Nissan Murano: Dtc/circuit Diagnosis / Electrical Load Signal

Component Function Check

CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

1. Turn ignition switch ON.

2. Connect CONSULT and select “DATA MONITOR” mode.

3. Select “LOAD SIGNAL” and check indication under the following conditions.

   Monitor item	Condition		Indication
   LOAD SIGNAL	Rear window defogger switch	ON	ON
   		OFF	OFF

Is the inspection result normal?

GO TO 2.

Proceed to Diagnosis Procedure.

CHECK LIGHTING SWITCH FUNCTION

Check “LOAD SIGNAL” indication under the following conditions.

Is the inspection result normal?

GO TO 3.

Proceed to Diagnosis Procedure.

CHECK HEATER FAN CONTROL SWITCH FUNCTION

Select “HEATER FAN SW” and check indication under the following conditions.

Is the inspection result normal?

INSPECTION END

Proceed to Diagnosis Procedure.

The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred via the CAN communication.

INSPECTION START

Confirm the malfunctioning circuit (rear window defogger, headlamp or heater fan). Refer to Component Function Check.

Which circuit is related to the incident?

GO TO 2.

GO TO 3.

GO TO 4.

CHECK REAR WINDOW DEFOGGER SYSTEM

Check rear window defogger system. Refer to Work Flow.

INSPECTION END

CHECK HEADLAMP SYSTEM

Check headlamp system. Refer to Work Flow.

INSPECTION END

CHECK HEATER FAN CONTROL SYSTEM

Check heater fan control system. Refer to Work Flow.

INSPECTION END