
2 Ignition On
With the DRB, actuate the Radiator Fan Relay.
Wiggle the Wiring Harness from the Relay to the PCM.
Did the wiggling interrupt the Radiator Fan Motor cycling?All
Ye s®Repair as necessary where wiggling caused the cycling to be
interrupted.
Perform Powertrain Verification Test VER-5A.
No®Go To 3
3 Ignition Off
Using the schematic as a guide, inspect the Wiring and Connectors.
Were any problems found?All
Ye s®Repair as necessary.
Perform Powertrain Verification Test VER-5A.
No®Test Complete.
203
DRIVEABILITY
ProCarManuals.com

TEST ACTION APPLICABILITY
4 Ignition On
With the DRB, actuate the Radiator Fan Relay.
Using a voltmeter, the Fan Relay Output Circuit voltage at the Relay Connector.
Does the voltage cycle from below 1.0 volt to Battery voltage?All
Ye s®Repair or replace Radiator Fans or Relay to Fan Wiring as
necessary.
Perform Powertrain Verification Test VER-5A.
No®Go To 5
5 Ignition Off
Disconnect the Radiator Fan Relay Connector.
Note: Check connectors - Clean/repair as necessary.
Turn key on.
Using a Voltmeter, measure the Fused B(+) Circuit at Relay Connector.
Is the voltage above 10.0 volts?All
Ye s®Go To 6
No®Repair the open Fused B (+) Circuit (check Radiator Fan Fuse in
PDC).
Perform Powertrain Verification Test VER-5A.
6 Ignition Off
Disconnect the Radiator Fan Relay Connector.
Note: Check connectors - Clean/repair as necessary.
Using an Ohmmeter, measure the Radiator Fan Relay Ground Circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 7
No®Repair the open Fan Relay Ground Circuit.
Perform Powertrain Verification Test VER-5A.
7 Ignition Off
Disconnect the Radiator Fan Relay Connector.
Disconnect the PCM Connector.
Note: Check connectors - Clean/repair as necessary.
Using an Ohmmeter, measure the Radiator Fan Relay Control Circuit to a good
ground.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Radiator Fan Relay Control Circuit for a short to
ground.
Perform Powertrain Verification Test VER-5A.
No®Go To 8
8 Ignition Off
Disconnect the Radiator Fan Relay Connector.
Disconnect the PCM Connector.
Note: Check connectors - Clean/repair as necessary.
Using an Ohmmeter, measure the resistance of the Radiator Fan Relay Control
Circuit from the Relay to the PCM.
Is the resistance below 5.0 ohms?All
Ye s®Go To 9
No®Repair the open Radiator Fan Relay Control Circuit.
Perform Powertrain Verification Test VER-5A.
204
DRIVEABILITY
P-1491 RADIATOR FAN CONTROL RELAY CIRCUIT ÐContinued
ProCarManuals.com

TEST ACTION APPLICABILITY
9 Ignition Off
Disconnect the PCM Connector.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire to the Radiator Fan Relay Control Circuit at the PCM.
Turn the ignition on.
Momentarily connect the other end of the jumper wire to a good ground.
Did the Radiator Fans actuate?All
Ye s®Go To 10
No®Replace the Radiator Fan Relay.
Perform Powertrain Verification Test VER-5A.
10 If there are no potential causes remaining, the PCM is assumed to be defective.
View repair options.All
Repair
Replace the PCM.
Perform Powertrain Verification Test VER-5A.
205
DRIVEABILITY
P-1491 RADIATOR FAN CONTROL RELAY CIRCUIT ÐContinued
ProCarManuals.com

