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Terminals Of Ecu

  1. POWER WINDOW MASTER SWITCH 
    Fig 1: Identifying P5 Power Window Master Switch Terminals
    G05243864Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the P5 switch connector.
    2. Measure the voltage and resistance of each terminal according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      GND (P5-2)-Body ground W-B - Body ground Ground Constant Below 1 Ω

      Standard voltage 

      VOLTAGE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      BDR (P5-10) - GND (P5-2) G-W-B +B power supply Constant 10 to 14 V
      CPUB (P5-9) - GND (P5-2) L-W-B +B power supply Constant 10 to 14 V
      SIG (P5-20) - GND (P5-2) Y-W-B Ignition power supply Ignition switch OFF → ON 0 V → 10 to 14 V

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

    3. Reconnect the P5 switch connector and reset the power window motor.
    4. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      UP (P5-1)-GND (P5-2) V-W-B Power window motor UP output Ignition switch ON, Driver side power window switch OFF → UP (Manual operation) 0 V → 10 to 14 V
      UP (P5-1)-GND (P5-2) V-W-B Power window motor UP output Ignition switch ON, Driver side power window fully open → Driver side power window switch UP (AUTO operation) → Driver side power window fully closed 0 V → 10 to 14 V → 0 V
      DN (P5-11) - GND (P5-2) GR-W-B Power window motor DOWN output Ignition switch ON, Driver side power window switch OFF → DOWN (Manual operation) 0 V → 10 to 14 V
      DN (P5-11)-GND (P5-2) GR-W-B Power window motor DOWN output Ignition switch ON, Driver side power window fully closed → Driver side power window switch DOWN (AUTO operation) → Driver side power window fully open 0 V → 10 to 14 V
      PWS (P5-6) - GND (P5-2) B-W-B Power window lock switch output Ignition switch ON, Power window lock switch UNLOCK → LOCK 10 to 14 V → O V
  2. POWER WINDOW SWITCH (FRONT PASSENGER SIDE) 
    Fig 2: Identifying P10 Power Window Switch Connector Terminal (Front Passenger Side)
    G05243865Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the P10 switch connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      E (P10-1) - Body ground W-B - Body ground Ground Constant Below 1 Ω

      Standard voltage 

      VOLTAGE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      +B (P10-7)-E (P10-1) G-W-B +B power supply Constant 10 to 14 V

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

    3. Reconnect the P10 switch connector and reset power window motor.
    4. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      U (P10-3)-E (P10-1) V-W-B Power window motor UP output Ignition switch ON, Regulator switch OFF → UP (manual operation) 0 V → 10 to 14 V
      SU (P10-4)-E (P10-1) Y-W-B Power window motor UP input Ignition switch ON, Regulator switch OFF → UP (manual operation) 0 V → 10 to 14 V
      SD (P10-5)-E (P10-1) LG-W-B Power window motor DOWN input Ignition switch ON, Regulator switch OFF → DOWN (manual operation) 0 V → 10 to 14 V
      D (P10-6)-E (P10-1) GR - W-B Power window motor DOWN output Ignition switch ON, Regulator switch OFF → DOWN (manual operation) 0 V → 10 to 14 V
      PCT (P10-8)-E (P10-1) B-W-B Power window lock switch output Ignition switch ON, Power window lock switch UNLOCK → LOCK 10 to 14 V → 0 V

      If the result is not as specified, the multiplex network switch may have a malfunction.

  3. POWER WINDOW SWITCH (REAR LH) 
    Fig 3: Identifying P11 Power Window Switch Connector Terminal (Rear LH)
    G05243866Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the P11 switch connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      E (P11-1) - Body ground W-B - Body ground Ground Constant Below 1 Ω

      Standard voltage 

      VOLTAGE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      +B (P11-7) - E (P11-1) L-W-W-B +B power supply Constant 10 to 14 V
    3. Reconnect the P11 switch connector and reset the power window motor.
    4. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      U (P11-3) - E (P11-1) R-W-B Power window motor UP output Ignition switch ON, Regulator switch OFF → UP (manual operation) 0V → 10 to 14 V
      SU (P11-4) - E (P11-1) L-O-W-B Power window motor UP input Ignition switch ON, Regulator switch OFF → UP (manual operation) 0V → 10 to 14 V
      SD (P11-5)-E (P11-1) LG-B-W-B Power window motor DOWN input Ignition switch ON, Regulator switch OFF → DOWN (manual operation) 0 V → 10 to 14 V
      D (P11-6) - E (P11-1) G-W-B Power window motor DOWN output Ignition switch ON, Regulator switch OFF → DOWN (manual operation) 0 V → 10 to 14 V
      PCT (P11-8) - E (P11-1) L-R-W-B Power window lock switch output Ignition switch ON, Power window lock switch UNLOCK → LOCK 10 to 14 V → 0 V

      If the result is not as specified, the multiplex network switch may have a malfunction.

