Check Ignition Switch Illumination

SYMPTOM CHART

Step	Check	Yes	No
1 CHECK IGNITION CIRCUIT. Check the ignition switch circuit.	Is the circuit normal?	Go to step 2 .	Repair or replace.
2 CHECK DOOR SWITCH CIRCUIT. Check the door switch circuit.	Is the circuit normal?	Go to step 3 .	Repair or replace.
3 CHECK FUSE. Remove and visually check fuse No. 18 (in the main fuse box).	Is the fuse blown out?	Replace the fuse with a new part.	Go to step 4 .
4 CHECK HARNESS. Disconnect the ignition switch illumination connector. Measure the voltage between ignition switch illumination connector and chassis ground. Connector & terminal (B350) No. 1 (+) - Chassis ground (-):	Is the voltage 10 V or more?	Go to step 5 .	Check the harness for open circuits or shorts between the ignition switch illumination and fuse.
5 CHECK IGNITION SWITCH ILLUMINATION CIRCUIT. Disconnect the connector of body integrated unit. Check the harness for open or short circuit between body integrated unit connector and ignition switch illumination connector. Connector & terminal (B280) No. 25 - (B350) No. 2:	Is harness normal?	Go to step 6 .	Check the harness for open circuits and shorts between the body integrated unit and ignition switch illumination.
6 CHECK IGNITION SWITCH ILLUMINATION BULB. Apply battery voltage to the bulb.	Does the bulb illuminate?	Replace the body integrated unit. Ref. to BODY INTEGRATED UNIT .	Replace the ignition switch illumination bulb. Ref. to REMOVAL , Ignition Switch Illumination.