POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


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

    B004TKOC25
    *1 Main Body ECU (Multiplex Network Body ECU) - -

    • *1: for LHD

    • *2: for RHD


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

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    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.

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    5. Measure the voltage and check for pulses according to the value(s) in the table below.

      Tester Connection Wiring Color Input/Output Terminal Description Condition Specified Condition Related Data List Item
      G12-1 (FLCY) - Body ground R - Body ground Input Front door courtesy light switch assembly LH input Front door LH open → closed Below 1 V → 4.7 to 5.3 V FL Door Courtesy SW
      G12-6 (FRCY) - Body ground

      SB - Body ground*1

      R - Body ground*2

      		 Input Front door courtesy light switch assembly RH input Front door RH open → closed Below 1 V → 4.7 to 5.3 V FR Door Courtesy SW
      5H-26 (LCTY) - Body ground*1 G - Body ground Input Rear door courtesy light switch assembly LH input Rear door LH open → closed Below 1 V → 4.7 to 5.3 V RL Door Courtesy SW
      5A-42 (LCTY) - Body ground*2 G - Body ground Input Rear door courtesy light switch assembly LH input Rear door LH open → closed Below 1 V → 4.7 to 5.3 V RL Door Courtesy SW
      5D-19 (RCTY) - Body ground*1 R - Body ground Input Rear door courtesy light switch assembly RH input Rear door RH open → closed Below 1 V → 4.7 to 5.3 V RR Door Courtesy SW
      5H-26 (RCTY) - Body ground*2 R - Body ground Input Rear door courtesy light switch assembly RH input Rear door RH open → closed Below 1 V → 4.7 to 5.3 V
      G17-18 (L2) - Body ground Y - Body ground Input Driver and front passenger door key-linked lock input Driver or front passenger door key cylinder turned to neutral position → on (lock) Pulse generation → Below 1 V Door Key SW-Lock
      G17-17 (UL3) - Body ground LG - Body ground Input Driver door key-linked unlock input Driver door key cylinder turned to neutral position → on (unlock) Pulse generation → Below 1 V D Door Key SW-UL
      5A-2 (ACT+) - Body ground LA-G - Body ground Output Door lock motor lock drive output Door control switch or door key cylinder off → on (lock) Below 1 V → 11 to 14 V → Below 1 V -
      5H-18 (ACT+) - Body ground LA-G - Body ground Output Door lock motor lock drive output Door control switch or door key cylinder off → on (lock) Below 1 V → 11 to 14 V → Below 1 V -
      5H-6 (ACT+) - Body ground LA-G - Body ground Output Door lock motor lock drive output Door control switch or door key cylinder off → on (lock) Below 1 V → 11 to 14 V → Below 1 V -
      5A-1 (ACT-) - Body ground LA-LG - Body ground Output Front passenger door lock motor unlock drive output Door control switch front passenger door key cylinder off → on (unlock) Below 1 V → 11 to 14 V → Below 1 V -
      5H-7 (ACT-) - Body ground LA-LG - Body ground Output Front passenger door lock motor unlock drive output Door control switch front passenger door key cylinder off → on (unlock) Below 1 V → 11 to 14 V → Below 1 V -
      5H-8 (ACTD) - Body ground

      LA-LG - Body ground*1

      LA-R - Body ground*2

      		 Output Driver door lock motor unlock drive output Door control switch or driver door key cylinder off → on (unlock) Below 1 V → 11 to 14 V → Below 1 V -
      5D-14 (LSFR) - Body ground*1 GR - Body ground Input Front door RH unlock detection switch input Front door RH locked → unlocked Pulse generation → Below 1 V FR Door Lock Pos
      5H-31 (LSFR) - Body ground*2 GR - Body ground Input Front door RH unlock detection switch input Front door RH locked → unlocked Pulse generation → Below 1 V FR Door Lock Pos
      5H-31 (LSFL) - Body ground*1 P - Body ground Input Front door LH unlock detection switch input Front door LH locked → unlocked Pulse generation → Below 1 V FL Door Lock Pos
      5A-15 (LSFL) - Body ground*2 B - Body ground Input Front door LH unlock detection switch input Front door LH locked → unlocked Pulse generation → Below 1 V FL Door Lock Pos
      G13-20 (LSWR) - Body ground B - Body ground Input Rear door RH unlock detection switch input Rear door RH locked → unlocked Pulse generation → Below 1 V RR-Door Lock Pos SW
      5H-21 (LSWL) - Body ground*1 B - Body ground Input Rear door LH unlock detection switch input Rear door LH locked → unlocked Pulse generation → Below 1 V RL-Door Lock Pos SW
      5D-12 (LSWL) - Body ground*2 SB - Body ground Input Rear door LH unlock detection switch input Rear door LH locked → unlocked Pulse generation → Below 1 V RL-Door Lock Pos SW
      5D-13 (L1) - Body ground*1 P - Body ground Input Front passenger door control switch input Front passenger door control switch off → on (lock) Pulse generation → Below 1 V Door Lock Switch Status
      5A-38 (L1) - Body ground*2 P - Body ground Input Front passenger door control switch input Front passenger door control switch off → on (lock) Pulse generation → Below 1 V Door Lock Switch Status
      5D-12 (UL1) - Body ground*1 R - Body ground Input Front passenger door control switch input Front passenger door control switch off → on (unlock) Pulse generation → Below 1 V Door Unlock Switch Status
      5A-39 (UL1) - Body ground*2 R - Body ground Input Front passenger door control switch input Front passenger door control switch off → on (unlock) Pulse generation → Below 1 V Door Unlock Switch Status
      5A-46 (GSW) - Body ground B - Body ground Input Collision detection input Power switch on (IG) 2.9 to 4.2 V -

