Test No. 16 : Key Unlock Warning Switch Circuit
- Check key unlock warning switch. See STEERING COLUMN SWITCHES article. Replace switch as necessary. Retest system operation. If switch is okay, go to next step.
- Check circuits for faults between key unlock warning switch and body control ECU No. 2. See WIRING DIAGRAMS . Repair or replace as necessary. If circuits are okay, performTEST NO. 17: LEFT REAR DOOR COURTESY LIGHT & COURTESY SWITCH CIRCUIT .