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, refer to Coupe or Sedan.
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 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 LH and RH connectors.
3. Check continuity between BCM connector M17 (A) terminal 7 and step lamp connector (B) terminal 2.





Is the inspection result normal?
YES - Check the step lamps for an open. If OK, replace BCM. Refer to BCM. If NG, replace the interior room lamp. Refer to 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 LH and RH connectors.
3. Check continuity between BCM connector M17 terminal 7 and ground.





Is the inspection result normal?
YES - Check the step lamps for a short circuit. If OK, replace BCM. Refer to BCM. If NG, replace the interior room lamp. Refer to Service and Repair.
NO - Repair harness or connectors.