CHRYSLER VOYAGER 2001 Service Manual

TEST ACTION APPLICABILITY
3 Turn the ignition on.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay the ACCESSORY POWER OUTPUT #1 OPEN trouble
code?All
Ye s®Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 4
4 Turn the ignition on.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay the ACCESSORY POWER OUTPUT #2 OPEN trouble
code?All
Ye s®Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®This symptom represents an internal malfunction in the Front
Control Module. The condition that caused this symptom is
currently not present.
Perform BODY VERIFICATION TEST - VER 1.
622
INTELLIGENT POWER MODULE
ACCESSORY POWER OUTPUT #2 OPEN ÐContinued

Symptom:
ACCESSORY POWER OUTPUT #2 SHORTED TO BATTERY
When Monitored and Set Condition:
ACCESSORY POWER OUTPUT #2 SHORTED TO BATTERY
When Monitored: Continuously with the ignition on.
Set Condition: The FCM has detected a short to battery voltage in the Accessory Relay
control circuit.
POSSIBLE CAUSES
FRONT CONTROL MODULE
FUSE & RELAY CENTER INTERNAL MALFUNCTION
ACCESSORY RELAY
FRONT CONTROL MODULE
INTERMITTENT CONDITION
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, erase the current Front Control Module DTC's.
Turn the ignition off, wait 10 seconds then turn the ignition on.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay both ACCESSORY POWER OUTPUT SHORTED TO
BATTERY trouble codes?All
Ye s®Go To 2
No®Go To 3
2 Turn the ignition off.
Disconnect the Accessory Relay from the Fuse & Relay Center.
Connect a known good relay to the Accessory Relay location in the Fuse & Relay
Center.
Turn the ignition on.
With the DRBIIIt, erase the current Front Control Module DTC's.
Turn the ignition off, wait 10 seconds then turn the ignition on.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay both ACCESSORY POWER OUTPUT SHORTED TO
BATTERY trouble codes?All
Ye s®Replace the Fuse and Relay Center.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the original Accessory Relay.
Perform BODY VERIFICATION TEST - VER 1.
623
INTELLIGENT POWER MODULE

TEST ACTION APPLICABILITY
3 Turn the ignition on.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay the ACCESSORY POWER OUTPUT #1 SHORTED TO
BATTERY trouble code?All
Ye s®Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 4
4 Turn the ignition on.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay the ACCESSORY POWER OUTPUT #2 SHORTED TO
BATTERY trouble code?All
Ye s®Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®This symptom represents an internal malfunction in the Front
Control Module. The condition that caused this symptom is
currently not present.
Perform BODY VERIFICATION TEST - VER 1.
624
INTELLIGENT POWER MODULE
ACCESSORY POWER OUTPUT #2 SHORTED TO BATTERY ÐContinued

Symptom:
CPA NOT ENGAGED
When Monitored and Set Condition:
CPA NOT ENGAGED
When Monitored: Continuously with the ignition on.
Set Condition: If the connector positive assurance lock is not fully engaged, the Front
Control Module will detect battery voltage on the B(+) Sense circuit. With voltage present,
the FCM determines that there is a poor connection at connector C5 of the Fuse and Relay
Center.
POSSIBLE CAUSES
FRONT CONTROL MODULE INTERNAL MALFUNCTION
FUSE AND RELAY CENTER INTERNAL MALFUNCTION
INTERMITTENT CONDITION
CONNECTOR POSITIVE ASSURANCE LOCK
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, erase the current Front Control Module DTC's.
Turn the ignition off, wait 10 seconds then turn the ignition on.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay: CPA NOT ENGAGED?All
Ye s®Go To 2
No®The condition that caused this symptom is currently not present.
Inspect the related wiring harness for a possible intermittent
condition.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Front Control Module from the Fuse and Relay Center.
Measure the voltage of the B(+) Sense circuit at the Fuse and Relay Center side of the
FCM connector.
Is the voltage above 10.0 volts?All
Ye s®Go To 3
No®Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
625
INTELLIGENT POWER MODULE

TEST ACTION APPLICABILITY
3 Turn the ignition off.
Inspect connector C5 on the Fuse and Relay Center, ensure the connector lock is
properly seated into the connector.
Measure the voltage of the B(+) Sense circuit at the Fuse and Relay Center side of the
FCM connector.
Is the voltage above 10.0 volts?All
Ye s®Replace the Fuse and Relay Center.
Perform BODY VERIFICATION TEST - VER 1.
No®Verify the Connector Positive Assurance lock is correctly seated.
Perform BODY VERIFICATION TEST - VER 1.
626
INTELLIGENT POWER MODULE
CPA NOT ENGAGED ÐContinued

