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 VINNOTE: 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).