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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)
    G02956675Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D19 ECU connector.
    2. Measure the voltage and resistance of the wire harness side connector.

      Standard: 

      MULTIPLEX NETWORK DOOR ECU FRONT LH (DRIVER DOOR ECU) (VOLTAGE AND RESISTANCE)

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      GND (D19-1) - Body ground W-B - Body ground Ground Always Below 1 ohms
      CPUB (D19-4) - GND (D19-1) L-O - W-B Battery (ECU power source) Always 10 to 14 V
      SIG (D19-5) - GND (D19-1) V-W - W-B Ignition power supply Ignition switch OFF 0 V
      SIG (D19-5) - GND (D19-1) V-W - W-B Ignition power supply Ignition switch ON 10 to 14 V
      BDR (D19-6) - GND (D19-1) B-R - W-B Battery (ECU power source) Always 10 to 14 V
      HTR- (D19-22) - GND (D19-1) W-B - W-B Mirror defogger switch signal Always Below 1 ohms
      HTR+ (D19-13) - GND (D19-1) R-W - W-B Mirror defogger switch signal Always Below 1 ohms

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

    3. Reconnect the D19 ECU connector.
    4. Measure the voltage of the connector.

      Standard: 

      MULTIPLEX NETWORK DOOR ECU FRONT LH (DRIVER DOOR ECU) (VOLTAGE)

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      MR+(1) (D19-7) - Body ground Y - Body ground Mirror retract switch signal Mirror retract switch ON (Outer rear view mirror LH is retracting) 10 to 14 V
      MR-(1) (D19-18) - GND (D19-1) V - W-B Mirror retract switch signal Mirror retract switch OFF (Outer rear view mirror LH is returning) 10 to 14 V
      DM+R (D19-20) - GND (D19-1) R-B - W-B Mirror master switch signal (RIGHT and DOWN) Mirror master switch LEFT, Mirror control switch OFF 10 to 14 V
      DM+R (D19-20) - GND (D19-1) R-B - W-B Mirror master switch signal (RIGHT and DOWN) Mirror master switch LEFT, Mirror control switch DOWN and RIGHT 0 V
      DMHR (D19-19) - GND (D19-1) LG - W-B Mirror master switch signal (LEFT and DOWN) Mirror master switch LEFT, Mirror control switch OFF 10 to 14 V
      DMHR (D19-19) - GND (D19-1) LG - W-B Mirror master switch signal (LEFT and DOWN) Mirror master switch LEFT, Mirror control switch DOWN and LEFT 0 V
      DMVR (D19-8) - GND (D19-1) LG-B - W-B Mirror control switch signal (UP and RIGHT) Mirror master switch LEFT, Mirror control switch OFF 10 to 14 V
      DMVR (D19-8) - GND (D19-1) LG-B - W-B Mirror control switch signal (UP and RIGHT) Mirror master switch LEFT, Mirror control switch UP and RIGHT 0 V
      EC+ (D19-15) - GND (D19-1) O - W-B Mirror EC signal Electrochromic mirror system is operating 10 to 14 V
      EC+ (D19-15) - GND (D19-1) O - W-B Mirror EC signal Electrochromic mirror system is not operating 0 V
      HSSR (D19-26) - GND (D19-1) GR - W-B Horizontal direction position signal Mirror master switch LEFT Mirror control switch OFF 10 to 14 V
      HSSR (D19-26) - GND (D19-1) GR - W-B Horizontal direction position signal Mirror master switch LEFT Mirror control switch RIGHT and LEFT 0 V
      DE2 (D19-25) - GND (D19-1) R - W-B Power source for mirror position sensor Ignition switch ACC or OFF during sleep mode 4.8 to 5.2 V
      DE2 (D19-25) - GND (D19-1) R - W-B Power source for mirror position sensor Ignition switch ON 0 V
      VSSR (D19-16) - GND (D19-1) G-O - W-B Vertical direction position signal Mirror master switch LEFT Mirror control switch OFF 10 to 14 V
      VSSR (D19-16) - GND (D19-1) G-O - W-B Vertical direction position signal Mirror master switch LEFT Mirror control switch UP and DOWN 0 V
      (1) w/ Retractable mirror

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

  2. CHECK MULTIPLEX NETWORK DOOR ECU FRONT RH (PASSENGER DOOR ECU) 
    Fig 2: Checking Multiplex Network Door ECU Front RH (Passenger Door ECU)
    G02956676Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the P11 ECU connector.
    2. Measure the voltage and resistance of the wire harness side connector.

