Inoperative Courtesy Light Switch
NOTE:
Perform INTERIOR LIGHT TEST 1A 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.
Turn dash mounted courtesy light switch to ON position. Using scan tool, select INPUTS/OUTPUTS. Read courtesy light switch status. If scan tool displays ON, replace Body Control Module (BCM). BCM is mounted to junction block located behind left end cap of instrument panel. See Figure. If scan tool does not display ON, replace headlight switch.