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Diagnostic Procedure

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC PROCEDURE - NO PCM BUS MESSAGES RECEIVED

TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIII®, attempt to communicate with the PCM.
Was the DRBIII® able to I/D or communicate with the PCM?
Yes --> The condition is not present at this time. Monitor DRBIII® parameters while wiggling the related wire harness. Refer to any Technical Service Bulletins that may apply. Visually inspect the related wiring harness and connector terminals.
Perform BODY VERIFICATION TEST - VER 1  .
No --> Refer to the COMMUNICATION CATEGORY  for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1  .		 All
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