Circuit Diagnosis Procedure

CONSULT

1. Place each interior room lamp switch into the DOOR position on an individual basis. Test each of the following switches individually.
   • Front room/map lamp
   • Cargo lamp
   • Personal lamp 2nd row (if equipped)
   • Personal lamp 3rd row (if equipped)
   • Personal lamp 4th row (if equipped)
2. Turn ignition switch ON.
3. Select "INT LAMP" of BCM (INT LAMP) active test item.
4. While operating the test item, check voltage between BCM connector M20 terminal 63 and ground.

Is the inspection result normal?

YES

Interior room lamp control circuit is operating normally.

Fixed ON

GO TO 3

Fixed OFF

GO TO 2

1. Turn ignition switch OFF.
2. Disconnect BCM connector M20 and interior room lamp harness connector in question.
3. Check continuity between BCM connector M20 terminal 63 and interior room lamp harness connector in question.

   BCM		Interior room lamp			Continuity
   Connector	Terminal	Component	Connector	Terminal
   M20	63	Front room/map lamp	R25	3	Yes
   		Personal lamp 2nd row	B402	3
   		Personal lamp 3rd row	B403	3
   		Personal lamp 4th row	B404	3
   		Cargo lamp	B23	2

Is the inspection result normal?

YES

Check interior room lamps for an open. If NG, replace lamp in question. Refer to Removal and Installation (Front Room/Map Lamp), Removal and Installation - Front, Center or Rear (Cargo Lamp) or Removal and Installation (Personal Lamp). If OK, replace BCM. Refer to Removal and Installation .

NO

Repair the harness or connectors.

1. Turn ignition switch OFF.
2. Disconnect BCM harness connector M20.
3. Check continuity between BCM harness connector M20 terminal 63 and ground.

Is the inspection result normal?

YES

Check interior room lamps for a short circuit. If NG, replace lamp in question. Refer to Removal and Installation (Front Room/Map Lamp), Removal and Installation - Front, Center or Rear (Cargo Lamp) or Removal and Installation (Personal Lamp). If OK, replace BCM. Refer to Removal and Installation .

NO

Repair the harness or connectors.