Chrysler Town, Dodge Caravan. Manual — part 780
Symptom:
RADIO MEM MSG NOT RECEIVED
When Monitored and Set Condition:
RADIO MEM MSG NOT RECEIVED
When Monitored:
With the ignition in run, and the IOD fuse installed.
Set Condition:
The BCM does not receive any radio memory messages.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE RADIO
CHECK THE MEMORY SYSTEM
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, attempt to communicate with the Radio.
Was the DRB able to I/D or communicate with the Radio?
All
Yes
→ Go To 2
No
→ Refer to the Communication category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
2
Turn the ignition on.
Operate the memory seat system.
Did the memory seat system operate properly?
All
Yes
→ Go To 3
No
→ Refer to the Memory Seat category and perform the appropriate
symptom.
Perform BODY VERIFICATION TEST - VER 1.
3
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 Body Control Module in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
356
COMMUNICATION
Symptom:
RIGHT PSD MESSAGES NOT RECEIVED
When Monitored and Set Condition:
RIGHT PSD MESSAGES NOT RECEIVED
When Monitored:
When the Body Control Module is awake.
Set Condition:
The BCM does not sense a response from the Right Power Sliding Door
Module.
POSSIBLE CAUSES
CHECK FOR DTCS
VERIFY DTC
ATTEMPT TO COMMUNICATE WITH THE RIGHT SLIDING DOOR CONTROL MODULE
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, read BCM DTC’s.
Are any IOD Wakeup power sliding door DTC’s set?
All
Yes
→ Refer to symptom list for problems related to the IOD 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 right power sliding door 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 Right Sliding Door Control Module.
Was the DRB able to I/D or communicate with the Right Sliding Door Control
Module?
All
Yes
→ Go To 4
No
→ Refer to the Communication category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
357
COMMUNICATION
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 right power sliding door 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.
358
COMMUNICATION
RIGHT PSD MESSAGES NOT RECEIVED —
Continued
Symptom:
SKIM MESSAGES NOT RECEIVED
When Monitored and Set Condition:
SKIM MESSAGES NOT RECEIVED
When Monitored:
With the ignition in run, and the IOD fuse installed.
Set Condition:
The BCM does not receive any messages from the Sentry Key Immobilizer
Module (SKIM) for at least 5 seconds.
POSSIBLE CAUSES
ATTEMPT TO COMMUNICATE WITH THE SENTRY KEY IMMOBILIZER MODULE
BODY CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRB, attempt to communicate with the SKIM.
Was the DRB able to I/D or communicate with the SKIM?
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 Body Control Module in accordance with the service
information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
359
COMMUNICATION
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