Chrysler Pacifica. Manual — part 87
Symptom:
INTERNAL IPM FAILURE
When Monitored and Set Condition:
INTERNAL IPM FAILURE
When Monitored:
Continuously.
Set Condition:
Time to mature is 125ms.
POSSIBLE CAUSES
INTERNAL IPM FAILURE
TEST
ACTION
APPLICABILITY
1
Connect the DRB to the Data Link Connector.
Turn the ignition on.
With the DRB, erase DTC’s.
Turn the ignition off then turn the ignition on and wait approximately 1 minute.
With the DRB, read DTC’s.
Did this DTC reset?
All
Yes
→ Replace the IPM in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
345
COMMUNICATION
Symptom:
INTERNAL PDM FAILURE
When Monitored and Set Condition:
INTERNAL PDM FAILURE
When Monitored:
Continuously.
Set Condition:
Time to mature is 125ms.
POSSIBLE CAUSES
INTERNAL PDM FAILURE
TEST
ACTION
APPLICABILITY
1
Connect the DRB to the Data Link Connector.
Turn the ignition on.
With the DRB, erase DTC’s.
Turn the ignition off then turn the ignition on and wait approximately 1 minute.
With the DRB, read DTC’s.
Did this DTC reset?
All
Yes
→ Replace the PDM in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
346
COMMUNICATION
Symptom:
IPM MESSAGES NOT RECEIVED
When Monitored and Set Condition:
IPM MESSAGES NOT RECEIVED
When Monitored:
With the ignition in run, start or unlock.
Set Condition:
The module does not receive any messages from the IPM. Time to mature
for the BCM, DDM and PDM is 5 seconds.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE INTERGRATED POWER MODULE
MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, attempt to communicate with the IPM.
Was the DRB able to I/D or communicate with the IPM?
All
Yes
→ Go To 2
No
→ Refer to the Communication category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
2
With the DRB, erase DTC’s.
Cycle the ignition switch from off to on and wait approximately 1 minute.
With the DRB, read DTC’s.
Did this DTC reset?
All
Yes
→ Replace the module which set the DTC in accordance with the
service information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
347
COMMUNICATION
Symptom:
LIFTGATE MODULE MESSAGES NOT RECEIVED
When Monitored and Set Condition:
LIFTGATE MODULE MESSAGES NOT RECEIVED
When Monitored:
When the Body Control Module is awake.
Set Condition:
The BCM does not receive any messages from the power liftgate module.
Time to mature for the BCM is 1 second.
POSSIBLE CAUSES
CHECK FOR DTCS
VERIFY DTC
ATTEMPT TO COMMUNICATE WITH THE POWER LIFTGATE MODULE
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, read BCM DTC’s.
Are any Liftgate Wakeup Output DTC’s set?
All
Yes
→ Refer to symptom list for problems related to the Liftgate wakeup
circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition on.
With the DRBIII
t, erase DTC’s.
Operate the liftgate with either the key fob or the overhead console.
With the DRBIII
t, read BCM DTC’s.
Did this DTC reset?
All
Yes
→ Go To 3
No
→ The condition that caused this DTC is currently not present. Use
the wiring diagrams/schematic as a guide, and inspect the related
wiring harness for a possible intermittent.
Perform BODY VERIFICATION TEST - VER 1.
3
Turn the ignition on.
With the DRB, attempt to communicate with the Power Liftgate Module.
Was the DRB able to I/D or communicate with the Power Liftgate Module?
All
Yes
→ Go To 4
No
→ Refer to the Communication category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
348
COMMUNICATION
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