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Test No. 17: Liftgate Courtesy Switch Circuit: Testing

  1. Test liftgate courtesy light switch. See COURTESY SWITCH  under COMPONENT TESTS. Replace as necessary. If liftgate courtesy light switch is okay, go to next step.
  2. Check continuity of Blue/White wire between terminal No. 7 of back door ECU and terminal No. 2 of back door courtesy light switch. Repair as necessary, if wiring and connectors are okay, go to next test listed. See appropriate TROUBLE SHOOTING SYMPTOMS table under TROUBLE SHOOTING .