ITM-PRE-ARM TIMEOUT FAILURE (EXPORT ONLY)
For a complete wiring diagram Refer to Section 8W
- When Monitored:
During the VTSS pre-arm process.
- Set Condition:
If the Intrusion Transceiver Module (ITM) fails to receive the arm message from the Body Control Module (BCM) after sixty seconds.
| Possible Causes |
| BUS COMMUNICATION FAILURE |
| INTRUSION TRANSCEIVER MODULE (ITM) |
Diagnostic Test
1. VERIFY THAT THE BCM IS ACTIVE ON THE BUSTurn the ignition on.
With the scan tool, verify that the BCM is active on the bus.
Is the BCM active on the bus?
Yes
- Go To 2
No
- Refer to (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for no response related diagnostic procedures.
2. VERIFY THAT THE DTC IS ACTIVE
With the scan tool, erase 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. Inspect the related wiring harness for a possible intermittent condition. Look for any chafed, pierced or partially broken wires.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).