Pcm Messages Not Received - Dodge ZB 2005 Service Manual

Symptom:

PCM MESSAGES NOT RECEIVED

When Monitored and Set Condition:
PCM MESSAGES NOT RECEIVED
When Monitored: With the ignition is in the run position.
Set Condition: The BCM does not receive any messages from the PCM for at least 5
seconds.
PCM MESSAGE NOT RECEIVED
ATTEMPT TO COMMUNICATE WITH THE PCM
PCI BUS CIRCUIT OPEN
POWERTRAIN CONTROL MODULE
TEST
1 Turn the ignition on.
With the DRBIII , enter Instrument Cluster, System Tests then PCM Monitor.
Does the DRBIII display: PCM is active on BUS?
Yes → Erase the DTC, if DTC resets, replace the Body Control Module in
→ Go To 2
No
2 Turn the ignition on.
With the DRBIII , attempt to communicate with the PCM.
Was the DRBIII able to communicate with the PCM?
Yes → Go To 3
→ Refer to the communication category and perform the appropriate
No
3 Turn the ignition off.
Disconnect the PCM harness connector.
Measure the resistance of the PCI Bus circuit between the DLC and the PCM
connector.
Is the resistance below 5.0 ohms?
Yes → Replace and program the Powertrain Control Module in accor-
→ Repair the PCI Bus circuit for an open.
No
POSSIBLE CAUSES
ACTION
accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
symptom.
Perform BODY VERIFICATION TEST - VER 1.
dance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
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COMMUNICATION
APPLICABILITY
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All
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