VEHICLE STABILITY CONTROL SYSTEM TERMINALS OF ECU


  1. TERMINALS OF ECU

    A004SPTE01
    Text in Illustration
    *1

    Component without harness connected

    (Skid Control ECU)
    Terminal No. (Symbol) Terminal Description
    1 (GND2) Pump motor ground
    2 (+BM) Motor relay power supply
    3 (+BS) Solenoid relay power supply
    4 (GND1) Skid control ECU ground
    5 (FL-) Front wheel speed LH (-) signal input
    6 (RL+) Rear wheel speed LH (+) signal input
    8 (RR+) Rear wheel speed RH (+) signal input
    9 (FR+) Front wheel speed RH (+) signal input
    10 (FR-) Front wheel speed RH (-) signal input
    11 (D/G) Diagnosis tester communication line
    13 (STP2) Stop light control relay signal input
    14 (CANL) CAN communication line L
    16 (TS) Sensor check input
    17 (CSW) VSC OFF switch input
    22 (STP3) Stop light control relay output
    26 (FL+) Front wheel speed LH (+) signal input
    27 (RL-) Rear wheel speed LH (-) signal input
    28 (IG1) ECU power supply
    29 (RR-) Rear wheel speed RH (-) signal input
    30 (STP) Stop light switch input
    31 (HZRI) Hazard warning switch signal input
    33 (SP1) Speed signal output for speedometer
    35 (CANH) CAN communication line H
    39 (STP0) Stop light control relay output
    42 (BZ)* Skid control buzzer output

    *: w/ Dynamic Radar Cruise Control System

  2. TERMINAL INSPECTION


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

      A004PCJE01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Skid Control ECU)

      Tech Tips

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      A42-1 (GND2) - Body ground W-B - Body ground Pump motor ground Always Below 1 Ω
      A42-2 (+BM) - Body ground L - Body ground Motor relay power supply Always 11 to 14 V
      A42-3 (+BS) - Body ground W - Body ground Solenoid relay power supply Always 11 to 14 V
      A42-4 (GND1) - Body ground W-B - Body ground Skid control ECU ground Always Below 1 Ω
      A42-13 (STP2) - Body ground L - Body ground Stop light control relay input Stop light switch on → Off (Brake pedal depressed → released) 8 to 14 V → Below 1.5 V
      A42-17 (CSW) - Body ground P - Body ground VSC OFF switch input VSC OFF switch held on → Off (Not pressed) Below 1 Ω → 10 kΩ or higher
      A42-28 (IG1) - Body ground G - Body ground ECU power supply Ignition switch ON 11 to 14 V
      A42-30 (STP) - Body ground V - Body ground Stop light switch input Stop light switch on → Off (Brake pedal depressed → released) 8 to 14 V → Below 1.5 V