24 Power Supply and Ignition Switch-IG Circuit

Symptom: Power supply system and ignition switch-IG circuit
- When an ignition switch turns ON, battery positive voltage is supplied to the PCM.

Probable Cause
- Malfunction of the ignition switch
- Improper connector contact, open circuit or short-circuited harness wire
- Disconnected PCM ground wire
- Malfunction of the PCM