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Power Window Master Switch: Inspection

  1. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 
    1. Measure the resistance of the master switch.
      Fig 1: Inspecting Power Window Regulator Master Switch Assembly
      G05196244Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance: 

      Driver's switch (Window unlock and lock) 

      RESISTANCE SPECIFICATION - DRIVER'S SWITCH (WINDOW UNLOCK AND LOCK)

      Switch Condition Tester Connection Specified Condition
      UP DU (4) - B (6) - B (7) Below 1 Ω
      E (1) - E (3) - DD (9)
      OFF E (1) - E (3) - DU (4) Below 1 Ω
      E (1) - E (3) - DD (9)
      DOWN E (1) - E (3) - DU (4) Below 1 Ω
      B (6) - B (7) - DD (9)
      DOWN AUTO E (1) - E (3) - DU (4) Below 1 Ω
      B (6) - B (7) - DD (9)

      Front passenger's switch (Window unlock) 

      RESISTANCE SPECIFICATION - FRONT PASSENGER'S SWITCH (WINDOW UNLOCK)

      Switch Condition Tester Connection Specified Condition
      UP E (1) - E (3) - PD (15) Below 1 Ω
      B (6) - B (7) - PU (18)
      OFF E (1) - E (3) - PD (15) Below 1 Ω
      E (1) - E (3) - PU (18)
      DOWN E (1) - E (3) - PU (18) Below 1 Ω
      B (6) - B (7) - PD (15)

      Front passenger's switch (Window lock) 

      RESISTANCE SPECIFICATION - FRONT PASSENGER'S SWITCH (WINDOW LOCK)

      Switch Condition Tester Connection Specified Condition
      UP B (6) - B (7) - PU (18) Below 1 Ω
      OFF PD (15) - PU (18) Below 1 Ω
      DOWN B (6) - B (7) - PD (15) Below 1 Ω

      Rear left switch (Window unlock) 

      RESISTANCE SPECIFICATION - REAR LEFT SWITCH (WINDOW UNLOCK)

      Switch Condition Tester Connection Specified Condition
      UP E (1) - E (3) - RLD (13) Below 1 Ω
      B (6) - B (7) - RLU (12)
      OFF E (1) - E (3) - RLD (13) Below 1 Ω
      E (1) - E (3) - RLU (12)
      DOWN E (1) - E (3) - RLU (12) Below 1 Ω
      B (6) - B (7) - RLD (13)

      Rear left switch (Window lock) 

      RESISTANCE SPECIFICATION - REAR LEFT SWITCH (WINDOW LOCK)

      Switch Condition Tester Connection Specified Condition
      UP B (6) - B (7) - RLU (12) Below 1 Ω
      OFF RLU (12) - RLD (13) Below 1 Ω
      DOWN B (6) - B (7) - RLD (13) Below 1 Ω

      Rear right switch (Window unlock) 

      RESISTANCE SPECIFICATION - REAR RIGHT SWITCH (WINDOW UNLOCK)

      Switch Condition Tester Connection Specified Condition
      UP B (6) - B (7) - RRU (10) Below 1 Ω
      E (1) - E (3) - RRD (16)
      OFF E (1) - E (3) - RRU (10) Below 1 Ω
      E (1) - E (3) - RRD (16)
      DOWN E (1) - E (3) - RRU (10) Below 1 Ω
      B (6) - B (7) - RRD (16)

      Rear right switch (Window lock) 

      RESISTANCE SPECIFICATION - REAR RIGHT SWITCH (WINDOW LOCK)

      Switch Condition Tester Connection Specified Condition
      UP B (6) - B (7) - RRU (10) Below 1 Ω
      OFF RRU (10) - RRD (16) Below 1 Ω
      DOWN B (6) - B (7) - RRD (16) Below 1 Ω

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

    2. Inspect the master switch illumination.

      Standard: 

      MEASUREMENT CONDITION CHART

      Measurement Condition Specified Condition
      Battery positive (+) → Terminal 6
      Battery negative (-) → Terminal 3      		 Switch illumination lights up

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

    Fig 2: Inspecting Master Switch Illumination
    G05196245Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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