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Terminals Of Ecu

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  1. Standard type: CHECK SLIDING ROOF DRIVE GEAR ASSY (SLIDING ROOF ECU) 
    Fig 1: Identifying M12 Connector Terminals
    G03009908Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the M12 ECU connector.
    2. Check the voltage and resistance of each terminal of the wire harness side connector.

      Standard: 

      RESISTANCE AND VOLTAGE CHECK SPECIFIED CONDITION CHART

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      ECUB (M 12-5) - E (M 12-7) SB - W-B +B (ECUB) power supply Constant 10 to 14 V
      B (M 12-1) - E (M 12-7) P - W-B +B (B) power supply Constant 10 to 14 V
      IG (M 12-6) - E (M 12-7) BR - W-B Ignition power supply Ignition switch OFF --> ON 0V --> 10 to 14 V
      OPN (M12-9) - E (M12-7) GR - W-B Sliding roof motor open output Slide switch (OPEN) OFF --> ON 10 kΩ or higher Ω Below 1 Ω
      CLS (M12-8) - E (M12-7) LG - W-B Sliding roof motor close output Slide switch (CLOSE) OFF --> ON 10 kΩ or higher Ω Below 1 Ω
      UP (M12-3) - E (M12-7) SB - W-B Sliding roof motor up output Tilt switch (UP) OFF --> ON 10 kΩ or higher Ω Below 1 Ω
      DWN (M12-4) -E (M12-7) G - W-B Sliding roof motor down output Tilt switch (DOWN) OFF --> ON 10 kΩ or higher Ω Below 1 Ω
      E (M12-7) - Body ground W-B - Body ground Ground Constant Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the M12 ECU connector
    4. Check the voltage or resistance of each terminal of the connector.

      Standard: 

      VOLTAGE CHECK SPECIFIED CONDITION CHART

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      OPN (M12-9) - E (M12-7) GR - W-B Sliding roof motor open output Slide switch (OPEN) OFF --> ON 10 to 14 V --> 0 V
      CLS (M12-8) - E (M12-7) LG - W-B Sliding roof motor close output Slide switch (CLOSE) OFF --> ON 10 to 14 V--> 0 V
      UP (M12-3) - E (M12-7) SB - W-B Sliding roof motor up output Tilt switch (UP) OFF --> ON 10 to 14 V --> 0 V
      DWN (M12-4) -E (M12-7) G - W-B Sliding roof motor down output Tilt switch (DOWN) OFF --> ON 10 to 14 V --> 0 V

      If the result is not as specified, the sliding roof ECU may have a malfunction.

  2. Multi-panel moon roof type: CHECK SLIDING ROOF DRIVE GEAR ASSY (SLIDING ROOF ECU) 
    Fig 2: Identifying M12 Connector Terminals (Multi-Panel Moon Roof Type)
    G03009909Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the M12 ECU connector.
    2. Check the voltage and resistance of each terminal of the wire harness side connector.

      Standard: 

      RESISTANCE AND VOLTAGE CHECK SPECIFIED CONDITION CHART

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      ECUB (M12-10) -E (M12-8) SB - W-B +B (ECUB) power supply Constant 10 to 14 V
      B (M12-4) - E (M12-8) P - W-B +B (B) power supply Constant 10 to 14 V
      IG (M12-9) - E (M12-8) BR - W-B Ignition power supply Ignition switch OFF --> ON 0 V --> 10 to 14 V
      OPN (M12-6) - E (M12-8) GR - W-B Sliding roof motor open output Tilt & Slide switch (OPEN) OFF --> ON 10 kΩ or higher --> Below 1 Ω
      CLS (M12-7) - E (M12-8) LG - W-B Sliding roof motor close output Tilt & Slide switch (CLOSE) OFF 44 ON 10 kΩ or higher - Below 1 Ω
      UP (M12-2) - E (M12-8) SB - W-B Sliding roof motor up output Tilt switch (UP) OFF --> ON 10 kΩ or higher --> Below 1 Ω
      DWN (M12-1) -E (M12-8) G - W-B Sliding roof motor down output Tilt switch (DOWN) OFF --> ON 10 kΩ or higher --> Below 1 Ω
      E (M12-8) - Body ground W-B - Body ground Ground Constant Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side

    3. Reconnect the M12 ECU connector
    4. Check the voltage and resistance of each terminal of the connector

      Standard: 

      VOLTAGE CHECK SPECIFIED CONDITION CHART

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      OPN (M12-6) - E (M12-8) GR - W-B Sliding roof motor open output Tilt & Slide switch (OPEN) OFF --> ON 10 to 14 V --> 0 V
      CLS (M12-7) - E (M12-8) LG - W-B Sliding roof motor close output Tilt & Slide switch (CLOSE) OFF --> ON 10 to 14 V --> 0 V
      UP (M12-2) - E (M12-8) SB - W-B Sliding roof motor up output Tilt switch (UP) OFF --> ON 10 to 14 V --> 0 V
      DWN (M12-1) -E (M12-8) G - W-B Sliding roof motor down output Tilt switch (DOWN) OFF --> ON 10 to 14 V --> 0 V

      If the result is not as specified, the sliding roof ECU may have a malfunction.

  3. CHECK INSTRUMENT PANEL J/B ASSY (MULTIPLEX NETWORK BODY ECU) 
    Fig 3: Identifying Multiplex Network Body ECU Connector Terminals
    G03009910Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the 1D, 1F and 1M J/B connectors.
    2. Check the voltage and resistance between each terminal of the wire harness side connectors and body ground.

      Standard: 

      RESISTANCE AND VOLTAGE CHECK SPECIFIED CONDITION CHART

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      BECU (1D-10) -Body ground L-B - Body ground +B (BECU) power supply Constant 10 to 14 V
      GND 1 (1F-10) - Body ground W-B - Body ground Ground Constant Below 1 Ω
      GND2 (1M-9) -Body ground W-B - Body ground Ground Constant Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

  4. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSY 
    Fig 4: Identifying Power Window Regulator Master Switch Assy Connector Terminals
    G03009911Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the P22 ECU connector.
    2. Check the voltage and resistance of each terminal of the wire harness side connectors.

      Standard: 

      RESISTANCE AND VOLTAGE CHECK SPECIFIED CONDITION CHART

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      BDR (P22-10) -GND (P22-2) G - W-B +B (BDR) power supply Constant 10 to 14 V
      CPUB (P22-9) -GND (P22-2) L-B - W-B +B (CPUB) power supply Constant 10 to 14 V
      SIG (P22-20) -GND (P22-2) BR - W-B Ignition power supply Ignition switch OFF --> ON 0 V --> 10 to 14 V
      GND (P22-2) -Body ground W-B - Body ground Ground Constant Below 1 Ω

      If the result is not as specified, there may be a malfunction on the wire harness side.

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