Jeep Liberty KJ. Manual — part 59
NO ORC BUS MESSAGES RECEIVED
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition in the Run/Start position.
•
Set Condition:
The Instrument Cluster detects no ORC bus message for 6 seconds. The cluster will illuminate the Airbag
warning indicator.
Possible Causes
NO RESPONSE - PCI BUS - ORC
INTERMITTENT CONDITION
Diagnostic Test
1.
NO RESPONSE - PCI BUS - ORC
Turn the ignition on.
With the scan tool, attempt to communicate with the ACM.
Was the scan tool able to I/D or communicate with the ACM?
Yes
>> The condition is not present at this time. Monitor scan tool parameters while wiggling the related wire
harness. Refer to any Technical Service Bulletins (TSB) that may apply. Visually inspect the related wir-
ing harness and connector terminals.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
No
>> Refer to the COMMUNICATION category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
8J - 42
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
KJ
NO PCI BUS MESSAGES RECEIVED
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition in the Run/Start position.
•
Set Condition:
The Instrument Cluster detects no PCI Bus messages for 4 continuous seconds. The VF will display
9
no bus.
9
The cluster will illuminate the ABS, Fuel, Airbag, and MIL warning indicators. All gauge needles will default to
the lowest indication.
Possible Causes
NO RESPONSE - PCI BUS
INTERMITTENT CONDITION
NO RESPONSE - PCI BUS - INSTRUMENT CLUSTER
INSTRUMENT CLUSTER
Diagnostic Test
1.
NO RESPONSE - PCI BUS
Turn the ignition on.
NOTE: When the Instrument Cluster detects no PCI Bus, the VF will display
(
no bus
(
.
With the scan tool, attempt to communicate with other modules on the PCI Bus.
Was the scan tool able to communicate with other modules?
Yes
>> Go To 2
No
>> Refer to the COMMUNICATION category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
2.
NO RESPONSE - PCI BUS - INSTRUMENT CLUSTER
Turn the ignition on.
With the scan tool, select System Monitors, then J1850 Module Scan.
Does the scan tool display MIC PRESENT on the BUS?
Yes
>> Go To 3
No
>> Refer to symptom
9
No Response from Instrument Cluster in the Communication
9
category.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
3.
INSTRUMENT CLUSTER
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
>> Replace the Instrument Cluster in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
No
>> The condition is not present at this time. Monitor scan tool parameters while wiggling the related wire
harness. Refer to any Technical Service Bulletins (TSB) that may apply. Visually inspect the related wir-
ing harness and connector terminals.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
KJ
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
8J - 43
NO PCM BUS MESSAGES RECEIVED
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition in the Run/Start position.
•
Set Condition:
The Instrument Cluster detects no PCM bus message for 20 seconds. The cluster will illuminate the MIL indi-
cator.
Possible Causes
NO RESPONSE - PCI BUS - PCM
INTERMITTENT CONDITION
Diagnostic Test
1.
NO RESPONSE - PCI BUS - PCM
Turn the ignition on.
With the scan tool, attempt to communicate with the PCM.
Was the scan tool able to I/D or communicate with the PCM?
Yes
>> The condition is not present at this time. Monitor scan tool parameters while wiggling the related wire
harness. Refer to any Technical Service Bulletins (TSB) that may apply. Visually inspect the related wir-
ing harness and connector terminals.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
No
>> Refer to the COMMUNICATION category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
8J - 44
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
KJ
NO SKIM BUS MESSAGES RECEIVED
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition in the Run/Start position.
•
Set Condition:
The Instrument Cluster detects no SKIM bus message for 20 seconds.
Possible Causes
NO RESPONSE - PCI BUS - SKIM
INTERMITTENT CONDITION
Diagnostic Test
1.
NO RESPONSE - PCI BUS - SKIM
Turn the ignition on.
NOTE: Ensure that the vehicle is equipped with the SKIM feature before proceeding with this test.
With the scan tool, attempt to communicate with the SKIM module.
Was the scan tool able to I/D or communicate with the SKIM module?
Yes
>> The condition is not present at this time. Monitor scan tool parameters while wiggling the related wire
harness. Refer to any Technical Service Bulletins (TSB) that may apply. Visually inspect the related wir-
ing harness and connector terminals.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
No
>> Refer to the COMMUNICATION category for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
KJ
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
8J - 45
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