      Standard: 

      MULTIPLEX NETWORK DOOR ECU FRONT RH (PASSENGER DOOR ECU) (VOLTAGE AND RESISTANCE)

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      GND (P11-1) - Body ground W-B - Body ground Ground Always Below 1 ohms
      CPUB (P11-4) - GND (P11-1) L-O - W-B Battery (ECU power source) Always 10 to 14 V
      SIG (P11-5) - GND (P11-1) V-W - W-B Ignition power supply Ignition switch OFF 0 V
      SIG (P11-5) - GND (P11-1) V-W - W-B Ignition power supply Ignition switch ON 10 to 14 V
      BDR (P11-6) - GND (P11-1) G-Y - W-B Battery (ECU power source) Always 10 to 14 V
      HTR- (P11-22) - GND (P11-1) W-B - W-B Mirror defogger switch signal Always Below 1 ohms
      HTR+ (P11-13) - GND (P11-1) R-W - W-B Mirror defogger switch signal Always Below 1 ohms

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

    3. Reconnect the P11 ECU connector.
    4. Measure the voltage of the connector.

      Standard: 

      MULTIPLEX NETWORK DOOR ECU FRONT RH (PASSENGER DOOR ECU) (VOLTAGE)

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      MR+(1) (P11-7) - Body ground Y- Body ground Mirror retract switch signal Mirror retract switch ON (Outer rear view mirror RH is retracting) 10 to 14 V
      MR-(1) (P11-18) - GND (P11-1) V - W-B Mirror retract switch signal Mirror retract switch OFF (Outer rear view mirror RH is returning) 10 to 14 V
      DM+R (P11-20) - GND (P11-1) R-B - W-B Mirror master switch signal (RIGHT and DOWN) Mirror master switch RIGHT, Mirror control switch OFF 10 to 14 V
      PM+R (P11-20) - GND (P11-1) R-B - W-B Mirror master switch signal (RIGHT and DOWN) Mirror master switch RIGHT, Mirror control switch DOWN and RIGHT 0 V
      PMHR (P11-19) - GND (P11-1) LG - W-B Mirror master switch signal (LEFT and DOWN) Mirror master switch RIGHT, Mirror control switch OFF 10 to 14 V
      PMHR (P11-19) - GND (P11-1) LG - W-B Mirror master switch signal (LEFT and DOWN) Mirror master switch RIGHT, Mirror control switch DOWN and LEFT 0 V
      PMVR (P11-8) - GND (P11-1) G-B - W-B Mirror control switch signal (UP and RIGHT) Mirror master switch RIGHT, Mirror control switch OFF 10 to 14 V
      PMVR (P11-8) - GND (P11-1) G-B - W-B Mirror control switch signal (UP and RIGHT) Mirror master switch RIGHT, Mirror control switch UP and RIGHT 0 V
      EC+ (P11-15) - GND (P11-1) 0 - W-B Mirror EC signal Electrochromic mirror system is operating 10 to 14 V
      EC+ (P11-15) - GND (P11-1) 0 - W-B Mirror EC signal Electrochromic mirror system is not operating 0 V
      HSSR (P11-26) - GND (P11-1) GR - W-B Horizontal direction position signal Mirror master switch RIGHT, Mirror control switch OFF 10 to 14 V
      HSSR (P11-26) - GND (P11-1) GR - W-B Horizontal direction position signal Mirror master switch RIGHT, Mirror control switch RIGHT and LEFT 0 V
      DE2 (P11-25) - GND (P11-1) R - W-B Power source for mirror position sensor Ignition switch ACC or OFF during sleep mode 4.8 to 5.2 V
      DE2 (P11-25) - GND (P11-1) R - W-B Power source for mirror position sensor Ignition switch ON 0 V
      VSSR (P11-16) - GND (P11-1) G-O - W-B Vertical direction position signal Mirror master switch RIGHT, Mirror control switch OFF 10 to 14 V
      VSSR (P11-16) - GND (P11-1) G-O - W-B Vertical direction position signal Mirror master switch RIGHT, Mirror control switch UP and DOWN 0 V
      (1) w/ Retractable mirror

      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 3: Checking Driver Side J/B (Driver Side J/B ECU)
    G02956677Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D4 and D5 J/B connectors.
    2. Measure the voltage and resistance of the wire harness side connectors.
      DRIVER SIDE J/B (DRIVER SIDE J/B ECU) (VOLTAGE AND RESISTANCE)

      Symbols (Terminal No.) Wiring Color Terminal Description Condition Specified Condition
      MPX-B (D4-5) - GND2 (D3-1) L-B - W-B Power supply Always Below 1 ohms
      R/E (D5-7) - Body ground LG - Body ground Ground Always Below 1 ohms
      RET (D5-8) - GND2 (D4-1) GR - W-B Mirror retract switch signal Mirror retract switch OFF Below 1 V
      RET (D5-8) - GND2 (D4-1) GR - W-B Mirror retract switch signal Mirror retract switch RETRACT 10 to 14 V
      MSW (D5-10) - R/E (D5-8) R - LG Mirror master switch signal (LEFT and RIGHT) Mirror master switch OFF Below 1 V
      MSW (D5-10) - R/E (D5-8) R- LG Mirror master switch signal (LEFT and RIGHT) Mirror master switch LEFT or RIGHT 0 to 5 V
      M+ (D5-11) - R/E (D5-8) R-B - LG Mirror control switch signal (UP, DOWN, LEFT and RIGHT) Mirror LEFT/RIGHT adjustment switch on neutral position Below 1 V
      M+ (D5-11) - R/E (D5-8) R-B - LG Mirror control switch signal (UP, DOWN, LEFT and RIGHT) Mirror LEFT/RIGHT adjustment switch on each position 0 to 5 V

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

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