Jeep Liberty KJ. Manual - part 323
IGNITION POWER MESSAGE NOT RECEIVED
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
The Hands Free Module does not receive an ignition power status message from the Body Control Module
(BCM).
Possible Causes
LOST COMMUNICATION WITH BODY CONTROL MODULE (BCM)
HANDS FREE MODULE
Diagnostic Test
1.
ATTEMPT TO COMMUNICATE WITH THE BODY CONTROL MODULE (BCM)
Turn the ignition on.
With the scan tool, attempt to communicate with the BCM.
Was the scan tool able to communicate with the BCM?
Yes
>> Go To 2
No
>> (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) and
perform the related symptom.
2.
ERASE DTC AND ATTEMPT TO RESET
With the scan tool, erase the HFM DTC’s.
Cycle the ignition switch from off to on and wait approximately 1 minute.
With the scan tool, read the HFM DTC’s.
Did this DTC reset?
Yes
>> Replace and program the Hands Free Module in accordance with the service information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
No
>> The condition that set this DTC is no longer present. Using the wiring diagram/schematic as a guide,
inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness con-
nectors for broken, bent, pushed out, and corroded terminals.
8T - 14
NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS
KJ