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 | 8 | Ground | Battery voltage

Is the inspection result normal?
YES>>GO TO 2.
NO>>Check 10 A fuse [No.11, located in fuse block (J/B)] and harness for open or short between push-button ignition switch and fuse.
2.CHECK BCM INPUT

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

   (+) | (–) | Voltage (V) (Approx.)
   BCM
   Connector | Terminal
   M119 | 15 | Ground | Battery voltage
   M122 | 93
   M123 | 134

Is the inspection normal?
YES>>Replace BCM. Refer to Removal and Installation.
NO>>GO TO 3.
3.CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT

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

   Indicator | BCM | Push-button ignition switch | Continuity
   Connector | Terminal | Connector | Terminal
   LOCK | M123 | 134 | M131 | 5 | Existed
   ACC | M119 | 15 | 6
   ON | M122 | 93 | 7

3. Check continuity between BCM harness connector and ground.

   Indicator | BCM | Ground | Continuity
   Connector | Terminal
   LOCK | M123 | 134 | Not existed
   ACC | M119 | 15
   ON | M122 | 93

Is the inspection result normal?
YES>>Replace push-button ignition switch. Refer to Removal and Installation.
NO>>Repair or replace harness.