Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

1. CHECK INTERIOR ROOM LAMP CONTROL OUTPUT
   
   

   CONSULT

   1. Turn ignition switch ON.
   2. Select INT LAMP of BCM (INT LAMP) active test item.
   3. While operating the test item, check voltage between BCM harness connector M81 terminal 136 and ground.

   BCM		Ground	Test item		Voltage (Approx.)
   Connector	Terminal
   M81	136		INT LAMP	On	0V
   				Off	Battery voltage

   Is the inspection result normal?

   YES 

   Interior room lamp control circuit is operating normally.

   Fixed ON 

   GO TO STEP 3  .

   Fixed OFF 

   GO TO STEP 2  .

2. CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT
   
   
   1. Turn ignition switch OFF.
   2. Disconnect BCM harness connector M81, front room/map lamp assembly harness connector R107 and cargo lamp harness connector R104.
   3. Check continuity between BCM harness connector M81 terminal 136 and front room/map lamp assembly harness connector R107 terminal 7 and cargo lamp harness connector R104 terminal 3.

      BCM		Foot lamp			Continuity
      Connector	Terminal	Connector		Terminal
      M81	136	Front room/map lamp assembly	R107	7	Yes
      		Cargo lamp	R104	3

   4. Reconnect the front room/map lamp assembly harness connector.
   5. Check continuity between BCM harness connector M81 terminal 136 and personal lamps 2nd row harness connector R106 terminal 3.

      BCM		Personal lamps 2nd row		Continuity
      Connector	Terminal	Connector	Terminal
      M81	136	R106	3	Yes

   Is the inspection result normal?

   YES 

   Check interior room lamps for an open. If NG, replace lamp in question. Refer to REMOVAL AND INSTALLATION  or REMOVAL AND INSTALLATION  or REMOVAL AND INSTALLATION . If OK, replace BCM. Refer to REMOVAL AND INSTALLATION .

   NO 

   Repair or replace harness or connectors.

3. CHECK INTERIOR ROOM LAMP CONTROL SHORT CIRCUIT
   
   
   1. Turn ignition switch OFF.
   2. Disconnect BCM harness connector M81, front room/map lamp assembly harness connector R107 and cargo lamp harness connector R104.
   3. Check continuity between BCM harness connector M81 terminal 136 and ground.

      BCM		Ground	Continuity
      Connector	Terminal
      M81	136		No

   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  or REMOVAL AND INSTALLATION  or REMOVAL AND INSTALLATION . If OK, replace BCM. Refer to REMOVAL AND INSTALLATION .

   NO 

   Repair or replace harness or connectors.