Ignition Switch: Testing and Inspection

Ignition switch "START" signal (M/T) can be checked at ECU terminal 1C.

While cranking, terminal 1C voltage should be approximately 10V. With ignition "ON" terminal voltage should be below approximately 0V.

If starter cranks okay but voltage is always approximately 0V, check for open circuit in wiring from starter interlock switch to ECU terminal 1C.