ELECTRIC PARKING BRAKE SYSTEM TERMINALS OF ECU


  1. CHECK PARKING BRAKE ECU ASSEMBLY

    B004ASLC12
    *a

    Front view of wire harness connector

    (to Parking Brake ECU Assembly)

    		 - -

    1. Disconnect the parking brake ECU assembly connectors.

    2. Measure the voltage and resistance according to the values in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      X66-3 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      X66-8 (+B) - Body ground B - Body ground Electric parking brake motor power supply Power switch off 11 to 14 V
      X67-1 (CA2L) - X67-9 (CA2H) P - V CAN communication line Power switch off 54 to 69 Ω
      X67-2 (BECU) - Body ground GR - Body ground Parking brake ECU power supply Power switch off 11 to 14 V
      X67-4 (IG) - Body ground B - Body ground IG power supply Power switch on (IG) 11 to 14 V

    3. Connect the parking brake ECU assembly connectors.

      B000Q0WC08
      *a

      Component with harness connected

      (Parking Brake ECU Assembly)

      		 - -

    4. Measure the voltage and resistance according to the values in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      X66-1 (M-) - Body ground L - Body ground Electric parking brake motor

      Power switch on (IG)

      Electric parking brake not operating

      		 4.5 to 6.8 V
      X66-2 (M+) - Body ground G - Body ground Electric parking brake motor

      Power switch on (IG)

      Electric parking brake not operating

      		 4.5 to 6.8 V
      X66-7 (TX) - Body ground R - Body ground Combination meter communication signal 20 seconds after power switch turned off 9 to 14 V
      X67-6 (TSN2) - Body ground W - Body ground Tension sensor 2 Power switch on (IG) 0.5 to 4.5 V
      X67-7 (VT) - Body ground B - Body ground Tension sensor power supply Power switch on (IG) 4.75 to 5.25 V
      X67-8 (TSEN) - Body ground R - Body ground Tension sensor 1 Power switch on (IG) 0.5 to 4.5 V
      X67-10 (SG) - Body ground - - Always Below 1 Ω
      X67-12 (LCK1) - Body ground W - Body ground Electric parking brake switch lock 1

      Power switch on (IG)

      Electric parking brake switch off

      		 1.8 to 3.3 V

      Power switch on (IG)

      Electric parking brake switch lock (push)

      		 2.2 to 3.7 V
      X67-13 (REL2) - Body ground SB - Body ground Electric parking brake switch release 2

      Power switch on (IG)

      Electric parking brake switch off

      		 6.5 to 10 V

      Power switch on (IG)

      Electric parking brake switch release (pull)

      		 2.8 to 5 V
      X67-14 (TGND) - Body ground G - Body ground Tension sensor ground Always Below 1 Ω
      X67-15 (LCK2) - Body ground BE - Body ground Electric parking brake switch lock 2

      Power switch on (IG)

      Electric parking brake switch off

      		 6.5 to 10 V

      Power switch on (IG)

      Electric parking brake switch lock (push)

      		 2.8 to 5 V
      X67-16 (REL1) - Body ground LG - Body ground Electric parking brake switch release 1

      Power switch on (IG)

      Electric parking brake switch off

      		 6.5 to 10 V

      Power switch on (IG)

      Electric parking brake switch release (pull)

      		 2.8 to 5 V