Symptom:
IGN RUN/START INPUT WIRING
When Monitored and Set Condition:
IGN RUN/START INPUT WIRING
When Monitored: With the ignition on and battery voltage greater than 10.4 volts.
Set Condition: The Fused Ignition Switch Output circuit voltage at the FCM goes below
0.5 volts.
POSSIBLE CAUSES
TEST FOR CURRENT DTC'S
FRONT CONTROL MODULE INTERNAL MALFUNCTION
FUSE AND RELAY CENTER INTERNAL MALFUNCTION
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
TEST ACTION APPLICABILITY
1 With the DRBIIIt, record and erase the current Front Control Module DTC's.
Cycle the ignition from ON to OFF.
Start the vehicle and observe the DRBIIIt.
With the DRBIIIt, read DTC's.
Does the DRBIIItdisplay: IGNITION RUN-START INPUT WIRING?All
Ye s®Go To 2
No®The condition that caused this DTC is currently not present. Use
the wiring diagram/schematic as a guide, and inspect the related
wiring harness for a possible intermittent condition.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Front Control Module from the Fuse and Relay Center.
Measure the voltage of the Fused Ignition Switch Output circuit (cavity 37) at the
Fuse and Relay Center side of the FCM connector.
Turn the ignition on.
Is the voltage above 10.0 volts?All
Ye s®Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
627
INTELLIGENT POWER MODULE

TEST ACTION APPLICABILITY
3 Turn the ignition off.
Gain access to the bottom of the Fuse and Relay Center.
Disconnect connector C9 from the Fuse and Relay Center.
Measure the resistance of the Fused Ignition Switch Output circuit between the FCM
connector cavity 37 and the Fuse and Relay Center connector C9 cavity 2.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Fused Ignition Switch Output circuit for an open
between the Fuse and Relay Center and the ignition switch.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Fuse and Relay Center.
Perform BODY VERIFICATION TEST - VER 1.
628
INTELLIGENT POWER MODULE
IGN RUN/START INPUT WIRING ÐContinued

Symptom:
IGNITION START INPUT WIRING
When Monitored and Set Condition:
IGNITION START INPUT WIRING
When Monitored: With the ignition on and battery voltage greater than 10.4 volts.
Set Condition: The Fused Ignition Switch Output (Start) circuit voltage at the FCM goes
below 0.5 volts.
POSSIBLE CAUSES
TEST FOR CURRENT DTC'S
FRONT CONTROL MODULE INTERNAL MALFUNCTION
FUSE AND RELAY CENTER INTERNAL MALFUNCTION
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
TEST ACTION APPLICABILITY
1 With the DRBIIIt, record and erase the current Front Control Module DTC's.
Cycle the ignition from ON to OFF.
Start the vehicle and observe the DRBIIIt.
With the DRBIIIt, read DTC's.
Does the DRBIIItdisplay: IGNITION START INPUT WIRING?All
Ye s®Go To 2
No®The condition that caused this DTC is currently not present. Use
the wiring diagram/schematic as a guide, and inspect the related
wiring harness for a possible intermittent condition.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Front Control Module from the Fuse and Relay Center.
Measure the voltage of the Fused Ignition Switch Output circuit (cavity 37) at the
Fuse and Relay Center side of the FCM connector.
Turn the ignition on.
Is the voltage above 10.0 volts?All
Ye s®Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
629
INTELLIGENT POWER MODULE

TEST ACTION APPLICABILITY
3 Turn the ignition off.
Gain access to the bottom of the Fuse and Relay Center.
Disconnect connector C9 from the Fuse and Relay Center.
Measure the resistance of the Fused Ignition Switch Output circuit between the FCM
connector cavity 37 and the Fuse and Relay Center connector C9 cavity 2.
Is the resistance below 5.0 ohms?All
Ye s®Repair the Fused Ignition Switch Output circuit for an open
between the Fuse and Relay Center and the ignition switch.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Fuse and Relay Center.
Perform BODY VERIFICATION TEST - VER 1.
630
INTELLIGENT POWER MODULE
IGNITION START INPUT WIRING ÐContinued

Symptom:
INTERNAL DRIVER FAULT #1
When Monitored and Set Condition:
INTERNAL DRIVER FAULT #1
When Monitored: Continuously with the ignition on.
Set Condition: The Front Control Module has detected an internal malfunction of the
module.
POSSIBLE CAUSES
FRONT CONTROL MODULE INTERNAL MALFUNCTION
INTERMITTENT CONDITION
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, erase the current Front Control Module DTC's.
Turn the ignition off, wait 10 seconds then turn the ignition on.
With the DRBIIIt, read the current Front Control Module DTC's.
Does the DRBIIItdisplay: INTERNAL DRIVER FAULT #1?All
Ye s®Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
No®This symptom represents an internal malfunction in the Front
Control Module. The condition that caused this symptom is
currently not present.
Perform BODY VERIFICATION TEST - VER 1.
631
INTELLIGENT POWER MODULE