Park/Neutral (Inhibitor) Switch Tests

IGNITION SWITCH-ST

OPERATION
- The Ignition Switch (ST) inputs HIGH signals to the engine control module during engine cranking. The engine control module, based on those signals, regulates fuel injection during starting, etc.
- When the ignition switch is turned to the SHAFT position, the battery positive voltage during engine cranking is applied to the engine control module by way of the ignition switch, and the engine control module thus detects the fact that the engine is cranking.

INSPECTION





Using Scan Tool




HARNESS INSPECTION

STEP 1. Measure the engine control module input voltage.
- Engine control module connector: Disconnected
- Ignition switch: START

Voltage (V): 8 or higher

OK: GO TO STEP 2
NG: Repair the harness. (71 - Ignition switch)





STEP 2. Check for continuity in the ground circuit.
- Engine control module connector: Disconnected

OK: STOP
NG: Repair the harness. (91 - Ground)