Diagnosis Procedure

STEP LAMP CIRCUIT


Description

Controls the step lamp (ground side) to turn the step lamp ON and OFF.




STEP LAMP CIRCUIT


Diagnosis Procedure

Regarding Wiring Diagram information, Interior Room Lamp Control System.
1.CHECK STEP LAMP OUTPUT
CONSULT-III





1. Turn ignition switch ON.
2. Select "STEP LAMP TEST" of BCM (INT LAMP) active test item.
3. While operating the test item, check voltage between BCM connector M17 terminal 7 and ground.





Is the inspection result normal?
YES - Step lamp control circuit is operating normally.
Fixed ON-GO TO 3
Fixed OFF-GO TO 2
2.CHECK STEP LAMP OPEN CIRCUIT





1. Turn ignition switch OFF.
2. Disconnect BCM connector M17 and step lamp connectors.
3. Check continuity between BCM connector M17 (A) terminal 7 and step lamp connectors (B) terminal 2.






Is the inspection result normal?
YES - Check step lamp for an open. If OK, replace BCM. Body Control System. If
NG, replace step lamp. Service and Repair.
NO - Repair harness or connectors.
3.CHECK STEP LAMP SHORT CIRCUIT





1. Turn ignition switch OFF.
2. Disconnect BCM connector M17 and step lamp connectors.
3. Check continuity between BCM connector M17 terminal 7 and ground.





Is the inspection result normal?
YES - Check step lamp for a short circuit. If OK, replace BCM. Body Control System. If NG, replace step lamp. Service and Repair.
NO - Repair the harness or connectors.