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Terminals Of Ecu

  1. CHECK LUGGAGE ROOM JUNCTION BLOCK (REAR JUNCTION BLOCK ECU) 
    Fig 1: Identifying Luggage Room Junction Block Connector Terminal (Rear Junction Block ECU)
    G04944405Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the LA, LD and LG junction block connectors.
    2. Measure the voltage and resistance according to the value (s) in the table below.

      Terminal No. (Symbols)

      CONNECTOR TERMINAL REFERENCE CHART

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      LD-4 (MPXB) - Body ground R - Body ground Battery (ECU power source) Always 11 to 14 V
      LG-1 (BANC) - Body ground W - Body ground Battery (ECU power source) Always 11 to 14 V
      LA-43 (PGND) - 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 LA, LD and LG junction block connectors
    4. Measure the voltage according to the value (s) in the table below
    CONNECTOR TERMINAL REFERENCE CHART

    Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
    S61-8 (DBM-) - Body ground Y - Body ground Seat belt anchor motor power Height adjustable anchor LH switch OFF Below 1 V
    Height adjustable anchor LH switch down ON 11" to 14 V
    S61-10 (DBM+) - Body ground L - Body ground Seat belt anchor motor power Height adjustable anchor LH switch OFF Below 1 V
    Height adjustable anchor LH switch up ON 11 to 14 V
    S61-13 (E) - Body ground W - Body ground Ground Always Below 1 Ω
    S61-14 (BES) - Body ground R - Body ground Seat belt anchor motor power Seat belt anchor motor drive Alternating between 8 V and below 1 V
    Seat belt anchor motor stop Below 1 V
    S61-15 (VC) - Body ground Y - Body ground Battery (seat belt anchor power) Always 11 to 14 V
    S62-22 (PBM+) - Body ground V - Body ground Seat belt anchor motor power Height adjustable anchor RH switch OFF Below 1 V
    Height adjustable anchor RH switch up ON 11 to 14 V
    S62-23 (PBM-) - Body ground L - Body ground Seat belt anchor motor power Height adjustable anchor RH switch OFF Below 1 V
    Height adjustable anchor RH switch down ON 11 to 14 V

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

  2. CHECK FRONT DOOR ECU LH 
    Fig 2: Identifying Front Door ECU Connector Terminal P10 And N10 (LH)
    G04944406Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N10 and P10 ECU connectors.
    2. Measure the voltage and resistance according to the value (s) in the table below.
      CONNECTOR TERMINAL REFERENCE CHART

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N10-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω,
      P10-29 (MSWE) - N10-1 (GND) V - W-B Ground Always Below 1 Ω
      P10-28 (DSE) - N10-1 (GND) O - W-B Ground Always Below 1 Ω
      N10-11 (CPUB) - N10-1 (GND) B - W-B Battery (ECU power source) Always 11 to 14 V
      N10-6 (BDR) - N10-1 (GND) O - W-B Battery (ECU power source) Always 11 to 14 V
      N10-3 (SIG) - N10-1 (GND) L - W-B Power switch signal Power switch ON (IG) 11 to 14 V
      P10-16 (MM) - N10-1 (GND) O - W-B Memory switch signal Memory switch set OFF 10 kΩ or higher
      Memory switch set ON Below 1 Ω
      P10-13 (M1) - N10-1 (GND) R - W-B Memory switch signal Memory switch M1 OFF 10 kΩ or higher
      Memory switch M1 ON Below 1 Ω
      P10-14 (M2) - N10-1 (GND) B - W-B Memory switch signal Memory switch M2 OFF 10 kΩ or higher
      Memory switch M2 ON Below 1 Ω
      P10-15 (M3) - N10-1 (GND) Y - W-B Memory switch signal Memory switch M3 OFF 10 kΩ or higher
      Memory switch M3 ON Below 1 Ω
      P10-17 (DSDN) - N10-1 (GND) R - W-B Height adjustable anchor switch signal Height adjustable anchor LH switch down OFF 10 kΩ or higher
      Height adjustable anchor LH switch down ON Below 1 Ω
      P10-18 (DSUP) - N10-1 (GND) B - W-B Height adjustable anchor switch signal Height adjustable anchor LH switch up OFF 10 kΩ or higher
      Height adjustable anchor LH switch up ON Below 1 Ω

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

    3. Reconnect the N10 and P10 ECU connectors.
    4. Measure the voltage according to the value (s) in the table below
      CONNECTOR TERMINAL REFERENCE CHART

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      P10-16 (MM) - N10-1 (GND) O - W-B Memory switch signal Memory switch set OFF 11 to 14 V
      Memory switch set ON Below 1 V
      P10-13 (M1) - N10-1 (GND) R - W-B Memory switch signal Memory switch M1 OFF 11 to 14 V
      Memory switch M1 ON Below 1 V
      P10-14 (M2) - N10-1 (GND) B - W-B Memory switch signal Memory switch M2 OFF 11 to 14 V
      Memory switch M2 ON Below 1 V
      P10-15 (M3) - N10-1 (GND) Y - W-B Memory switch signal Memory switch M3 OFF 11 to 14 V
      Memory switch M3 ON Below 1 V
      P10-17 (DSDN) - N10-1 (GND) R - W-B Height adjustable anchor switch signal Height adjustable anchor switch LH down OFF 11 to 14 V
      Height adjustable anchor LH switch down ON Below 1 V
      P10-18 (DSUP) - N10-1 (GND) B - W-B Height adjustable anchor switch signal Height adjustable anchor LH switch up OFF 11 to 14 V
      Height adjustable anchor LH switch up ON Below 1 V

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

  3. CHECK FRONT DOOR ECU RH 
    Fig 3: Identifying Front Door ECU Connector Terminal P4 And N1 (RH)
    G04944407Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N1 and P4 ECU connectors.
    2. Measure the voltage and resistance according to the value (s) in the table below.
      CONNECTOR TERMINAL REFERENCE CHART

      Terminal No (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N1-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      P4-28 (PSE) - N1-1 (GND) O - W-B Ground Always Below 1 Ω
      N1-11 (CPUB) - N1-1 (GND) R - W-B Battery (ECU power source) Always 11 to 14 V
      N1-6 (BDR) - N1-1 (GND) O - W-B Battery (ECU power source) Always 11 to 14 V
      N1-3 (SIG) - N1-1 (GND) V - W-B Power switch signal Power switch ON (IG) 11 to 14 V
      P4-17 (PSDN) - N1-1 (GND) R - W-B Height adjustable anchor switch signal Height adjustable anchor switch RH down OFF 10 kΩ or higher
      Height adjustable anchor switch RH down ON Below 1 Ω
      P4-18 (PSUP) - N1-1 (GND) B - W-B Height adjustable anchor switch signal Height adjustable anchor switch RH up OFF 10 kΩ or higher
      Height adjustable anchor switch RH up ON Below 1 Ω

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

    3. Reconnect the N1 and P4 ECU connectors.
    4. Measure the voltage according to the value (s) in the table below.
      CONNECTOR TERMINAL REFERENCE CHART

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      P4-17 (PSDN) - N1-1 (GND) R - W-B Height adjustable anchor switch signal Height adjustable anchor RH switch down OFF 11 to 14 V
      Height adjustable anchor RH switch down ON Below 1 V
      P4-18 (PSUP) - N1-1 (GND) B - W-B Height adjustable anchor switch signal Height adjustable anchor RH switch up OFF 11 to 14 V
      Height adjustable anchor RH switch up ON Below 1 V

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

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