Chrysler Pacifica. Manual — part 88
TEST
ACTION
APPLICABILITY
4
With the DRB, erase DTC’s.
Cycle the ignition switch from off to on and wait approximately 1 minute.
Operate the liftgate with either the key fob or the overhead console.
With the DRB, read DTC’s.
Did this DTC reset?
All
Yes
→ Replace the Body Control Module in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
349
COMMUNICATION
LIFTGATE MODULE MESSAGES NOT RECEIVED —
Continued
Symptom:
MEMORY SEAT MODULE RESPONSE INCORRECTLY
When Monitored and Set Condition:
MEMORY SEAT MODULE RESPONSE INCORRECTLY
When Monitored:
Continuously.
Set Condition:
The door module receives a message, but not with the requested data.
Time to mature for the DDM and PDM is 3.75ms.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE MEMORY SEAT MODULE
READ DTCS
CLEAR DTC
OBSERVE THE SEAT SWITCH INPUT TO THE DOOR MODULE
MEMORY SEAT MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, attempt to communicate with the memory seat module.
Was the DRB able to I/D or communicate with the memory seat module?
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, read the door module DTC’s.
Are any seat switch related DTCs set?
All
Yes
→ Refer to the appropriate category and perform the related symp-
tom.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
With the DRB, erase DTC’s.
Cycle the ignition switch from off to on.
Operate the seat switches in all directions.
With the DRB, read DTC’s.
Did this DTC reset?
All
Yes
→ Go To 4
No
→ No problem found at this time. Refer to the wiring diagrams
located in the service information for any possible intermittent
wiring problems.
Perform BODY VERIFICATION TEST - VER 1.
350
COMMUNICATION
TEST
ACTION
APPLICABILITY
4
With the DRB, observe the seat switch voltage in the appropriate door module.
Operate the seat switch in all directions while observing the DRB.
Does the seat switch voltage change in each seat switch position?
All
Yes
→ Replace the Memory Seat Module in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Check the circuits between the seat switch and the door module.
If ok, replace the seat switch and retest. If after replacement of
the seat switch condition is not corrected replace the door module
that set this DTC.
Perform BODY VERIFICATION TEST - VER 1.
351
COMMUNICATION
MEMORY SEAT MODULE RESPONSE INCORRECTLY —
Continued
Symptom:
MIC MESSAGES NOT RECEIVED
When Monitored and Set Condition:
MIC MESSAGES NOT RECEIVED
When Monitored:
With the ignition in run.
Set Condition:
The module does not receive any messages from the MIC. Time to mature
for the BCM, DDM, IPM and PDM is 5 seconds.
POSSIBLE CAUSES
CHECK FOR DTCS
VERIFY DTC
ATTEMPT TO COMMUNICATE WITH THE MIC
MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, read BCM DTC’s.
Are any Cluster Wakeup Output DTC’s set?
All
Yes
→ Refer to symptom list for problems related to the cluster wakeup
circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition on.
With the DRBIII
t, erase DTC’s.
With the DRBIII
t, read 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 DRBIII
t, attempt to communicate with the Instrument Cluster (MIC).
Was the DRBIII
t able to I/D or communicate with the Instrument Cluster (MIC)?
All
Yes
→ Go To 4
No
→ Refer to the Communication category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
352
COMMUNICATION
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