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Terminals Of Ecu

WARNING: This page is about a different variant/trim than selected.
  1. TERMINALS OF ECU 
    Fig 1: Skid Control ECU Connector Terminal Identification
    GTY336497Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TEXT IN ILLUSTRATION

    *a Component without harness connected
    (Skid Control ECU)    		 - -
    Terminal No. (Symbol) Terminal Description
    1 (MRI1) Motor power supply input 1
    2 (MRI2) Motor power supply input 2
    3 (STP0) Stop light control relay output
    4 (TS) Sensor check switch input
    5 (FR-) Front speed sensor RH (-) signal input
    6 (STP2) Stop light control relay input
    7 (RL-) Rear speed sensor LH (-) signal input
    9 (RR-) Rear speed sensor RH (-) signal input
    10 (HZRI) Hazard warning switch input
    11 (SP1) Speed sensor signal output
    12 (IG2) IG2 power source input
    13 (BZ)*1 Skid control buzzer output
    14 (BI) +B power source input
    15 (BS) Solenoid power supply input
    16 (IG1) IG1 power source input
    18 (FR+) Front speed sensor RH (+) power supply output
    19 (CTY) Courtesy switch input
    20 (RL+) Rear speed sensor LH (+) power supply output
    22 (RR+) Rear speed sensor RH (+) power supply output
    23 (GND6) Skid control ECU ground 6
    24 (GND5) Skid control ECU ground 5
    25 (GND4) Skid control ECU ground 4
    26 (GND3) Skid control ECU ground 3
    27 (GND2) Skid control ECU ground 2
    28 (GND) Skid control ECU ground
    29 (MRO1) Motor power supply output 1
    30 (MRO2) Motor power supply output 2
    31 (FL+) Front speed sensor LH (+) power supply output
    32 (FL-) Front speed sensor LH (-) signal input
    33 (STP) Stop light switch input
    34 (CA2L) CAN communication line 2 (L)
    35 (CA2H) CAN communication line 2 (H)
    36 (LBL) Brake fluid level warning switch input
    37 (CA1H) CAN communication line 1 (H)
    38 (CA1L) CAN communication line 1 (L)
    39 (VCSK) Stroke sensor power supply output
    40 (SKS2) Stroke sensor signal input 2
    41 (SKG) Stroke sensor ground
    42 (SKS) Stroke sensor signal input

    *1: w/ Dynamic Radar Cruise Control System

  2. TERMINAL INSPECTION 
    1. Disconnect the connector and measure the voltage or resistance on the wire harness side.
      Fig 2: A58 Connector Terminal Identification
      GTY341146Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connected
      (to Skid Control ECU)      		 - -

      HINT: 

      Voltage cannot be measured with the connector connected to the skid control ECU as the connector is watertight.

      STANDARD

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      A58-1 (MRI1) - Body ground B - Body ground Motor power supply input 1 Always 11 to 14 V
      A58-2 (MRI2) - Body ground R - Body ground Motor power supply input 2 Always 11 to 14 V
      A58-3 (STP0) - Body ground Y - Body ground Stop light control relay output Always 11 to 14 V
      A58-6 (STP2) - Body ground BE - Body ground Stop light control relay input Stop light switch ON → OFF
      (Brake pedal depressed → released)      		 11 to 14 V → Below 1.5 V
      A58-10 (HZRI) - Body ground SB - Body ground Hazard warning switch input Hazard warning switch ON → OFF Below 1 Ω → 10 kΩ or higher
      A58-12 (IG2) - Body ground BE - Body ground IG2 power source input Power switch on (IG) 11 to 14 V
      A58-13 (BZ) - Body ground*1 BR - Body ground Skid control buzzer output Power switch on (IG), buzzer not sounding 11 to 14 V
      A58-14 (BI) - Body ground W - Body ground +B power source input Always 11 to 14 V
      A58-15 (BS) - Body ground B - Body ground Solenoid power supply input Always 11 to 14 V
      A58-16 (IG1) - Body ground B - Body ground IG1 power source input Power switch on (IG) 11 to 14 V
      A58-19 (CTY) - Body ground V - Body ground Courtesy switch input Driver door close → open 11 to 14 V → Below 1.5 V
      A58-23 (GND6) - Body ground W-B - Body ground Skid control ECU ground 6 Always Below 1 Ω
      A58-24 (GND5) - Body ground W-B - Body ground Skid control ECU ground 5 Always Below 1 Ω
      A58-25 (GND4) - Body ground W-B - Body ground Skid control ECU ground 4 Always Below 1 Ω
      A58-26 (GND3) - Body ground W-B - Body ground Skid control ECU ground 3 Always Below 1 Ω
      A58-27 (GND2) - Body ground W-B - Body ground Skid control ECU ground 2 Always Below 1 Ω
      A58-28 (GND) - Body ground W - Body ground Skid control ECU ground Always Below 1 Ω
      A58-33 (STP) - Body ground L - Body ground Stop light switch input Stop light switch ON → OFF
      (Brake pedal depressed → released)      		 11 to 14 V → Below 1.5 V
      A58-36 (LBL) - Body ground P - Body ground Brake fluid level warning switch input Brake fluid level warning switch OFF → ON 1.84 to 2.16 kΩ → Below 1 Ω

      *1: w/ Dynamic Radar Cruise Control System

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