Ignition Keyhole Illumination Control Circuit

IGNITION KEYHOLE ILLUMINATION CONTROL CIRCUIT

Description

Controls the ignition keyhole illumination (ground side) to turn the ignition keyhole illumination ON and OFF.


Component Function Check


CAUTION:
Before performing the diagnosis, check that the following is normal.
- Battery saver output/power supply circuit
- Ignition keyhole illumination bulb

1. CHECK IGNITION KEYHOLE ILLUMINATION OPERATION

WITH CONSULT
1.Turn ignition switch ON.
2.Select "IGN ILLUM" of BCM (INT LAMP) active test item.
3.While operating the test item, check that the ignition keyhole illumination turns ON/OFF

ON: Ignition keyhole illumination ON
OFF: Ignition keyhole illumination OFF

Is the inspection result normal?
YES- Ignition keyhole illumination circuit is normal.
NO- .


Diagnosis Procedure

Regarding Wiring Diagram information, Interior Room Lamp.

1. CHECK IGNITION KEYHOLE OUTPUT

WITH CONSULT





1.Turn ignition switch ON.
2.Select "IGN ILLUM" of BCM (INT LAMP) active test item.
3.While operating the test item, check voltage between BCM connector M18 terminal 1 and ground.





Is the inspection result normal?
YES- Ignition keyhole illumination is operating normally.
Fixed ON-GO TO 3
Fixed OFF-GO TO 2

2. CHECK IGNITION KEYHOLE ILLUMINATION OPEN CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect BCM connector M18 and ignition keyhole illumination connector.
3.Check continuity between BCM connector M18 (A) terminal 1 and ignition keyhole illumination connector
M150 (B) terminal 2.





Is the inspection result normal?
YES- Check ignition keyhole illumination for an open. If OK, replace BCM. Service and Repair. If NG, replace ignition keyhole illumination.
NO- Repair harness or connectors.

3. CHECK IGNITION KEYHOLE ILLUMINATION SHORT CIRCUIT






1.Turn ignition switch OFF.
2.Disconnect BCM connector M18 and ignition keyhole illumination connector.
3.Check continuity between BCM connector M18 terminal 1 and ground.





Is the inspection result normal?
YES- Check ignition keyhole illumination for a short circuit. If
OK, replace BCM. Service and Repair. If NG, replace ignition keyhole illumination.
NO- Repair harness or connectors.