CHRYSLER VOYAGER 2000 Diagnostic Manual

TEST ACTION APPLICABILITY
3 Ignition Off
Disconnect the A/C Pressure Sensor.
Note: Check connectors - Clean/repair as necessary.
Connect a Jumper Wire between the A/C Pressure Sensor Signal Circuit and Sensor
Ground Circuit.
Ignition on with engine not running.
With the DRB, read the A/C Pressure Sensor voltage.
Is the voltage below 1.0 volt?All
Ye s®Replace the A/C Pressure Sensor.
Perform Powertrain Verification Test VER-2A.
No®Go To 4
4 Ignition Off
Disconnect the A/C Sensor Electrical Connector.
Note: Check connectors - Clean/repair as necessary.
Connect a Jumper Wire between the A/C Pressure Sensor Signal Circuit and Engine
Ground.
Ignition on, engine not running.
With the the DRB, read the A/C Pressure Sensor voltage.
Is the voltage below 1.0 volt?All
Ye s®Repair the open Sensor Ground Circuit.
Perform Powertrain Verification Test VER-2A.
No®Go To 5
5 Ignition Off.
Disconnect the A/C Pressure Sensor.
Note: Check connectors - Clean/repair as necessary.
Disconnect the PCM.
Using an Ohmmeter, measure the A/C Pressure Sensor Signal Circuit from the PCM
to the Sensor.
Is the resistance below 5.0 ohms?All
Ye s®Go To 6
No®Repair the open A/C Presure Sensor Circuit.
Perform Powertrain Verification Test VER-2A.
6 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-2A.
7 Ignition On, Engine Not Running.
With the DRB, read the A/C Pressure Sensor voltage.
Using the schematic as a guide, wiggle the A/C Pressure Sensor Connector and
Harness.
Monitor the DRB display.
Was there any A/C Pressure Sensor voltage change?All
Ye s®Repair the Harness or Connector that caused the voltage to
change.
Perform Powertrain Verification Test VER-2A.
No®Go To 8
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P-1598 A/C PRESSURE SENSOR VOLTS TOO HIGH ÐContinued
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TEST ACTION APPLICABILITY
8 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-2A.
No®Test Complete.
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P-1598 A/C PRESSURE SENSOR VOLTS TOO HIGH ÐContinued
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Symptom:
P-1599 A/C PRESSURE SENSOR VOLTS TOO LOW
When Monitored and Set Condition:
P-1599 A/C PRESSURE SENSOR VOLTS TOO LOW
When Monitored: With the ignition switch on, the engine running , and the A/C relay
energized.
Set Condition: The A/C pressure sensor signal voltage at PCM cavity 42 goes below 0.5
volt, or the voltage is below .059 volt.
POSSIBLE CAUSES
A/C PRESSURE SENSOR 5-VOLT SUPPLY CKT OPEN
A/C PRESS SEN CONN AND WIRING HARN OBSERVABLE DEF
A/C PRESSURE SEN SIG CKT SHORTED TO SEN GND CKT
A/C PRESSURE SENSOR CONN AND WIRING HARN INTER DEF
A/C PRESSURE SENSOR SIGNAL CKT SHORTED TO GND
A/C PRESSURE SENSOR DEFECTIVE
PCM DEF (A/C PRESSURE SEN)
TEST ACTION APPLICABILITY
1 Ignition On, Engine Not Running
With the DRB, read the A/C Pressure Sensor voltage.
Is the A/C Pressure Sensor voltage below 0.2 volt?All
Ye s®Go To 2
No®Go To 7
2 Ignition Off
Disconnect the A/C Pressure Sensor Connector.
Note: Check connectors - Clean/repair as necessary.
Ignition on with engine not running.
Using a Voltmeter, measure the 5-Volt Supply Circuit.
Is the A/C Pressure Sensor 5-volt Supply Circuit above 4.9 volts?All
Ye s®Go To 3
No®Repair the open 5-Volt Supply Circuit.
Perform Powertrain Verification Test VER-2A.
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TEST ACTION APPLICABILITY
3 Ignition Off
Disconnect the A/C Pressure Sensor Connector.
Note: Check connectors - Clean/repair as necessary.
Ignition on with engine not running.
