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ITM MESSAGES NOT RECEIVED For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: 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 To 2 No >> Refer to the table of contents and perform the related symptom. Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL 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 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 con- 8E - 36 ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTIC KJ |