ITM MESSAGES NOT RECEIVED
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
With the ignition on.
- Set Condition:
The BCM does not receive any messages from the Intrusion Transceiver Module (ITM) for at least 30 seconds.
| Possible Causes |
| (D25) PCI BUS CIRCUIT OPEN |
| INTRUSION TRANSCEIVER MODULE POWER AND GROUND |
| BODY CONTROL MODULE |
Diagnostic Test
1. ATTEMPT TO COMMUNICATE WITH THE INTRUSION TRANSCEIVER MODULE (ITM)Turn the ignition on.
With the scan tool attempt to communicate with the ITM.
Was the scan tool able to I/D or communicate with the ITM?
Yes
- Go To2
No
- Refer to the table of contents and perform the related symptom.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
2. BODY CONTROL MODULE
With the scan tool, erase the BCM DTC's.
Turn the ignition on and wait approximately 1 minute.
With the scan tool, read the BCM DTC's.
Did this DTC reset?
Yes
- Replace the Body Control Module 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 set this DTC is no longer present. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.