With the DRB , read the A/C Pressure Sensor voltage.
Is the A/C Pressure Sensor voltage above 4.5 volts?All
Ye s®Replace the A/C Pressure Sensor.
Perform Powertrain Verification Test VER-2A.
No®Go To 4
4 Ignition Off
Disconnect the Powertrain Control Module.
Disconnect the A/C Pressure Sensor Connector.
Note: Check connectors - Clean/repair as necessary.
Using an Ohmmeter ,test the resistance between the A/C Pressure Sensor Signal
Circuit and Sensor Ground Circuit.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Sensor Signal Circuit shorted to the Sensor Ground
Circuit.
Perform Powertrain Verification Test VER-2A.
No®Go To 5
5 Ignition Off
Disconnect the Powertrain Control Module.
Disconnect the A/C Pressure Sensor Connector.
Note: Check connectors - Clean/repair as necessary.
Using an Ohmmeter, measure the A/C Pressure Sensor Signal Circuit to ground.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Sensor Signal Circuit for a short to ground.
Perform Powertrain Verification Test VER-2A.
No®Go To 6
6 Ignition off.
If there are no potential causes remaining, the PCM is assumed to be defective.
View repair options.All
Repair
Replace the Powertrain Control Module.
Perform Powertrain Verification Test VER-2A.
7 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-2A.
No®Go To 8
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P-1599 A/C PRESSURE SENSOR VOLTS TOO LOW ÐContinued
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TEST ACTION APPLICABILITY
8 Ignition On, Engine Not Running
Use the Schematic as a guide, wiggle A/C Pressure Sensor Connector and Harness.
Monitor the DRB display.
Was there an A/C Pressure Sensor voltage change?All
Ye s®Repair the Harness or Connector that caused the voltage to
change.
Perform Powertrain Verification Test VER-2A.
No®Test Complete.
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P-1599 A/C PRESSURE SENSOR VOLTS TOO LOW ÐContinued
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Symptom:
P-1695 NO CCD MESSAGE FROM BODY CONTROLLER
When Monitored and Set Condition:
P-1695 NO CCD MESSAGE FROM BODY CONTROLLER
When Monitored: Anytime the engine is running.
Set Condition: No CCD messages are received from the BCM for 30 seconds.
POSSIBLE CAUSES
CCD BUS (+) CIRCUIT OPEN
CCD BUS (-) CIRCUIT OPEN
WIRING HARNESS OBSERVABLE DEFECT
BCM9NO RESPONSE9
PCM DEF (NO CCD MSG)
TEST ACTION APPLICABILITY
1 Ignition on with engine not running.
Erase trouble codes.
Start engine and allow to run for 1 minute.
With the DRB, read trouble codes.
Does display show9No CCD messages from Body Control Module9and a start run
counter of zero?All
Ye s®Go To 2
No®Go To 6
2 Ignition off.
Disconnect the PCM Connectors.
Disconnect the BCM Connectors.
Note: Check Connectors - clean/repair as necessary.
Using an ohmmeter, measure the CCD Bus (+) Circuit from the PCM to the BCM.
Is the resistance below 5.0 ohms?All
Ye s®Go To 3
No®Repair the open CCD Bus (+) Ckt between BCM and PCM.
Perform Verification Test VER-2A.
3 Ignition off.
Disconnect the PCM Connectors.
Disconnect the BCM Connectors.
Note: Check Connectors - clean/repair as necessary.
Using an ohmmeter, measure the CCD (-) Circuit for resistance from PCM to the
BCM.
Is the resistance below 5.0 ohms?All
Ye s®Go To 4
No®Repair the open CCD Bus (-) Ckt between BCM and PCM.
Perform Verification Test VER-2A.
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TEST ACTION APPLICABILITY
4 Ignition on with engine not running.
With the DRB, select BCM.
Does the DRB display show9No response9?All
Ye s®Replace the BCM.
Perform Verification Test VER-2A.
No®Go To 5
5 If there are no potential causes remaining, the PCM is assumed to be defective.
View repair options.All
Repair
Replace the PCM.
Perform Verification Test VER-2A.
6 Ignition off.
Using the schematic as a guide, inspect the Wiring and Connectors.
