Jeep Liberty KJ. Manual — part 262
SKREEM/SKIM–EEPROM FAILURE
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
When the value written to EEPROM memory does not equal the value read back after the write operation.
Possible Causes
SKREEM/SKIM INTERNAL DTC FAILURE
Diagnostic Test
1.
VERIFY THAT THE DTC IS ACTIVE
NOTE: This trouble code indicates an internal module fault.
Turn the ignition on.
With the scan tool, record and erase the SKREEM/SKIM DTCs.
Perform 5 ignition key cycles, leaving the ignition key on for a minimum of 90 seconds per cycle.
With the scan tool, read the SKREEM/SKIM DTCs.
Did this DTC reset?
Yes
>> Replace and program the SKREEM/SKIM in accordance with the Service Information.
Perform SKIS VERIFICATION TEST. (Refer to 8 - ELECTRICAL/VEHICLE THEFT SECURITY - STAN-
DARD PROCEDURE).
No
>> Test complete, the conditions that set this DTC are not present at this time.
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VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS
KJ
SKREEM/SKIM–INTERNAL FAULT
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
The SKREEM/SKIM has detected a fault during an internal self test.
Possible Causes
SKREEM/SKIM INTERNAL DTC FAILURE
Diagnostic Test
1.
VERIFY THAT THE DTC IS ACTIVE
NOTE: This trouble code indicates an internal module fault.
Turn the ignition on.
With the scan tool, record and erase the SKREEM/SKIM DTCs.
Perform 5 ignition key cycles, leaving the ignition key on for a minimum of 90 seconds per cycle.
With the scan tool, read the SKREEM/SKIM DTCs.
Did this DTC reset?
Yes
>> Replace and program the SKREEM/SKIM in accordance with the Service Information.
Perform SKIS VERIFICATION TEST. (Refer to 8 - ELECTRICAL/VEHICLE THEFT SECURITY - STAN-
DARD PROCEDURE).
No
>> Test complete, the conditions that set this DTC are not present at this time.
KJ
VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS
8Q - 25
SKREEM/SKIM–PCM STATUS FAILURE
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
If the SKREEM/SKIM fails to receive the PCM STATUS message from the PCM for at least 20.0 consecutive
seconds.
Possible Causes
WIRE HARNESS FAILURE
SKREEM/SKIM
PCM
Diagnostic Test
1.
VERIFY THAT THE DTC IS ACTIVE
NOTE: Verify that the PCM has good power and ground connections before continuing.
Turn the ignition on.
With the scan tool, record and erase the SKREEM/SKIM DTCs.
Turn the ignition off.
Wait 2 minutes.
Turn the ignition on.
With the scan tool, read the SKREEM/SKIM DTCs.
Did this DTC reset?
Yes
>> Go To 2
No
>> Perform the Intermittent Condition diagnostic procedure in this Section.
2.
INSPECT RELATED WIRING FOR CONDITION CAUSING THE FAULT
Turn the ignition off.
NOTE: Visually inspect the related wiring harness and PCI Bus circuits for any chafed, pierced, pinched,
and partially broken wires.
NOTE: Visually inspect the related wiring harness connectors for broken, bent, pushed out, and corroded
terminals.
NOTE: Refer to any Technical Service Bulletins (TSB) that may apply.
Were any problems found?
Yes
>> Repair as necessary.
Perform SKIS VERIFICATION TEST. (Refer to 8 - ELECTRICAL/VEHICLE THEFT SECURITY - STAN-
DARD PROCEDURE).
No
>> Go To 3
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VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS
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3.
VERIFY THAT THE DTC IS STILL ACTIVE
NOTE: Obtain the SKIM PIN before proceeding.
Turn the ignition on.
With the scan tool, erase all PCM and SKREEM/SKIM DTCs.
Perform 5 ignition key cycles, leaving the ignition key on for a minimum of 90 seconds per cycle.
With the scan tool, read the SKREEM/SKIM DTCs.
Did this DTC reset?
Yes
>> Replace and program the PCM in accordance with the Service Information.
Perform SKIS VERIFICATION TEST. (Refer to 8 - ELECTRICAL/VEHICLE THEFT SECURITY - STAN-
DARD PROCEDURE).
No
>> Test complete, the conditions that set this DTC are not present at this time.
KJ
VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS
8Q - 27
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