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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 901 (Defogger) >> Symptom Diagnosis >> Rear Window Defogger And Door Mirror Defogger Do Not Operate >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK REAR WINDOW DEFOGGER SWITCH 

    Check rear window defogger switch.

    Refer to "COMPONENT FUNCTION CHECK ".

    Is the inspection result normal? 

    YES: GO TO 2

    NO: Repair or replace the malfunctioning parts.

  2. CHECK REAR WINDOW DEFOGGER RELAY 

    Check rear window defogger relay.

    Refer to "COMPONENT FUNCTION CHECK ".

    Is the inspection result normal? 

    YES: Refer to "INTERMITTENT INCIDENT ".

    NO: Repair or replace the malfunctioning parts.