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Power Mirror Control System: Inspection

  1. W/O Memory: 
    Fig 1: Identifying Left & Right Side Mirror Adjusting Switch & Connector Terminal View - W/O Memory
    G02818599Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    INSPECT LEFT SIDE MIRROR SWITCH CONTINUITY 

    LEFT SIDE MIRROR SWITCH CONTINUITY REFERENCE

    Switch Position Tester Connection Specified Condition
    OFF - No Continuity
    UP 3-4, 7-8 Continuity
    DOWN 3-8, 4-7 Continuity
    LEFT 4-9, 7-8 Continuity
    RIGHT 4-7, 8-9 Continuity
  2. INSPECT RIGHT SIDE MIRROR SWITCH CONTINUITY 
    RIGHT SIDE MIRROR SWITCH CONTINUITY REFERENCE

    Switch Position Tester Connection Specified Condition
    OFF - No Continuity
    UP 2-4, 7-8 Continuity
    DOWN 2-8, 4-7 Continuity
    LEFT 4-10, 7-8 Continuity
    RIGHT 4-7, 8-10 Continuity

    If continuity is not as specified, replace the switch.

    If continuity is as specified, inspect the switch circuit.

  3. W/ Memory: 

    INSPECT LEFT SIDE MIRROR SWITCH CONTINUITY 

    LEFT SIDE MIRROR SWITCH CONTINUITY REFERENCE - W/ MEMORY

    Switch Position Tester Connection Resistance (Ω)
    LEFT 8-9 100
    RIGHT 8-9 0
    Illumination 5-6 Continuity

    If continuity as specified, replace the switch.

  4. w/ Memory: 

    INSPECT MIRROR SWITCH RESISTANCE 

    NOTE:
    • Set the Left/Right adjustment switch to either position on the left or right.
    • Measure resistance between terminals 7 and 9 at each switch position, as shown in the chart.
    MIRROR SWITCH RESISTANCE REFERENCE - W/ MEMORY

    Switch Position Resistance (Ω)
    UP Approx. 100
    RIGHT 250
    DOWN 470
    LEFT 800

    If resistance as specified, replace the switch.

  5. INSPECT MIRROR SWITCH CIRCUIT 

    Disconnect the connector from the switch and inspect the connector on the wire harness side.

    Fig 2: Identifying Mirror Switch Connector Terminal View (Wire Harness Side)
    G02818600Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    MIRROR SWITCH CIRCUIT INSPECTION REFERENCE

    Tester Connection Condition Specified Condition
    8 - Ground Constant Continuity
    4 - Ground Ignition Switch Position LOCK No Voltage
    4 - Ground Ignition Switch Position ACC Or ON Battery Voltage

    If the circuit is not as specified, inspect the circuits connected to other parts.

  6. INSPECT MIRROR SWITCH INDICATOR LIGHT OPERATION 
    Fig 3: Inspecting Mirror Switch Indicator Light Operation
    G02818601Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 6, and check that the indicator light does not light up, replace the switch.

  7. w/o Mirror defogger and driving position memory: 

    INSPECT MIRROR MOTOR OPERATION 

    1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the mirror turns to the left side.
      Fig 4: Inspecting Mirror Motor Left Side Operation - W/O Mirror Defogger & Driving Position Memory
      G02818602Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Reverse the polarity, and check that the mirror turns to the right side.
      Fig 5: Inspecting Mirror Motor Right Side Operation - W/O Mirror Defogger & Driving Position Memory
      G02818603Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the mirror turns upward.
      Fig 6: Inspecting Mirror Motor Upward Operation - W/O Mirror Defogger & Driving Position Memory
      G02818604Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Reverse the polarity, and check that the mirror turns downward.

      If operation is not as specified, replace the mirror assembly.

      Fig 7: Inspecting Mirror Motor Downward Operation - W/O Mirror Defogger & Driving Position Memory
      G02818605Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. w/ Mirror Defogger: 

    INSPECT MIRROR MOTOR OPERATION 

    1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the mirror turns to the left side.
      Fig 8: Inspecting Mirror Motor Downward Operation - W/ Mirror Defogger
      G02818606Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Reverse the polarity, and check that the mirror turns downward.

      If operation is not as specified, replace the mirror assembly.