  2. CHECK FRONT MULTIPLEX NETWORK DOOR ECU LH (w/ Double Locking System)

    B004RR2E07

    1. Disconnect the H31 front multiplex network door ECU LH connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      H31-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      H31-6 (BDR) - H31-1 (GND) R - W-B Battery power supply Power switch off 11 to 14 V
      H31-4 (CPUB) - H31-1 (GND) L - W-B Battery power supply Power switch off 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the H31 front multiplex network door ECU LH connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      H29-5 (A1+) - H31-1 (GND) LA-R - W-B Double lock motor drive output Wireless or entry operation performed to set double lock 11 to 14 V
      Wireless or entry operation not performed Below 1 V
      H29-6 (A1-) - H31-1 (GND) LA-L - W-B Double lock motor drive output Wireless or entry operation performed to unset double lock 11 to 14 V
      Wireless or entry operation not performed Below 1 V
      H29-24 (DBLS) - H29-4 (DBE) V - BR Double lock position switch signal input Double lock UNSET Pulse generation
      Double lock SET Below 1 V

  3. CHECK FRONT MULTIPLEX NETWORK DOOR ECU RH (w/ Double Locking System)

    B004RR2E08

    1. Disconnect the H12 front multiplex network door ECU RH connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      H12-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      H12-6 (BDR) - H12-1 (GND) R - W-B Battery power supply Power switch off 11 to 14 V
      H12-4 (CPUB) - H12-1 (GND) L - W-B Battery power supply Power switch off 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the H12 front multiplex network door ECU LH connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      H10-5 (A1+) - H12-1 (GND) LA-R - W-B Double lock motor drive output Wireless or entry operation performed to set double lock 11 to 14 V
      Wireless or entry operation not performed Below 1 V
      H10-6 (A1-) - H12-1 (GND) LA-L - W-B Double lock motor drive output Wireless or entry operation performed to unset double lock 11 to 14 V
      Wireless or entry operation not performed Below 1 V
      H10-24 (DBLS) - H10-4 (DBE) V - BR Double lock position switch signal input Double lock UNSET Pulse generation
      Double lock SET Below 1 V

  4. CHECK REAR MULTIPLEX NETWORK DOOR ECU LH (w/ Double Locking System)

    B004W3RN04

    1. Disconnect the K21 rear multiplex network door ECU LH connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      K21-1 (GND) - Body ground LA - Body ground Ground Always Below 1 Ω
      K21-4 (BDR) - K21-1 (GND) L - LA Battery power supply Power switch off 11 to 14 V
      K21-11 (CPUB) - K21-1 (GND) L - LA Battery power supply Power switch off 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the K21 rear multiplex network door ECU LH connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      K20-5 (A1+) - K21-1 (GND) LA-GR - LA Double lock motor drive output Wireless or entry operation performed to set double lock 11 to 14 V
      Wireless or entry operation not performed Below 1 V
      K20-6 (A1-) - K21-1 (GND) LA-G - LA Double lock motor drive output Wireless or entry operation performed to unset double lock 11 to 14 V
      Wireless or entry operation not performed Below 1 V
      K20-24 (DBLS) - K20-4 (DLE1) GR - BE Double lock position switch signal input Double lock UNSET Pulse generation
      Double lock SET Below 1 V

  5. CHECK REAR MULTIPLEX NETWORK DOOR ECU RH (w/ Double Locking System)

    B004W3RN03

    1. Disconnect the K7 rear multiplex network door ECU RH connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      K7-1 (GND) - Body ground LA - Body ground Ground Always Below 1 Ω
      K7-4 (BDR) - K7-1 (GND) B - LA Battery power supply Power switch off 11 to 14 V
      K7-11 (CPUB) - K7-1 (GND) L - LA Battery power supply Power switch off 11 to 14 V

      If the result is not as specified, there may be a malfunction on the wire harness side.

    3. Reconnect the K7 rear multiplex network door ECU RH connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      K6-5 (A1+) - K7-1 (GND) LA-GR - LA Double lock motor drive output Wireless or entry operation performed to set double lock 11 to 14 V
      Wireless or entry operation not performed Below 1 V
      K6-6 (A1-) - K7-1 (GND) LA-G - LA Double lock motor drive output Wireless or entry operation performed to unset double lock 11 to 14 V
      Wireless or entry operation not performed Below 1 V
      K6-24 (DBLS) - K6-4 (DLE1) GR - BE Double lock position switch signal input Double lock UNSET Pulse generation
      Double lock SET Below 1 V

  6. CHECK AIRBAG ECU ASSEMBLY

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