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, Illumination Coupe or Illumination Sedan.

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 3 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 (A) terminal 41 and push-button ignition switch connector M38 (B) terminal 3.





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

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






Check continuity between BCM connector M18 terminal 41 and ground.





Is the inspection result normal?
YES- Replace BCM. Service and Repair.
NO- Repair 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 2 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 M17.
2.Check continuity between BCM connector M17 (A) terminal 14 and push-button ignition switch connector M38 (B) terminal 2.





Is the inspection result normal?
YES- Replace BCM. Service and Repair.
NO- Repair the harness or connectors.