VEHICLE STABILITY CONTROL SYSTEM TERMINALS OF ECU


  1. TERMINALS OF ECU

    A003DS4E01
    Text in Illustration
    *a

    Component without harness connected

    (Skid Control ECU (Brake Actuator Assembly))

    		 - -
    Terminal No. (Symbol) Terminal Description
    1 (GND2) Pump motor ground
    2 - (Not used)
    3 (PKB) Parking brake switch assembly input
    4 - (Not used)
    5 - (Not used)
    6 - (Not used)
    7 - (Not used)
    8 - (Not used)
    9 - (Not used)
    10 (CANL) CAN communication line L
    11 (EXI3)

    Back-up light switch assembly input*1

    Park/neutral position switch assembly input*2
    12 (IG1) ECU power supply input
    13 (+BM) Motor relay power supply
    14 (SP1) Speed signal output for speedometer
    15 (RR-) Rear wheel speed RH (-) signal input
    16 (RR+) Rear wheel speed RH (+) power supply output
    17 (FL-) Front wheel speed LH (-) signal input
    18 (FL+) Front wheel speed LH (+) power supply output
    19 - (Not used)
    20 - (Not used)
    21 - (Not used)
    22 (CANH) CAN communication line H
    23 - (Not used)
    24 (TS) Sensor check input
    25 (GND1) Skid control ECU (Brake actuator assembly) ground
    26 - (Not used)
    27 - (Not used)
    28 (RL-) Rear wheel speed LH (-) signal input
    29 (RL+) Rear wheel speed LH (+) power supply output
    30 (FR-) Front wheel speed RH (-) signal input
    31 (FR+) Front wheel speed RH (+) power supply output
    32 - (Not used)
    33 (CSW) VSC OFF switch input
    34 - (Not used)
    35 (STP) Stop light switch assembly input
    36 - (Not used)
    37 - (Not used)
    38 (+BS) Solenoid relay power supply

    • *1: for Manual Transmission

    • *2: for Automatic Transmission

  2. TERMINAL INSPECTION


    1. Disconnect the B92 connector and measure the voltage or resistance on the wire harness side.

      A003AV1E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Skid Control ECU (Brake Actuator Assembly))

      		 - -

      Tech Tips

      Voltage cannot be measured with the connector connected to the skid control (brake actuator assembly) as the connector is watertight.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      B92-1 (GND2) - Body ground W-B - Body ground Pump motor ground Always Below 1 Ω
      B92-3 (PKB) - Body ground B- Body ground Parking brake switch assembly input Parking brake lever pulled → released Below 1 Ω → 10 kΩ or higher
      B92-11 (EXI3) - Body ground L - Body ground

      Back-up light switch assembly input*1

      Park/neutral position switch assembly input*2

      		 Shift lever not in R → Shift lever in R Below 1 V → 11 to 14 V
      B92-12 (IG1) - Body ground B - Body ground ECU power supply input Ignition switch ON 11 to 14 V
      B92-13 (+BM) - Body ground W - Body ground Motor relay power supply Always 11 to 14 V
      B92-14 (SP1) - Body ground P - Body ground Speed signal output for speedometer Ignition switch ON 11 to 14 V
      B92-25 (GND1) - Body ground W-B - Body ground Skid control ECU (Brake actuator assembly) ground Always Below 1 Ω
      B92-33 (CSW) - Body ground G - Body ground VSC OFF switch input VSC OFF switch pressed and held → released Below 1 Ω → 10 kΩ or higher
      B92-35 (STP) - Body ground L - Body ground Stop light switch assembly input Stop light switch assembly on → off (Brake pedal depressed → released) 8 to 14 V → Below 1.5 V
      B92-38 (+BS) - Body ground W-R - Body ground Solenoid relay power supply Always 11 to 14 V

      *1: for Manual Transmission

      *2: for Automatic Transmission