1.CHECK PUSH-BUTTON IGNITION SWITCH INPUT SIGNAL

1. Turn ignition switch OFF.
2. Disconnect push-button ignition switch connector.
3. Check voltage between push-button ignition switch harness connector and ground.

   (+) | (–) | Voltage (V) (Approx.)
   Push-button ignition switch
   Connector | Terminal
   M131 | 4 | Ground | Battery voltage

Is the inspection normal?
YES>>GO TO 3.
NO>>GO TO 2.
2.CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)

1. Disconnect BCM connector and IPDM E/R connector.
2. Check continuity between BCM harness connector and push-button ignition switch harness connector.

   BCM | Push-button ignition switch | Continuity
   Connector | Terminal | Connector | Terminal
   M122 | 89 | M131 | 4 | Existed

3. Check continuity between BCM harness connector and ground.

   BCM | Ground | Continuity
   Connector | Terminal
   M122 | 89 | Not existed

Is the inspection normal?
YES>>Replace BCM. Refer to Removal and Installation.
NO>>Repair or replace harness.
3.CHECK PUSH-BUTTON IGNITION SWITCH
Refer to Component Inspection.
Is the inspection normal?
YES>>GO TO 4.
NO>>Replace push-button ignition switch. Refer to Removal and Installation.
4.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END