ELECTRIC PARKING BRAKE SYSTEM TERMINALS OF ECU


  1. CHECK SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)

    A01RAYBC04
    *a

    Component without harness connected

    (Skid Control ECU (Brake Actuator Assembly))

    		 - -

    1. Disconnect the A41 skid control ECU (brake actuator assembly) connectors.

    2. Measure the voltage and resistance according to the value (s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      A41-14 (+BS) - Body ground L Parking brake motor (parking brake actuator assembly) power supply Always 11 to 14 V
      A41-45 (IG1) - Body ground

      V*1

      B*2

      		 IG power supply Engine switch on (IG)

      11 to 14 V*1

      9.5 to 14 V*2
      A41-1 (GND1) - Body ground W-B Ground Always Below 1 Ω
      A41-30 (GND2) - Body ground W-B Ground Always Below 1 Ω
      A41-13 (MRR+) - Body ground Y Parking brake motor RH (parking brake actuator assembly RH) (+) - -
      A41-12 (MRR-) - Body ground R Parking brake motor RH (parking brake actuator assembly RH) (-) - -
      A41-3 (MRL+) - Body ground B Parking brake motor LH (parking brake actuator assembly LH) (+) - -
      A41-2 (MRL-) - Body ground L Parking brake motor LH (parking brake actuator assembly LH) (-) - -
      A41-40 (LPA) - Body ground Y AUTO indicator light - -
      A41-15 (TX) - Body ground Y Combination meter assembly communication signal - -
      A41-38 (POL) - Body ground L Electric parking brake switch indicator light - -
      A41-36 (LCK1) - Body ground G Electric parking brake switch assembly lock 1 - -
      A41-23 (LCK2) - Body ground LG Electric parking brake switch assembly lock 2 - -
      A41-31 (REL1) - Body ground W Electric parking brake switch assembly release 1 - -
      A41-39 (REL2) - Body ground R Electric parking brake switch assembly release 2 - -

      • *1: w/o Stop and Start System

      • *2: w/ Stop and Start System