2007 Liberty KJ Factory Service Manual 8 - ELECTRICAL

NO BCM MESSAGES RECEIVED

For a complete wiring diagram Refer to Section 8W.



Possible Causes
 
DTC PRESENT
 
NO RESPONSE - PCI BUS - BCM
 
ELECTRONIC VEHICLE INFORMATION CENTER
 




Diagnostic Test

1. DTC PRESENT

With the scan tool, erase DTCs.
Cycle the ignition and wait approximately 1 minute.
With the scan tool, read DTCs.

Did this DTC reset?

Yes


No

2. ELECTRONIC VEHICLE INFORMATION CENTER

Turn the ignition on.
With the scan tool, attempt to I/D or communicate with the BCM.

Was the scan tool able to communicate with the BCM?

Yes


No