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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 - VIN MESSAGE NOT 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 --> Go To 2
No --> Refer to the COMMUNICATION CATEGORY  for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1  .		 All
2 Turn the ignition on.
With the DRBIII®, select System Monitors then J1850 Module Scan.
Is the PCM one of the modules present on the bus?
Yes --> Go To 3
No --> Refer to the COMMUNICATION CATEGORY  for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1  .		 All
3 With the DRBIII®, erase DTC's.
Cycle the ignition switch from off to on and wait approximately 1 minute.
With the DRBIII®, read DTC's.
Did this DTC reset?
Yes --> Replace the Hands Free Module in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1  .
No --> Test Complete.		 All
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