Nissan Murano: Dtc/circuit Diagnosis / B259a Room Lamp Fuse Blown

DTC Description

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Fuse

• Harness or connector (power supply circuit is open or shorted)

• Harness or connector (interior room lamp power supply circuit is shorted)

• BCM

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CONSULT

1. Erase DTC.

2. Ignition switch OFF.

3. Select the “Self Diagnostic Result” mode of “BCM”, after ignition switch ON for 120 seconds or more.

4. Check DTC.

Is any DTC detected?

Refer to DTC Diagnosis Procedure.

To check malfunction symptom before repair: Refer to Intermittent Incident.

Confirmation after repair: Inspection End.

CHECK FUSE

Check that the following fuse is not blown:

Is the fuse or fusible link blown?

Replace the blown fuse after repairing the affected circuit.

GO TO 2.

CHECK BAT BCM FUSE CIRCUIT

1. Disconnect BCM connector.

2. Check voltage between BCM harness connector and ground.

   (+)		(–)	Voltage (Approx.)
   BCM
   Connector	Terminal
   M81	131	Ground	Battery voltage

Is the inspection result normal?

Replace BCM. Refer to Removal and Installation.

Repair or replace harness or connectors. GO TO 3.

CHECK BATTERY SAVER OUTPUT CIRCUIT FOR SHORT TO GROUND

1. Ignition switch OFF.

2. Disconnect following connectors:

   • Automatic back door close switch (if equipped)

   • Luggage room lamp

   • Vanity lamp LH

   • Vanity lamp RH

   • Front room/map lamp assembly

   • Personal lamp 2ND row LH

   • Personal lamp 2ND row RH

3. Check continuity between BCM harness connector and ground.

   BCM		Ground	Continuity
   Connector	Terminal
   M81	129		No

Is the inspection result normal?

Replace BCM. Refer to Removal and Installation.

Repair or replace harness or connectors.