Jeep Liberty KJ. Manual — part 260
•
When Monitored:
Continuously while the VTSS is armed.
•
Set Condition:
If the Siren fails to receive messages from the Intrusion Transceiver Module (ITM).
Refer to ITM–No Serial Communication (Export Only) in this Section for the diagnostic test procedure.
8Q - 16
VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS
KJ
ITM–SIREN EEPROM FAILURE (EXPORT ONLY)
For a complete wiring diagram Refer to Section 8W
•
When Monitored:
Continuously while the VTSS is armed.
•
Set Condition:
If the checksum of the EEPROM does not calculate to the correct value.
Possible Causes
SIREN
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
>> Replace the Siren 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 - 17
ITM–SIREN INTERNAL BATTERY (EXPORT ONLY)
For a complete wiring diagram Refer to Section 8W
•
When Monitored:
Continuously with engine speed over 600 rpm.
•
Set Condition:
The Intrusion Transceiver Module (ITM) will set this DTC if the internal battery within the siren does not charge
as expected.
Possible Causes
SIREN
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
>> Replace the Siren 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).
8Q - 18
VEHICLE THEFT SECURITY - ELECTRICAL DIAGNOSTICS
KJ
ITM–SIREN ROM FAILURE (EXPORT ONLY)
For a complete wiring diagram Refer to Section 8W
•
When Monitored:
Continuously while the VTSS is armed.
•
Set Condition:
If the checksum of the ROM does not calculate to the correct value.
Possible Causes
SIREN
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
>> Replace the Siren 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 - 19
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