VEHICLE STABILITY CONTROL SYSTEM TERMINALS OF ECU


  1. TERMINALS OF ECU


    1. for CVT

      A00552KE07
      Text in Illustration
      *a

      Component without harness connected

      (Skid Control ECU (Brake Actuator Assembly))

      		 - -
      Terminal No. (Symbol) Terminal Description
      1 (+BM) Motor relay power supply
      2 (SP1) Speed signal output for speedometer
      3 (STPO) Stop light control relay output
      4 (FR-) Front wheel speed RH (-) signal input
      5 - (Not used)
      6 - (Not used)
      7 - (Not used)
      8 (FL-) Front wheel speed LH (-) signal input
      9 (CSW) VSC OFF switch input
      10 - (Not used)
      11 - (Not used)
      12 - (Not used)
      13 (GND2) Pump motor ground
      14 (CANL) CAN communication line L
      15 - (Not used)
      16 (FR+) Front wheel speed RH (+) signal input
      17 (RR+) Rear wheel speed RH (+) signal input
      18 (RL-) Rear wheel speed LH (-) signal input
      19 (FL+) Front wheel speed LH (+) signal input
      20 - (Not used)
      21 - (Not used)
      22 (STP2) Stop light control relay signal input
      23 - (Not used)
      24 - (Not used)
      25 (+BS) ABS solenoid relay power supply
      26 (CANH) CAN communication line H
      27 (TS) Sensor check input
      28 (IG1) IG1 power source input
      29 (RR-) Rear wheel speed RH (-) signal input
      30 (STP) Stop light switch assembly input
      31 (RL+) Rear wheel speed LH (+) signal input
      32 - (Not used)
      33 - (Not used)
      34 - (Not used)
      35 - (Not used)
      36 - (Not used)
      37 - (Not used)
      38 (GND1) Skid control ECU ground

    2. for A/T or M/T

      A00573RE01
      Text in Illustration
      *a

      Component without harness connected

      (Skid Control ECU (Brake Actuator Assembly))

      		 - -
      Terminal No. (Symbol) Terminal Description
      1 (+BS) ABS solenoid relay power supply
      2 (CANH) CAN communication line H
      3 (TS) Sensor check input
      4 (IG1) IG1 power source input
      5 (RR-) Rear wheel speed RH (-) signal input
      6 (STP) Stop light switch assembly input
      7 (RL+) Rear wheel speed LH (+) signal input
      8 - (Not used)
      9 - (Not used)
      10 - (Not used)
      11 - (Not used)
      12 - (Not used)
      13 - (Not used)
      14 (GND1) Skid control ECU ground
      15 (+BM) Motor relay power supply
      16 (CANL) CAN communication line L
      17 - (Not used)
      18 (FR+) Front wheel speed RH (+) signal input
      19 (RR+) Rear wheel speed RH (+) signal input
      20 (RL-) Rear wheel speed LH (-) signal input
      21 (FL+) Front wheel speed LH (+) signal input
      22 - (Not used)
      23 - (Not used)
      24 (STP2) Stop light control relay signal input
      25 - (Not used)
      26 - (Not used)
      27 (SP1) Speed signal output for speedometer
      28 (STPO) Stop light control relay output
      29 (FR-) Front wheel speed RH (-) signal input
      30 - (Not used)
      31 - (Not used)
      32 - (Not used)
      33 (FL-) Front wheel speed LH (-) signal input
      34 (CSW) VSC OFF switch input
      35 - (Not used)
      36 - (Not used)
      37 - (Not used)
      38 (GND2) Pump motor ground

  2. TERMINAL INSPECTION


    1. for CVT


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

        A00579VE02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to Skid Control ECU (Brake Actuator Assembly))

        		 - -

        Tech Tips

        The voltage cannot be measured with the connector connected to the skid control ECU (brake actuator assembly) because the connector is watertight.

        Standard
        Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
        A68-1 (+BM) - Body ground L - Body ground Motor relay power supply Always 11 to 14 V
        A68-9 (CSW) - Body ground P - Body ground VSC OFF switch input VSC OFF switch ON → OFF (Pressed → not pressed) Below 1 Ω → 10 kΩ or higher
        A68-13 (GND2) - Body ground W-B - Body ground Pump motor ground Always Below 1 Ω
        A68-22 (STP2) - Body ground L- Body ground Stop light switch assembly (stop light control relay) input Stop light switch assembly ON → OFF (Brake pedal depressed → released) 11 to 14 V → Below 1.5 V
        A68-25 (+BS) - Body ground W - Body ground ABS solenoid relay power supply Always 11 to 14 V
        A68-28 (IG1) - Body ground G - Body ground IG1 power source input Ignition switch ON 11 to 14 V
        A68-30 (STP) - Body ground V - Body ground Stop light switch assembly input Stop light switch assembly ON → OFF (Brake pedal depressed → released) 11 to 14 V* → Below 1.5 V
        A68-38 (GND1) - Body ground W-B - Body ground Skid control ECU ground Always Below 1 Ω

        Tech Tips

        *: The standard voltage value varies depending on the +BS terminal voltage value. The standard voltage is 85% of the +BS terminal voltage.

    2. for A/T or M/T


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

        A0054FNE02
        Text in Illustration
        *a

        Front view of wire harness connector

        (to Skid Control ECU (Brake Actuator Assembly))

        		 - -

        Tech Tips

        The voltage cannot be measured with the connector connected to the skid control ECU (brake actuator assembly) because the connector is watertight.

        Standard
        Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
        A69-1 (+BS) - Body ground W - Body ground ABS solenoid relay power supply Always 11 to 14 V
        A69-4 (IG1) - Body ground G - Body ground IG1 power source input Ignition switch ON 11 to 14 V
        A69-6 (STP) - Body ground V - Body ground Stop light switch assembly input Stop light switch assembly ON → OFF (Brake pedal depressed → released) 11 to 14 V* → Below 1.5 V
        A69-14 (GND1) - Body ground W-B - Body ground Skid control ECU ground Always Below 1 Ω
        A69-15 (+BM) - Body ground L - Body ground Motor relay power supply Always 11 to 14 V
        A69-24 (STP2) - Body ground L- Body ground Stop light switch assembly (stop light control relay) input Stop light switch assembly ON → OFF (Brake pedal depressed → released) 11 to 14 V → Below 1.5 V
        A69-34 (CSW) - Body ground P - Body ground VSC OFF switch input VSC OFF switch ON → OFF (Pressed → not pressed) Below 1 Ω → 10 kΩ or higher
        A69-38 (GND2) - Body ground W-B - Body ground Pump motor ground Always Below 1 Ω

        Tech Tips

        *: The standard voltage value varies depending on the +BS terminal voltage value. The standard voltage is 85% of the +BS terminal voltage.