Push-Button Ignition Switch Illumination Circuit

PUSH-BUTTON IGNITION SWITCH ILLUMINATION CIRCUIT

Description

Provides the power supply and the ground to control the push-button ignition switch illumination.


Component Function Check


1. CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION OPERATION

CONSULT
1.Turn the ignition switch ON.
2.Select ENGINE SW ILLUMI of BCM (INTELLIGENT KEY) active test item.
3.While operating the test item, check that the push-button ignition switch illumination turns ON/OFF

ON: Push-button ignition switch illumination ON
OFF: Push-button ignition switch illumination OFF

Is the inspection result normal?
YES- Push-button ignition switch illumination circuit is normal.
NO- Refer to "Diagnosis Procedure" .


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Interior Illumination.

1. CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION OPERATION

CONSULT
1.Turn the ignition switch ON.
2.Select ENGINE SW ILLUMI of BCM (INTELLIGENT KEY) active test item.
3.While operating the test item, check voltage between push-button ignition switch connector M38 terminal
5 and ground.





Is the inspection result normal?
YES- GO TO 4
NO- GO TO 2

2. CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION POWER SUPPLY OPEN CIRCUIT

1.Turn the ignition switch OFF.
2.Disconnect BCM connector M18 and push-button ignition switch connector.
3.Check continuity between BCM connector M18 terminal 48 and push-button ignition switch connector
M38 terminal 5.





Is the inspection result normal?
YES- GO TO 3
NO- Repair or replace the harness or connectors.

3. CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION POWER SUPPLY SHORT CIRCUIT

Check continuity between BCM connector M18 terminal 48 and ground.





Is the inspection result normal?
YES- Replace BCM. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace the harness or connectors.

4. CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION GROUND CIRCUIT

1.Turn the ignition switch OFF
2.Disconnect push-button ignition switch connector.
3.Check continuity between push-button ignition switch connector M38 terminal 6 and ground.





Is the inspection result normal?
YES- Replace push-button ignition switch.
NO- GO TO 5

5. CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION GROUND OPEN CIRCUIT

1.Disconnect BCM connector M20.
2.Check continuity between BCM connector M20 terminal 107 and push-button ignition switch connector
M38 terminal 6.





Is the inspection result normal?
YES- Replace BCM. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace the harness or connectors.