  4. POWER WINDOW SWITCH (REAR RH) 
    Fig 4: Identifying P12 Power Window Switch Connector Terminal (Rear RH)
    G05243867Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the P12 switch connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      E (P12-1) - Body ground W-B - Body ground Ground Constant Below 1 Ω

      Standard voltage 

      VOLTAGE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      +B (P12-7) - E (P21-1) L-W - W-B +B power supply Constant 10 to 14 V
    3. Reconnect the P12 switch connector and reset the power window motor.
    4. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      U (P12-3) - E (P12-1) R-W-B Power window motor UP output Ignition switch ON, Regulator switch OFF → UP (manual operation) 0 V → 10 to 14 V
      SU (P12-4) - E (P12-1) L-O - W-B Power window motor UP input Ignition switch ON, Regulator switch OFF → UP (manual operation) 0 V → 10 to 14 V
      SD (P12-5) - E (P12-1) LG-B - W-B Power window motor DOWN input Ignition switch ON, Regulator switch OFF → DOWN (Manual operation) 0 V → 10 to 14 V
      D (P12-6) - E (P12-1) G-W-B Power window motor DOWN output Ignition switch ON, Regulator switch OFF → DOWN (manual operation) 0 V → 10 to 14 V
      PCT (P12-8) - E (P12-1) L-R-W-B Power window lock switch output Ignition switch ON, Power window lock switch UNLOCK → LOCK 10 to 14 V → 0 V

      If the result is not as specified, the power window switch may have a malfunction.

  5. INSTRUMENT PANEL J/B 
    Fig 5: Identifying B9, B10, B11 And B12 Connectors Terminals
    G05243868Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the B9, B10, B11 and B12 connectors.
    2. Measure the voltage and resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      GND2 (B9-2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      KSW (B10-2) - Body ground G - Body ground Key unlock warning switch input No key In ignition key cylinder → Key inserted 10 KΩ or higher → Below 1 Ω
      DTCY (B11-11) - Body ground B - Body ground Driver side courtesy switch input Driver side door CLOSED → OPEN 10 KΩ or higher → Below 1 Ω
      GND1 (B12-7) - Body ground W-B - Body ground Ground Always Below 1 Ω

      Standard voltage 

      VOLTAGE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      IG (B9-5) - Body ground BR Body ground Power supply Ignition switch OFF → ON 0 V → 10 to 14 V
      ACC (B9-17) - Body ground B - Body ground Power supply ignition switch OFF → ON 0 V → 10 to 14 V
      BECU (B12-9) - Body ground G - Body ground 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 B9, B10, B11 and B12 connectors.
    4. Measure the voltage according to the value(s) in the table below.

      If the result is not as specified, the J/B (body ECU) may have a malfunction.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      PD (B10-20) - Body ground GR - Body ground Power window motor DOWN output Ignition switch ON, Regulator switch (front passenger side) OFF → DOWN (manual operation) 0 V → 10 to 14 V
      PU (B10-21) - Body ground B - Body ground Power window motor UP output Ignition switch ON, Regulator switch (front passenger side) OFF → UP (manual operation) 0 V → 10 to 14 V
      RRD (B11-8) - Body ground BR - Body ground Power window motor DOWN output Ignition switch ON, Regulator switch (rear LH side) OFF → DOWN (manual operation) 0V->10to14V
      RRU (B11-9) - Body ground LG - Body ground Power window motor UP output Ignition switch ON, Regulator s witch (rear LH side) OFF → UP (manual operation) 0 V → 10 to 14 V
      RLD (B11-13) - Body ground W - Body ground Power window motor DOWN output Ignition switch ON, Regulator switch (rear RH side) OFF → DOWN (manual operation) 0 V → 10 to 14 V
      RLU (B11-14) - Body ground O - Body ground Power window motor UP output Ignition switch ON, Regulator switch (rear RH side) OFF → UP (manual operation) 0 V → 10 to 14 V
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