Chrysler 300M 2002 Service Manual page 2705

DRIVEABILITY - NGC
Symptom:
P1687-NO CLUSTER BUS MESSAGE
When Monitored and Set Condition:
P1687-NO CLUSTER BUS MESSAGE
When Monitored: Ignition key on.
Set Condition: No messages received from the MIC (Instrument Cluster) for 20 seconds.
INTERMITTENT CONDITION
COMMUNICATE WITH CLUSTER
INSTRUMENT CLUSTER OPERATION
PCM
TEST
1 Turn the ignition on.
With the DRBIII , erase DTCs.
Cycle the ignition key on and off several times.
With the DRBIII , read DTCs.
Does the DTC reset?
Yes → Go To 2
→ Go To 4
No
2 Ignition on, engine not running.
With the DRBIII , attempt to communicate with the Instrument cluster.
Can communication be established with the Instrument Cluster?
Yes → Go To 3
→ Refer to the Communication Category and perform the appropri-
No
3 Start the engine
Allow the engine to idle.
Is the correct engine speed display in the instrument cluster (Tach)?
Yes → Replace and program the Powertrain Control Module in accor-
→ Refer to the Instrument Category and perform the appropriate
No
POSSIBLE CAUSES
ACTION
ate symptom related to no communication with cluster.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
symptom.
Perform POWERTRAIN VERIFICATION TEST VER - 1.
276
APPLICABILITY
All
All
All