VR30DDTT engine

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

1. 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?

   YES

   GO TO 2.

   NO

   Refer to Diagnosis Procedure .

2. CHECK LIGHTING SWITCH FUNCTION 

   Check "LOAD SIGNAL" indication under the following conditions.

   Monitor item	Condition		Indication
   LOAD SIGNAL	Lighting switch	ON at 2nd position	ON
   		OFF	OFF

   Is the inspection result normal?

   YES

   GO TO 3.

   NO

   Refer to Diagnosis Procedure .

3. CHECK HEATER FAN CONTROL SWITCH FUNCTION 

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

   Monitor item	Condition		Indication
   HEATER FAN SW	Heater fan control switch	ON	ON
   		OFF	OFF

   Is the inspection result normal?

   YES

   INSPECTION END

   NO

   Refer to Diagnosis Procedure .