Test 113A - Body Control Module (BCM) No Response Condition
NOTE:
For connector terminal identification and wiring diagrams, see BODY CONTROL COMPUTER
section in this article. Perform TEST VER-1
VERIFICATION TEST after each repair.
CAUTION:
Always turn ignition off prior to disconnecting any module connector.
- Turn ignition off. Disconnect Body Control Module (BCM) Bone connector. BCM is located behind right kick panel. Using scan tool in voltmeter mode, check voltage on BCM Bone connector terminal No. 19 (Pink wire). If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
- Using scan tool in ohmmeter mode, check resistance of BCM Bone connector terminal No. 21 (Black wire). If resistance is 5 ohms or greater, repair open Black wire. If resistance is less than 5 ohms, go to next step.
- Using scan tool in ohmmeter mode, check resistance of BCM Bone connector terminal No. 14 (Black/Light Green wire). If resistance is 100 ohms or greater, repair open Black/Light Green wire. If resistance is less than 100 ohms, go to next step.
- If this test is being conducted to check for BATTERY POWER TO MODULE DISCONNECTED trouble code, replace BCM. If testing is for a NO RESPONSE trouble code, go to next step.
- Using an external ohmmeter, check resistance of Violet/Brown wire between Data Link Connector (DLC) terminal No. 3 and BCM Bone connector terminal No. 8. If resistance is 5 ohms or greater, repair open Violet/Brown wire. If resistance is less than 5 ohms, go to next step.
- Using an external ohmmeter, check resistance of White/Black wire between DLC terminal No. 11 and BCM Bone connector terminal No. 7. If resistance is 5 ohms or greater, repair open White/Black wire. If resistance is less than 5 ohms, replace BCM.