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Dodge ZB 2005 - Pcm Messages Not Received

Dodge ZB 2005
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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.
POSSIBLE CAUSES
PCM MESSAGE NOT RECEIVED
ATTEMPT TO COMMUNICATE WITH THE PCM
PCI BUS CIRCUIT OPEN
POWERTRAIN CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, enter Instrument Cluster, System Tests then PCM Monitor.
Does the DRBIIIt display: PCM is active on BUS?
All
Yes Erase the DTC, if DTC resets, replace theBody Control Module in
accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1.
No Go To 2
2 Turn the ignition on.
With the DRBIIIt, attempt to communicate with the PCM.
Was the DRBIIIt able to communicate with the PCM?
All
Yes Go To 3
No Refer to the communication category and perform the appropriate
symptom.
Perform BODY VERIFICATION TEST - VER 1.
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?
All
Yes Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
No Repair the PCI Bus circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
153
COMMUNICATION

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