Were any problems found?All
Ye s®Repair as necessary.
Perform Verification Test VER-2A.
No®Test Complete.
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P-1695 NO CCD MESSAGE FROM BODY CONTROLLER ÐContinued
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Symptom List:
P-1696 PCM FAILURE EEPROM WRITE DENIED
P-1697 PCM FAILURE SRI MILE NOT STORED
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P-1696 PCM FAILURE EEPROM
WRITE DENIED.
POSSIBLE CAUSES
POWERTRAIN CONTROL MODULE DEFECTIVE9WRITE REFUSED9
SRI MEMORY / INSTRUMENT PANEL ODO MILEAGE SAME
SRI MEMORY9SRI MILEAGE INVALID9
SRI MEMORY NEEDS UPDATING
PCM DEFECTIVE9WRITE FAILURE9
TEST ACTION APPLICABILITY
1 Ignition on, engine not running.
With the DRB, perform the SRI Memory Test.
Does the DRB display9Write Refused9?All
Ye s®Go To 2
No®Go To 4
2 Ignition on, engine not running.
With the DRB, perform the SRI Memory Test.
Does the DRB display9Write Failure?9All
Ye s®Replace the Powertrain Control Module.
Perform Verification Test VER-2A.
No®Go To 3
3 Ignition on, engine not running.
With the DRB, perform the SRI Memory Test.
Note: Retest the SRI Memory two more times when necessary.
Did the trouble code9Write Refused9return?All
Ye s®Replace the Powertrain Control Module.
Perform Powertrain Verification Test VER-2A.
No®Test Complete.
4 Ignition on, engine not running.
With the DRB, perform the SRI Memory Test.
Does the DRB display9SRI Mileage Invalid?9All
Ye s®Update the mileage and retest the SRI Memory.
Perform Powertrain Verification Test VER-2A.
No®Go To 5
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TEST ACTION APPLICABILITY
5 Ignition on, engine not running.
With the DRB, perform the SRI Memory Test.
Does the DRB display9Write Failure?9All
Ye s®Replace the Powertrain Control Module.
Perform Verification Test VER-2A.
No®Go To 6
6 Ignition on, engine not running.
Compare SRI mileage stored value to the Instrument Panel Odometer mileage.
Is the mileage the same?All
Ye s®Retest the SRI Memory.
Perform Powertrain Verification Test VER-2A.
No®Go To 7
7 Ignition off.
If there are no potential causes remaining, the SRI Memory is assumed to be in need
of updating.
View repair options.All
Repair
Update the mileage and retest the SRI Memory.
Perform Powertrain Verification Test VER-2A.
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P-1696 PCM FAILURE EEPROM WRITE DENIED ÐContinued
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Symptom:
P-1698 NO CCD MESSAGES FROM TCM
When Monitored and Set Condition:
P-1698 NO CCD MESSAGES FROM TCM
When Monitored: With the engine running.
Set Condition: No CCD messages are received from the TCM for 10 seconds.
POSSIBLE CAUSES
DRB DOES NOT SHOW BUS OPERATIONAL
CCD WIRING HARNESS OBSERVABLE DEFECT
CCD BUS (+) CIRCUIT OPEN BETWEEN PCM AND TCM
CCD BUS (-) CIRCUIT OPEN BETWEEN PCM AND TCM
PCM DEFECTIVE (NO CCD MESSAGE)
TCM DEFECTIVE (NO CCD MESSAGE)
TEST ACTION APPLICABILITY
1 Ignition On
With the DRB, select9Transmission9.
Note: The CCD Bus test is automatic.
Does the DRB show9Bus Operational9?All
Ye s®Go To 2
No®Go to the appropriate symptom group for body diagnostics.
2 Ignition Off
With the DRB, select9Engine9module.
With the DRB erase trouble codes.
Raise all four wheels off the ground and properly support the vehicle.
Caution: Keep clear of rotating wheels in the next step.
Start the engine. Place the Shift Lever in Drive and allow the wheels to rotate for 1
minute.
Step on the brakes, put the Shift Lever back in Park.
With the DRB read Trouble Codes.
Does display show9No CCD Message from TCM9and the start run counter equal to
zero?All
Ye s®Go To 3
No®Go To 7
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