Windshield System, WINDOWGLASS System & Mirror System: Inspection

1. Disconnect the outer rear view mirror assy LH connector.
2. Apply battery voltage and check operation of the mirror heater.

HINT:

While using the battery during inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur.

OK: 

If the result is not as specified, replace the mirror assy.

Fig 1: Inspecting Outer Rear View Mirror Assy LH

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1. Disconnect the outer rear view mirror assy RH connector.
2. Apply battery voltage and check operation of the mirror heater.

HINT:

While using the battery during inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur.

OK: 

If the result is not as specified, replace the mirror assy.

Fig 2: Inspecting Outer Rear View Mirror RH

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Fig 3: Inspecting Back Window (Defogger Wire)

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1. Turn the ignition switch on (IG).
2. Turn the defogger switch on.
3. Check the voltage at the center of each defogger wire, as shown in the illustration.

   Standard: 

   DEFOGGER WIRE VOLTAGE AND CRITERIA
   
   

   Voltage	Criteria
   Approx. 5 V	Wire is not broken
   Approx. 10 or 0 V	Wire is broken

   Fig 4: Checking Defogger Wire Voltage (1 Of 2)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT:

   If there is approximately 10 V, the wire may be faulty between the center of the wire and the wire end on the battery side. If there is no voltage, the wire may be faulty between the center of the wire and the wire end on the ground side.

   Fig 5: Checking Defogger Wire Voltage (2 Of 2)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Place the voltmeter's positive (+) lead against the defogger wire on the battery side.
5. Place the voltmeter's negative (-) lead with the foil strip against the wire on the ground side.
6. Slide the positive (+) lead from the battery side to the ground side.
7. The point where the voltage jumps from approximately 10 V to 0 V is where the defogger wire is broken.

   HINT:

   If the defogger wire is not broken, the voltmeter should indicate 0 V at the positive (+) end of the defogger wire but gradually increases to approximately 12 V as the meter probe moves to the other end.

8. If necessary, repair the defogger wire.
   1. Clean the broken wire tips with grease, wax and silicone remover.
   2. Place 2 pieces of masking tape along both sides of the wire.
   3. Thoroughly mix the repair agent (Dupont paste No. 4817 or equivalent).
      Fig 6: Place 2 Pieces Of Masking Tape Along Both Sides Of Wire

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   4. Using a fine tip brush, apply a small amount of the agent to the wire.
   5. After a few minutes, remove the masking tape.
   NOTE: Do not touch the repaired part on the wire for at least 24 hours, until the repair agent is completely fixed.
   Fig 7: Applying A Small Amount Of Agent To Wire Using A Fine Tip Brush

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the RR DEF relay from the engine room R/B.
2. Measure the resistance according to the value (s) in the table below.

   Standard: 

   RELAY SPECIFIED CONDITION
   
   

   Tester connection	Condition	Specified condition
   3 - 5	Always	10 kΩ or higher
   3 - 5	Voltage is applied between terminals 1 and 2	Below 1 Ω (Battery voltage is applied between terminals 1 and 2)

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

   Fig 8: Inspecting Relay

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002