Test A: The Ignition Switch Is Inoperative
Pinpoint Test A: The Ignition Switch Is InoperativeTest A1-A2:
CAUTION: Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multimeter probes.
Normal Operation
The ignition switch receives overload protected battery voltage from the rear battery junction box (RBJB) fuse 22 (20A) through circuit 30-DA5 (RD/BK). The ignition switch has 4 possible states:
^ OFF
^ ACC
^ RUN
^ START
Possible Causes
^ circuit 30-DA5 (RD/BK) open
^ circuit 30-BB20 (RD) open
^ circuit 30-BB9 (RD) open
^ ignition switch
^ instrument cluster