Headlight Switch Input Failure
NOTE:
Perform EXTERIOR LIGHT TEST 2A before proceeding with this test. For connector terminal identification and wiring diagrams, see
BODY CONTROL COMPUTER - INTRODUCTION. Perform VERIFICATION TEST: VER-2A after each repair.
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
- Disconnect headlight switch 13-pin connector. Read headlight switch voltage. If scan tool displays HEADLIGHT SWITCH VOLTAGE: 5 volts, replace headlight switch. If scan tool does not display HEADLIGHT SWITCH VOLTAGE: 5 volts, go to next step.
- Disconnect Body Control Module (BCM) Black 24-pin connector C2. BCM is mounted to junction block located behind left end cap of instrument panel. See Figure.