VEHICLE STABILITY CONTROL SYSTEM TERMINALS OF ECU


  1. TERMINALS OF ECU

    A0135TCE01
    Terminal No. (Symbols) 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
    12 (EBDW) Brake warning light output
    14 (CANL) CAN communication line L
    17 (TC) Diagnosis switch input
    22 (VSCW) VSC warning light 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 (PKB) Parking brake switch input
    32 (WA) ABS warning light output
    33 (SP1) Speed signal output for speedometer
    35 (CANH) CAN communication line H
    37 (IND) SLIP indicator light output
    39 (TS) Sensor check input
    41 (BZ) Buzzer output

  2. TERMINAL INSPECTION


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

      A0136YCE04

      Tech Tips

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

      Standard:
      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      A41-1 (GND2) - Body ground W-B - Body ground Pump motor ground Always Below 1 Ω
      A41-2 (+BM) - Body ground B - Body ground Motor relay power supply Always 11 to 14 V
      A41-3 (+BS) - Body ground R - Body ground Solenoid relay power supply Always 11 to 14 V
      A41-4 (GND1) - Body ground BR - Body ground Skid control ECU ground Always Below 1 Ω
      A41-12 (EBDW) - Body ground W - Body ground Brake warning light output Ignition switch ON, Brake warning light ON 5 to 14 V
      A41-22 (VSCW) - Body ground L - Body ground VSC warning light output Ignition switch ON, VSC warning light OFF 11 to 14 V
      A41-28 (IG1) - Body ground L - Body ground ECU power supply Ignition switch ON 11 to 14 V
      A41-30 (STP) - Body ground G - Body ground Stop light switch input Stop light switch ON → OFF (Brake pedal depressed → released) 8 to 14 V → Below 1.5 V
      A41-31 (PKB) - Body ground Y - Body ground Parking brake switch input Parking brake switch ON → OFF Below 1 Ω → 10 kΩ or higher
      A41-32 (WA) - Body ground P - Body ground ABS warning light output Ignition switch ON, ABS warning light ON 5 to 14 V
      A41-37 (IND) - Body ground G - Body ground SLIP indicator output Ignition switch ON, SLIP indicator light OFF 11 to 14 V
      A41-41 (BZ) - Body ground R - Body ground Buzzer warning light output Ignition switch ON, Buzzer does not sound 6 to 10 V