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Terminals Of Ecu

  1. TERMINALS OF ECU 
    Fig 1: Identifying Skid Control ECU Connector Terminal Identification (1 Of 2)
    GTY233967Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    TEXT IN ILLUSTRATION

    *1 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
    8 (CSW) VSC OFF switch 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
    17 - (Not used)
    18 (FR+) Front speed sensor RH (+) power supply output
    19 (CTY) Courtesy switch input
    20 (RL+) Rear speed sensor LH (+) power supply output
    21 - (Not used)
    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: Identifying Skid Control ECU Connector Terminal Identification (2 Of 2)
      GTY282586Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 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
      A60-1 (MRI1) - Body ground R - Body ground Motor power supply input 1 Always 11 to 14 V
      A60-2 (MRI2) - Body ground B - Body ground Motor power supply input 2 Always 11 to 14 V
      A60-3 (STP0) - Body ground G - Body ground Stop light control relay output Always 11 to 14 V
      A60-6 (STP2) - Body ground W - Body ground Stop light control relay input Stop light switch ON → OFF
      (Brake pedal depressed → released)      		 11 to 14 V → Below 1.5 V
      A60-8 (CSW) - Body ground G - Body ground VSC OFF switch input VSC OFF switch held ON → OFF (Released) Below 1 Ω → 10 kΩ or higher
      A60-10 (HZRI) - Body ground W - Body ground Hazard warning switch input Hazard warning switch ON → OFF Below 1 Ω → 10 kΩ or higher
      A60-12 (IG2) - Body ground Y - Body ground IG2 power source input Power switch on (IG) 11 to 14 V
      A60-13 (BZ)*1 - Body ground B - Body ground Skid control buzzer output Power switch on (IG), buzzer not sounding 11 to 14 V
      A60-14 (BI) - Body ground V - Body ground +B power source input Always 11 to 14 V
      A60-15 (BS) - Body ground Y - Body ground Solenoid power supply input Always 11 to 14 V
      A60-16 (IG1) - Body ground Y - Body ground IG1 power source input Power switch on (IG) 11 to 14 V
      A60-19 (CTY) - Body ground L - Body ground Courtesy switch input Driver door close → open 11 to 14 V → Below 1.5 V
      A60-23 (GND6) - Body ground W-B - Body ground Skid control ECU ground 6 Always Below 1 Ω
      A60-24 (GND5) - Body ground W-B - Body ground Skid control ECU ground 5 Always Below 1 Ω
      A60-25 (GND4) - Body ground W-B - Body ground Skid control ECU ground 4 Always Below 1 Ω
      A60-26 (GND3) - Body ground W-B - Body ground Skid control ECU ground 3 Always Below 1 Ω
      A60-27 (GND2) - Body ground W-B - Body ground Skid control ECU ground 2 Always Below 1 Ω
      A60-28 (GND) - Body ground W-B - Body ground Skid control ECU ground Always Below 1 Ω
      A60-33 (STP) - Body ground LG - Body ground Stop light switch input Stop light switch ON → OFF
      (Brake pedal depressed → released)      		 11 to 14 V → Below 1.5 V
      A60-36 (LBL) - Body ground R - 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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