POWERTRAIN CONTROL MODULE C2 - GRAY 40 WAYCAV CIRCUIT FUNCTION
41 V37 18RD/LG SPEED CONTROL SWITCH SIGNAL
42 C18 18DB A/C PRESSURE SIGNAL
43 K4 18BK/LB SENSOR GROUND
44 K7 18OR 8V SUPPLY
45 - -
46 A14 18RD/WT FUSED B(+)
47 - -
48 K40 18BR/WT IDLE AIR CONTROL NO. 3 DRIVER
49 K60 18L/BK IDLE AIR CONTROL NO. 2 DRIVER
50 Z12 18BK/TN GROUND
51 K141 18TN/WT OXYGEN SENSOR 1/2 SIGNAL
52 - -
53 - -
54 - -
55 - -
56 V36 18TN.RD (EXCEPT
3.0L)SPEED CONTROL VACUUM SOLENOID CONTROL
57 K39 18GY/RD IDLE AIR CONTROL NO. 1 DRIVER
58 K59 18VT/BK IDLE AIR CONTROL NO. 4 DRIVER
59 D1 18VT/BR CCD BUS (+)
60 D2 18WT/BK CCD BUS (-)
61 K6 18VT/WT 5V SUPPLY
62 K29 18WT/PK BRAKE SWITCH SENSE
63 T10 18YL/DG (EATX) TORQUE MANAGEMENT REQUEST SENSE
64 C13 18DB/OR A/C COMPRESSOR CLUTCH RELAY CONTROL
65 D21 18PK SCI TRANSMIT
66 G7 18WT/OR VEHICLE SPEED SENSOR SIGNAL
67 K51 18DB/YL AUTOMATIC SHUT DOWN RELAY CONTROL
68 K52 18PK/BK DUTY CYCLE EVAP/PURGE SOLENOID CONTROL
69 - -
70 K70 18VT/RD (EXCEPT
3.0L)PULSE WIDTH MODULATED PURGE SENSE
71 - -
72 K107 18DB/WT (3.3L/3.8L) LEAK DETECTION PUMP SWITCH SENSE
72 K107 18YL/BK (2.4L ATX) LEAK DETECTION PUMP SWITCH SENSE
73 K173 14LG/DB RADIATOR FAN RELAY CONTROL
74 K31 18BR FUEL PUMP RELAY CONTROL
75 D20 18LG SCI RECEIVE
76 T41 18BK/WT (2.4L ATX) TRS T41 SENSE
76 T41 18BR/YL (EATX) TRS T41 SENSE
77 K106 18WT/DG (EXCEPT
3.0L)LEAK DETECTION PUMP SOLENOID CONTROL
78 K54 18OR/BK (2.4L ATX) TORQUE CONVERTER CLUTCH SOLENOID CONTROL
78 V36 18TN/RD (3.0L) SPEED CONTROL VACUUM SOLENOID CONTROL
79 - -
80 V35 18LG/RD SPEED CONTROL VENT SOLENOID CONTROL
RADIATOR FAN NO. 1 - BLACK 2 WAYCAV CIRCUIT FUNCTION
1 C23 12DG LOW SPEED RADIATOR FAN RELAY OUTPUT
2 Z1 12BK GROUND
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
350
CONNECTOR PINOUTS
ProCarManuals.com

RADIATOR FAN NO 2 - BLACK 2 WAYCAV CIRCUIT FUNCTION
1 C23 12DG LOW SPEED RADIATOR FAN RELAY OUTPUT
2 Z1 12BK GROUND
RADIATOR FAN RELAY - BLACK 4 WAYCAV CIRCUIT FUNCTION
1 Z1 14BK GROUND
2 K173 14LG/DB RADIATOR FAN RELAY CONTROL
3 C23 12DG LOW SPEED RADIATOR FAN RELAY OUTPUT
4 A16 12GY FUSED B(+)
SENTRY KEY IMMOBILIZER MODULE - BLACK 6 WAYCAV CIRCUIT FUNCTION
1 F41 20PK/WT FUSED B(+)
2 Z2 20BK GROUND
3 F87 20WT/BK FUSED IGNITION SWITCH OUTPUT (ST-RUN)
4- -
5 D2 20WT/BK CCD BUS (-)
6 D1 20VT/BR CCD BUS (+)
THROTTLE POSITION SENSOR (2.0L) - BLACK 3 WAYCAV CIRCUIT FUNCTION
1 K4 18BK/LB SENSOR GROUND
2 K22 18OR/DB THROTTLE POSITION SENSOR SIGNAL
3 K6 18VT/WT 5V SUPPLY
C
O
N
N
E
C
T
O
R
P
I
N
O
U
T
S
351
CONNECTOR PINOUTS
ProCarManuals.com