Jeep Liberty KJ. Manual — part 330
PCI BUS CIRCUIT SHORT TO VOLTAGE
For a complete wiring diagram Refer to Section 8W.
8T - 42
NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS
KJ
•
When Monitored:
With the ignition on.
•
Set Condition:
The Hands Free Module detected a short to voltage on the (D25) PCI Bus circuit.
Possible Causes
(D25) PCI BUS CIRCUIT SHORTED TO VOLTAGE
HANDS FREE MODULE
Diagnostic Test
1.
CHECK FOR AN INTERMITTENT CONDITION
NOTE: For this code to be active, the scan tool will not be able to communicate with any modules on the
vehicle (except any CAN Bus module).
NOTE: Clear the DTC. If this DTC continues to set and the scan tool can still communicate with the module,
it will be necessary to replace the module.
NOTE: The conditions that set the DTC are not present at this time. The following list may help in identi-
fying the intermittent condition.
With the engine running at normal operating temperature, wiggle the wiring harnesses. This is to try and duplicate
the complete bus failure condition.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
Were any of the above conditions present?
Yes
>> Repair as necessary.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
No
>> Test complete.
KJ
NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS
8T - 43
PCI BUS INTERNAL ERROR
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
The Hands Free Module detects a fault during an internal diagnostic check.
Possible Causes
HANDS FREE MODULE
Diagnostic Test
1.
ERASE DTC AND ATTEMPT TO RESET
Turn the ignition on.
With the scan tool, read and record the HFM DTC’s and then erase the DTC’s.
Perform 5 ignition key cycles, leaving the ignition key on for a minimum of 90 seconds per cycle.
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 - 44
NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS
KJ
PHONE SWITCH STUCK
For a complete wiring diagram Refer to Section 8W.
KJ
NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS
8T - 45
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