Interior Room Lamp

INTERIOR ROOM LAMP

Diagnosis Procedure

Regarding Wiring Diagram information, Without Power Door Locks.

CAUTION:
Before performing the diagnosis, check that the following is normal.
- Fuse
- Interior room lamp bulbs

1. CHECK INTERIOR ROOM LAMP POWER SUPPLY

Check voltage between room lamp 2nd row connector R10 terminal 2 and ground.





Is the inspection result normal?
YES- GO TO 2
NO- Repair the harness or connectors.

2. CHECK INTERIOR ROOM LAMP GROUND

1.Turn ignition switch OFF.
2.Disconnect BCM connectors M18, M19 and room lamp 2nd row connector.
3.Check continuity between room lamp 2nd row connector R10 terminal 1 and ground while opening/closing the door.





Is the inspection result normal?
YES- Replace the interior room lamp. With Power Door Locks.
NO- GO TO 3

3. CHECK DOOR SWITCHES

Check the door switches. .
Is the inspection result normal?
YES- - Crew cab models, repair the harness or connectors between the interior room lamp and the door switches.
- King cab models, GO TO 4
NO- Replace the door switch.

4. CHECK DOOR SWITCH GROUND (KING CAB)






Check continuity between door switch connectors and ground.





Is the inspection result normal?
YES- Repair the harness or connectors between the interior room lamp and the door switches.
NO- Repair the harness or connectors between the door switch and ground.


Component Inspection (Door Switch)


CREW CAB


1. CHECK DOOR SWITCHES






1.Disconnect door switch.
2.Check continuity between door switch terminal 1 and ground.





Is the inspection result normal?
YES- Inspection End
NO- Replace door switch.

KING CAB


1. CHECK DOOR SWITCHES






1.Disconnect door switch.
2.Check continuity between door switch terminals 1 and 3.





Is the inspection result normal?
YES- Inspection End
NO- Replace door switch.