Diagnosis Procedure
- CHECK STEP LAMP OUTPUT
CONSULT ACTIVE TEST
- Turn ignition switch OFF.
- Remove the step lamp bulbs (ALL).
- Turn ignition switch ON.
- Select "STEP LAMP TEST" of BCM (INT LAMP) active test item.
- With operating the test item, check continuity between BCM harness connector and ground.
BCM
Ground
Test item
Continuity
Connector
Terminal
M122
62
STEP LAMP TEST
On
Existed
Off
Not existed
Is the inspection result normal?
YES
GO TO 2.
NO
Continuity exists and remains unchanged: GO TO 3.
NO
Continuity does not exist and remains unchanged: Replace BCM. Refer to Removal and Installation .
- CHECK STEP LAMP OPEN CIRCUIT
- Turn ignition switch OFF.
- Disconnect BCM connector, and step lamp connector.
- Check continuity between BCM harness connector and step lamp harness connector.
BCM
Step lamp
Continuity
Connector
Terminal
Connector
Terminal
M122
62
Driver side
D12
2
Existed
Passenger side
D42
Rear LH
D57
Rear RH
D77
Is the inspection result normal?
YES
Replace step lamp.
NO
Repair or replace harnesses.
- CHECK STEP LAMP SHORT CIRCUIT
- Turn ignition switch OFF.
- Disconnect BCM connector and step lamp connector.
- Check continuity between BCM harness connector and ground.
BCM
Ground
Continuity
Connector
Terminal
M122
62
Not existed
Is the inspection result normal?
YES
Repair or replace harnesses.
NO
Replace BCM. Refer to Removal and Installation .