EASY ACCESS BUCKLE SYSTEM TERMINALS OF ECU


  1. POSITION CONTROL ECU ASSEMBLY

    B004VATE01

    1. Disconnect the Q7 and Q8 position control ECU assembly connector.

    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
      Q7-1 (+B2) - Body ground W - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      Q8-1 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      Q8-2 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      Q8-19 (IG) - Body ground SB - Body ground IG power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V

    3. Reconnect the Q7 and Q8 position control ECU assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      Q6-4 (BCL-) - Body ground B - Body ground Driver side backle motor DOWN output Easy access buckle function OFF Below 1 V
      B - Body ground Easy access buckle function ON (descended) 11 to 14 V
      Q6-10 (BCL+) - Body ground W-B - Body ground Driver side backle motor UP output Easy access buckle function OFF Below 1 V
      Easy access buckle function ON (raised) 11 to 14 V
      Q7-23 (BCLL) - Body ground BR - Body ground Driver side buckle switch LED light output Buckle switch LED light illuminated → not illuminated 11 to 14 V → Below 1 V
      Q8-12 (SSLB) - Body ground SB - Body ground Driver side backle sensor output Buckle motor operating 4.7 to 5.1 V
      Q8-16 (SGND) - Body ground GR - Body ground Ground Always Below 1 Ω
      Q8-20 (DBCL) - Body ground BR - Body ground Driver side tongue plate fastening condition Driver side seat belt is fastened Below 1 V
      Driver side seat belt is unfastened 11 to 14 V

  2. NO. 2 POSITION CONTROL ECU ASSEMBLY

    B004VATE02

    1. Disconnect the Q27 and Q28 No. 2 position control ECU assembly connector.

    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
      Q27-1 (+B2) - Body ground W - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      Q28-1 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      Q28-2 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the Q27 and Q28 No. 2 position control ECU assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      Q26-4 (BCL-) - Body ground B - Body ground Front passenger side backle motor DOWN output Easy access buckle function OFF Below 1 V
      B - Body ground Easy access buckle function ON (descended) 11 to 14 V
      Q26-10 (BCL+) - Body ground R - Body ground Front passenger side backle motor UP output Easy access buckle function OFF Below 1 V
      Easy access buckle function ON (raised) 11 to 14 V
      Q27-23 (BCLL) - Body ground BR - Body ground Front passenger side buckle switch LED light output Buckle switch LED light illuminated → not illuminated 11 to 14 V → Below 1 V
      Q28-12 (SSLB) - Body ground SB - Body ground Front passenger side backle sensor output Buckle motor operating 4.7 to 5.1 V
      Q28-16 (SGND) - Body ground GR - Body ground Ground Always Below 1 Ω
      Q28-20 (DBCL) - Body ground BR - Body ground Front passenger side tongue plate fastening condition Driver side seat belt is fastened Below 1 V
      Driver side seat belt is unfastened 11 to 14 V

  3. CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    B004TKOC30
    *1 Main Body ECU (Multiplex Network Body ECU) - -

    1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

      Click here

    2. Reconnect the instrument panel junction block assembly connectors.

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

      Tester Connection Wiring Color Input/Output Terminal Description Condition Specified Condition Related Data List Item
      A-11 (GND1) - Body ground - - Ground Always Below 1 Ω -
      A-30 (ACC) - Body ground - Input ACC power supply Power switch on (ACC) 11 to 14 V ACC SW
      Power switch off Below 1 V
      A-31 (BECU) - Body ground - Input Auxiliary battery power supply Power switch off 11 to 14 V -
      A-32 (IG) - Body ground - Input IG power supply Power switch on (IG) 11 to 14 V IG SW
      Power switch off Below 1 V

    4. Install the main body ECU (multiplex network body ECU) to the instrument panel junction block assembly

      Click here

    5. Measure the voltage and pulse according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G12-2 (FLCL) - Body ground V - Body ground Courtesy light assembly (for Front LH Side) output Courtesy light assembly (for front LH side) on Below 1 V
      Courtesy light assembly (for front LH side) off 11 to 14 V
      G12-3 (FRCL) - Body ground G - Body ground Courtesy light assembly (for Front RH Side) output Courtesy light assembly (for front RH side) on 11 to 14 V
      Courtesy light assembly (for front RH side) off Below 1 V