Jeep Liberty KJ. Manual — part 261
ITM–TRANSDUCER FAILURE (EXPORT ONLY)
For a complete wiring diagram Refer to Section 8W
•
When Monitored:
Continuously during VTSS pre-arm mode.
•
Set Condition:
The Intrusion Transceiver Module (ITM) sends a test ultrasonic signal during the pre-arm process. If the test
signal is not correctly received this code will set.
Possible Causes
INTRUSION TRANSCEIVER MODULE SENSORS BLOCKED / DIRTY
INTRUSION TRANSCEIVER MODULE (ITM)
Diagnostic Test
1.
VERIFY THAT THE DTC IS ACTIVE
Turn the ignition on.
With the scan tool, erase the ITM DTCs.
Turn the ignition off.
Arm the VTSS and wait one minute.
Disarm the VTSS and turn the ignition on.
With the scan tool, read ITM DTCs.
Did this DTC reset?
Yes
>> Go To 2
No
>> The condition that caused this symptom is currently not present. Test complete.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
2.
INSPECT ITM SENSORS FOR BLOCKAGE FROM DUST / DEBRIS
Inspect the louvers of the Intrusion Transceiver Module for blockage from dust / debris.
Were any problems found?
Yes
>> Clean as necessary.
Perform VTSS VERIFICATION TEST - 1A. (Refer to VTSS VERIFICATION TEST - 1A - STANDARD
PROCEDURE) in this Section.
No
>> Replace the ITM in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
8Q - 20
VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS
KJ
ITM–VIN MISMATCH (EXPORT ONLY)
For a complete wiring diagram Refer to Section 8W
•
When Monitored:
While the Intrusion Transceiver Module (ITM) is being disarmed.
•
Set Condition:
If the VIN stored in the ITM fails to match the VIN in the Body Control Module (BCM).
Possible Causes
MODULE PROGRAMMED WITH INCORRECT VIN
Diagnostic Test
1.
VERIFY THAT THE ITM, BCM, AND PCM ARE PROGRAMMED WITH THE CORRECT VIN
NOTE: Never install an ITM or Siren which was removed from another vehicle.
Turn the ignition on.
Display and record the VIN programmed in the ITM, BCM, and PCM as follows:
•
With the scan tool, select ECU View, select the applicable module, select More Options, and select ECU
Details.
Are the ITM, BCM, and PCM programmed with the correct VIN?
Yes
>> Go To 2
No
>> Replace and program all modules that are programmed with the incorrect VIN.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
2.
VERIFY THAT THE DTC IS ACTIVE
With the scan tool, erase the ITM DTCs.
Turn the ignition off.
Arm the VTSS and wait one minute.
Disarm the VTSS and turn the ignition on.
With the scan tool, read ITM DTCs.
Did this DTC reset?
Yes
>> Replace the ITM 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 caused this symptom is currently not present. Test complete.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
KJ
VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS
8Q - 21
SKREEM/SKIM–ANTENNA FAILURE
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Every 250 milliseconds with the ignition on.
•
Set Condition:
The SKREEM/SKIM micro-controller determines that an antenna circuit fault has occurred for 2.0 consecutive
seconds.
Possible Causes
SKREEM/SKIM INTERNAL 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 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.
8Q - 22
VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS
KJ
SKREEM/SKIM–COP FAILURE
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
The COP timer is not reset by the micro-controller every 65.5 milliseconds.
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 - 23
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