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Terminals Of Ecu

  1. CHECK MULTIPLEX NETWORK DOOR ECU FRONT LH (DRIVER DOOR ECU) 
    Fig 1: Checking Multiplex Network Door ECU Front LH (Driver Door ECU)
    G03002589Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D25 ECU connector.
    2. Measure the voltage and resistance of the wire harness side connector.

      Standard: 

      DRIVER DOOR ECU - VOLTAGE AND RESISTANCE TABLE

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      GND (D25-1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      CPUB (D25-4) - Body ground V-Y - Body ground +B (CPUB) power supply Always 10 to 14 V
      SIG (D25-5) - Body ground R-L - Body ground +B (SIG) power supply Ignition switch 1: OFF -> 2: ON 1: Below 1 V -> 2: 10 to 14 V
      BDR (D25-6) - Body ground R - Body ground +B (BDR) power supply Always 10 to 14 V

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

    3. Reconnect the D25 ECU connector.
    4. Measure the voltage of the connector.

    Standard: 

    Fig 2: Measuring Voltage Of Driver Door ECU
    G03002590Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. CHECK MULTIPLEX NETWORK DOOR ECU FRONT RH (PASSENGER DOOR ECU) 
    Fig 3: Checking Multiplex Network Door ECU Front RH (Passenger Door ECU)
    G03002591Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the F17 ECU connector.
    2. Measure the voltage and resistance of the wire harness side connector.

      Standard: 

      PASSENGER DOOR ECU - VOLTAGE AND RESISTANCE TABLE

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      GND (F17-1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      CPUB (F17-4) - Body ground V-Y - Body ground +B (CPUB) power supply Always 10 to 14 V
      SIG (F17-5) - Body ground R-L - Body ground +B (SIG) power supply Ignition switch 1: OFF -> 2: ON 1: Below 1 V -> 2: 10 to 14 V
      BDR (F17-6) - Body ground R - Body ground +B (BDR) power supply Always 10 to 14 V

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

    3. Reconnect the F17 ECU connector.
    4. Measure the voltage of the connector.

    Standard: 

    Fig 4: Measuring Voltage Of Passenger Door ECU Chart
    G03002592Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

  3. CHECK DRIVER SIDE J/B (DRIVER SIDE J/B ECU) 
    Fig 5: Checking Driver Side J/B (Driver Side J/B ECU)
    G03002593Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the DA and DG J/B, and D5 ECU connectors.
    2. Measure the voltage and resistance of the wire harness side connectors.

      Standard: 

      DRIVER SIDE J/B - VOLTAGE AND RESISTANCE TABLE

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      MPX-B (D5-5) - Body ground R-B - Body ground +B (MPX-B) power supply Always 10 to 14 V
      MPX-IG (DA-1) - Body ground B-W - Body ground +B (MPX-IG) power supply Ignition switch 1: OFF -> 2: ON 1: Below 1 V -> 2: 10 to 14 V
      GND (DG-8) - Body ground W-B - Body ground Ground Always Below 1 Ω
      GND2 (D5-1) - Body ground W-B - Body ground Ground Always Below 1 Ω

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

    3. Reconnect the DA and DG J/B, and D5 ECU connectors.
    4. Measure the voltage of the connector.

      Standard: 

      Fig 6: Measuring Voltage Of Driver Side J/B (Driver Side J/B ECU) Chart
      G03002594Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Waveform 1:

    Standard (Reference): 

    WAVEFORM 1 REFERENCE TABLE

    Tester Connection BES (D4-1) - E (D4-2)
    Tool setting 2V/DIV., 50 ms/DIV.
    Vehicle condition Switch operating
    Fig 7: Identifying Waveform 1
    G03002595Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. CHECK PASSENGER SIDE J/B (PASSENGER SIDE J/B ECU) 
    Fig 8: Checking Passenger Side J/B (Passenger Side J/B ECU)
    G03002596Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the PE and PG J/B, and P5 ECU connectors.
    2. Measure the voltage and resistance of the wire harness side connectors.

      Standard: 

      PASSENGER SIDE J/B - VOLTAGE AND RESISTANCE TABLE

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      MPX-B (PE-16) - Body ground L-Y - Body ground +B (MPX-B) power supply Always 10 to 14 V
      MPX-IG (PE-3) - Body ground R-L - Body ground +B (MPX-IG) power supply Ignition switch 1: OFF -> 2: ON 1: Below 1 V -> 2: 10 to 14 V
      GND (PG-8) - Body ground W-B - Body ground Ground Always Below 1 Ω
      GND1 (P5-11) - Body ground W-B - Body ground Ground Always Below 1 Ω

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

    3. Reconnect the PE and PG J/B, and P5 ECU connectors.
    4. Measure the voltage of the connector.

      5. Standard: 

      Fig 9: Measuring Voltage Of Passenger Side J/B (Passenger Side J/B ECU) Chart
      G03002597Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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