Window Defogger System: Inspection

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection
  1. INSPECT REAR WINDOW DEFOGGER SWITCH ASSY 
    1. Inspect the defogger switch continuity.
      1. Connect the positive (+) lead from the battery to terminal 2 and negative (-) lead to terminal 3, and then check that the indicator light will light will up.

        If the result is not as specified, replace the switch or bulb.

        Fig 1: Inspecting Rear Window Defogger Switch Assy
        G02922354Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Inspect the defogger timer operation.
      1. Connect the positive (+) lead from the battery to terminal 2 and negative (-) lead to terminal 3.
      2. Connect the positive (+) lead from the battery to terminal 6 through a 1.4 W test bulb.
      3. Push the defogger switch ON, and check that the indicator light in the switch and test bulb will light up for 12 to 18 minutes then the indicator light and test bulb will go out.

        If the result is not as specified, replace the switch.

        Fig 2: Inspecting Defogger Timer Operation
        G02922355Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT DEFOGGER RELAY (Marking: DEF) 
    1. Remove the defogger relay from the instrument panel J/B.
    2. Inspect the defogger relay continuity.

      Standard: 

      Terminal Continuity Specified Condition

      Terminal No. Condition Specified Condition
      1 <==> 2 Constant Continuity
      3 <==> 5 Apply B+ Between Terminals 1 And 2 Continuity

      If the result is not as specified, replace the relay.

      Fig 3: Inspecting Defogger Relay
      G02922356Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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