      Fig 9: Inspecting Mirror Motor Left Side Operation - W/ Mirror Defogger
      G02818607Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 2, and check that the mirror turns upward.
      Fig 10: Inspecting Mirror Motor Right Side Operation - W/ Mirror Defogger
      G02818608Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Reverse the polarity, and check that the mirror turns downward.

      If operation is not as specified, replace the mirror assembly.

      Fig 11: Inspecting Mirror Motor Upward Operation - W/ Mirror Defogger
      G02818609Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. w/ Driving position memory: 

    INSPECT MIRROR POSITION MOTOR OPERATION 

    1. Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the mirror turns to the left side.
      Fig 12: Inspecting Mirror Motor Downward Operation - W/ Driving Position Memory
      G02818610Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Reverse the polarity, and check that the mirror turns downward.

      If operation is not as specified, replace the mirror assembly.

      Fig 13: Inspecting Mirror Motor Upward Operation - W/ Driving Position Memory
      G02818611Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Connect the positive (+) lead from the battery to terminal 2 and the negative (-) lead to terminal 1, and check that the mirror turns upward.
      Fig 14: Inspecting Mirror Motor Left Side Operation - W/ Driving Position Memory
      G02818612Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Reverse the polarity, and check that the mirror turns downward.

      If operation is not as specified, replace the mirror assembly.

      Fig 15: Inspecting Mirror Motor Right Side Operation - W/ Driving Position Memory
      G02818613Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. w/ Driving position memory: 

    INSPECT MIRROR POSITION SENSORS OPERATION 

    NOTE: Strip off the vinyl tape of the connector and remove terminals 2, 3, 6, 7 and 9 from the connector housing.
    1. Connect A Series Of Three 1.5 V Dry Cell Batteries.
    2. Connect The Positive (+) Lead From The Dry Cell Batteries To Terminal 7 And The Negative (-) Lead To Terminal 6.
    3. Connect The Positive (+) Lead From The Voltmeter To Terminal 9 And The Negative (-) Lead To Terminal 6.
    4. Apply Battery Voltage To Terminals 2 And 3, Then Check That The Voltage Gradually Changes According To The Table Below While The Mirror Moves Between The Uppermost Position And Lowermost Position.
      Fig 16: Inspecting Mirror Position Sensors Operation (Lowermost Position) - W/ Driving Position Memory
      G02818614Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Mirror Positions (Lower And Upper) Voltage Reference - W/ Driving Position Memory

      Mirror Position Lowermost Mirror Position Uppermost
      Voltage 2.8-5.0 Changes Gradually 0-1.8

      If Voltage Value Is Not As Specified, Replace The Motor Assembly.

      Fig 17: Inspecting Mirror Position Sensors Operation (Uppermost Position) - W/ Driving Position Memory
      G02818615Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Disconnect The 4 Leads Of The Battery And Voltmeter.
    6. Connect The Positive (+) Lead From The Voltmeter To Terminal 8 And Negative (-) Lead To Terminal 6.
    7. Apply Battery Voltage To Terminals 2 And 1, Then Inspect That The Voltage Gradually Changes According To The Table Below While The Mirror Moves Between The Left-Most Position And Right-Most Position.
      Fig 18: Inspecting Mirror Position Sensors Operation (Left-Most Position) - W/ Driving Position Memory
      G02818616Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Mirror Positions (Left And Right) Voltage Reference - W/ Driving Position Memory

      Mirror Position Left-Most Mirror Position Right-Most
      Voltage Left 2.8-5.0 Changes Gradually 0-1.8
      Voltage Right 0-1.8 Changes Gradually 2.8-5.0

      If Voltage Value Is Not As Specified, Replace The Motor Assembly.

      Fig 19: Inspecting Mirror Position Sensors Operation (Right-Most Position) - W/ Driving Position Memory
      G02818617Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. INSPECT DRIVING POSITION MEMORY AND RETURN SWITCH CONTINUITY 
    Fig 20: Identifying Driving Position Memory & Return Switch & Connector Terminal View
    G02818618Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    DRIVING POSITION MEMORY AND RETURN SWITCH CONTINUITY REFERENCE

    Switch Position Tester Connection Specified Condition
    SET Switch ON 3-4 Continuity
    Return SW1 ON 2-3 Continuity
    Return SW2 ON 1-3 Continuity

    If continuity is not as specified, replace the switch.

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