1.CHECK PUSH-BUTTON IGNITION SWITCH OPERATION Press push-button ignition switch and check if it turns ON. Does ignition switch turn ON? YES>>GO TO 2. NO>>GO TO 4.
2.CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)

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

   (+) | (–) | Voltage (V) (Approx.)
   BCM
   Connector | Terminal
   M122 | 89 | Ground | Battery voltage

Is the inspection result normal?
YES>>GO TO 4.
NO>>GO TO 3.
3.CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)

1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector and BCM harness connector.

   IPDM E/R | BCM | Continuity
   Connector | Terminal | Connector | Terminal
   E5 | 28 | M122 | 89 | Existed

3. Check continuity between IPDM E/R harness connector and ground.

   IPDM E/R | Ground | Continuity
   Connector | Terminal
   E5 | 28 | Not existed

Is the inspection result normal?
YES>>Replace IPDM E/R. Refer to Removal and Installation.
NO>>Repair or replace harness.
4.CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)

1. 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

2. Check continuity between BCM harness connector and ground.

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

Is the inspection result normal?
YES>>GO TO 5.
NO>>Repair or replace harness.
5.CHECK PUSH-BUTTON IGNITION GROUND CIRCUIT
Check continuity between push-button ignition switch harness connector and ground.

Push-button ignition switch | Ground | Continuity
Connector | Terminal
M131 | 1 | Existed

Is the inspection result normal?
YES>>GO TO 6.
NO>>Repair or replace harness.
6.CHECK PUSH-BUTTON IGNITION SWITCH
Check push-button ignition switch. Refer to Component Inspection.
Is the inspection result normal?
YES>>GO TO 7.
NO>>Replace push button ignition switch. Refer to Removal and Installation.
7.CHECK INTERMITTENT INCIDENT
Refer to Intermittent Incident.
>>INSPECTION END