2007 Liberty KJ Factory Service Manual 8 - ELECTRICAL

ITM-PCM MESSAGE NOT RECEIVED (EXPORT ONLY)

For a complete wiring diagram Refer to Section 8W



Possible Causes
 
BUS COMMUNICATION FAILURE
 
INTRUSION TRANSCEIVER MODULE (ITM)
 




Diagnostic Test

1. VERIFY THAT THE PCM AND BCM ARE ACTIVE ON THE BUS

Turn the ignition on.
With the scan tool, verify that the PCM and BCM are active on the bus.

Are both modules active on the bus?

Yes


No

2. VERIFY THAT THE DTC IS ACTIVE

With the scan tool, erase ITM DTCs.
Turn the ignition off.
Arm the VTSS and wait one minute.
Disarm the VTSS and turn the ignition on.
With the scan tool, read ITM DTCs.

Did this DTC reset?

Yes


No