ANTI-LOCK BRAKE SYSTEM TERMINALS OF ECU


  1. TERMINALS OF ECU

    B007QESE06
    Text in Illustration
    *a

    Component without harness connected

    (Skid Control ECU (Brake Actuator Assembly))

    		 - -
    Terminal No. (Symbol) Terminal Description
    1 (+BS) Power supply for solenoid
    2 (GND) Skid control ECU ground
    5 (CANL) CAN communication line L
    6 (CANH) CAN communication line H
    8 (FL-) Front left wheel speed sensor output
    9 (FL+) Front left wheel speed sensor input
    10 (STP) Stop light switch input
    11 (RL+) Rear left wheel speed sensor input
    12 (RL-) Rear left wheel speed sensor output
    15 (TS) Sensor check switch input
    16 (TC) Diagnosis switch input
    18 (PKB) Parking brake switch input
    20 (N)* N shift position switch signal
    22 (P)* P shift position switch signal
    23 (+BM) Power supply for motor
    24 (GND) Skid control ECU ground
    25 (IG1) ECU power supply
    26 (SP1) Speed signal output for speedometer
    30 (FR-) Front right wheel speed sensor output
    31 (FR+) Front right wheel speed sensor input
    33 (RR+) Rear right wheel speed sensor input
    34 (RR-) Rear right wheel speed sensor output

    • *: for Automatic Transmission

  2. TERMINAL INSPECTION


    1. Disconnect the B19 connector and measure the voltage or resistance on the wire harness side.

      B007VSWE03
      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
      B19-1 (+BS) - Body ground W-R - Body ground Power supply for solenoid (Front battery) Always 11 to 14 V
      B19-2 (GND) - Body ground W-B - Body ground Skid control ECU ground Always Below 1 Ω
      B19-10 (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
      B19-18 (PKB) - Body ground B - Body ground Parking brake switch input Ignition switch ON, parking brake switch on → off Below 1 V → 11 to 14 V
      B19-23 (+BM) - Body ground W - Body ground Power supply for motor (Front battery) Always 11 to 14 V
      B19-24 (GND) - Body ground W-B - Body ground Skid control ECU ground Always Below 1 Ω
      B19-25 (IG1) - Body ground B - Body ground ECU power supply Ignition switch off → ON Below 1 V → 11 to 14 V
      B19-26 (SP1) - Body ground P - Body ground Speed signal output for speedometer Ignition switch ON 11 to 14 V