Diagnosis Procedure

The electrical load signal (Rear window defogger switch signal, headlamp switch signal, heater fan switch signal, etc.) is transferred via the CAN communication line.

1. 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?

   Rear window defogger>>

   GO TO 2.

   Headlamp>>

   GO TO 3.

   Heater fan>>

   GO TO 4.

2. CHECK REAR WINDOW DEFOGGER SYSTEM 

   Refer to Work Flow .

   >>

   INSPECTION END

3. CHECK HEADLAMP SYSTEM 

   Refer to Work Flow .

   >>

   INSPECTION END

4. CHECK HEATER FAN CONTROL SYSTEM 

   Refer to Work Flow .

   >>

   INSPECTION END