Foglights Will Not Turn Off
- Using scan tool, select BODY INPUT/OUTPUTS. Monitor FOGLIGHT SWITCH STATE. Turn foglight switch from ON to OFF position. If FOGLIGHT SWITCH STATE changes when switch is operated, go to next step. If FOGLIGHT SWITCH STATE does not change when switch is operated, go to step 4.
- Remove foglight relay from junction block. See Figure. Install a known-good relay. Operate foglights. If foglights do not operate correctly, go to next step. If foglights operate correctly, replace defective foglight relay. Perform BODY VERIFICATION TEST under VERIFICATION TESTS.
- Disconnect junction block connector C2. See Figure. If foglights turn off, replace junction block. Perform BODY VERIFICATION TEST under VERIFICATION TESTS. If foglights do not turn off, repair short to voltage in Light Blue wire(s) between junction block and foglights. Perform BODY VERIFICATION TEST under VERIFICATION TESTS.
- Using scan tool, select BODY INPUT/OUTPUTS. Monitor FOGLIGHT SWITCH STATE. Disconnect left multifunction switch connector. Connect a jumper between multifunction switch connector terminals No. 1 (White/Tan wire) and No. 4 (White/Dark Green wire). See Figure. If FOGLIGHT SWITCH STATE does not change when jumper wire is connected, go to next step. If FOGLIGHT SWITCH STATE changes when jumper wire is connected, replace left multifunction switch. See appropriate STEERING COLUMN SWITCHES article. Perform BODY VERIFICATION TEST under VERIFICATION TESTS.
- Turn ignition off. Disconnect BCM connector C2. Using DVOM, measure resistance between ground and terminal No. 1 (White/Tan wire). If resistance is 5 ohms or greater, go to next step. If resistance is less than 5 ohms, repair short to ground in White/Tan wire. Perform BODY VERIFICATION TEST under VERIFICATION TESTS.
- Replace BCM. See BODY CONTROL MODULE under REMOVAL & INSTALLATION. Perform BODY VERIFICATION TEST under VERIFICATION TESTS.