Jeep Liberty KJ. Manual — part 329

PCI BUS CIRCUIT OPEN

For a complete wiring diagram Refer to Section 8W.

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NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS

KJ

•

When Monitored:
With the ignition on.

•

Set Condition:
The Hands Free Module detected an open on the (D25) PCI Bus circuit.

Possible Causes

(D25) PCI BUS CIRCUIT OPEN

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 - 39

PCI BUS CIRCUIT SHORT TO GROUND

For a complete wiring diagram Refer to Section 8W.

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NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS

KJ

•

When Monitored:
With the ignition on.

•

Set Condition:
The Hands Free Module detected a short to ground on the (D25) PCI Bus circuit.

Possible Causes

(D25) PCI BUS CIRCUIT SHORTED TO GROUND

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

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