POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


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

    A003P6TC18
    *A Main Body ECU (Multiplex Network Body ECU) with 2 Connectors - -
    *1 Main Body ECU (Multiplex Network Body ECU) - -
    *a 2 Connectors - -
    B006IU3C22
    *A Main Body ECU (Multiplex Network Body ECU) with 1 Connector - -
    *1 Main Body ECU (Multiplex Network Body ECU) - -
    *a 1 Connector - -

    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.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      MB-11 (GND1) - Body ground - Ground Always Below 1 Ω
      MB-30 (ACC) - Body ground - ACC power supply Power switch on (ACC) 11 to 14 V
      MB-30 (ACC) - Body ground - ACC power supply Power switch off Below 1 V
      MB-31 (BECU) - Body ground - Auxiliary battery power supply Power switch off 11 to 14 V
      MB-32 (IG) - Body ground - IG power supply Power switch on (IG) 11 to 14 V
      MB-32 (IG) - Body ground - IG power supply 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.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I18-2 (UL3) - Body ground G - Body ground Driver door key-linked unlock input Driver door key cylinder in neutral position → on (unlock) Pulse generation → Below 1 V
      I18-29 (L2) - Body ground V - Body ground Driver door key-linked lock input Driver door key cylinder in neutral position → on (lock) Pulse generation → Below 1 V
      I18-6 (FLCY) - Body ground BR - Body ground Front door courtesy light switch (for LH) input Front door LH open Below 1 V
      I18-6 (FLCY) - Body ground BR - Body ground Front door courtesy light switch (for LH) input Front door LH closed Pulse generation
      I18-27 (FRCY) - Body ground L - Body ground Front door courtesy light switch (for RH) input Front door RH open Below 1 V
      I18-27 (FRCY) - Body ground L - Body ground Front door courtesy light switch (for RH) input Front door RH closed Pulse generation
      3H-8 (ACT-) - Body ground

      LA-R - Body ground*1

      R - Body ground*2

      		 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
      3H-9 (ACT-) - Body ground L - Body ground 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
      3H-6 (ACT+) - Body ground L - Body ground Door lock motor lock drive output Door control switch or driver door key cylinder off → on (lock) Below 1 V → 11 to 14 V → Below 1 V
      3H-18 (ACT+) - Body ground V - Body ground Door lock motor lock drive output Door control switch or driver door key cylinder off → on (lock) Below 1 V → 11 to 14 V → Below 1 V
      3D-4 (ACTD) - Body ground*3 BE - Body ground 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
      3H-24 (LCTY) - Body ground BR - Body ground Rear door courtesy light switch (for LH) input Rear door LH open Below 1 V
      3H-24 (LCTY) - Body ground BR - Body ground Rear door courtesy light switch (for LH) input Rear door LH closed Pulse generation
      3A-31 (RCTY) - Body ground GR - Body ground Rear door courtesy light switch (for RH) input Rear door RH open Below 1 V
      3A-31 (RCTY) - Body ground GR - Body ground Rear door courtesy light switch (for RH) input Rear door RH closed Pulse generation
      3H-34 (BCTY) - Body ground SB - Body ground Back door courtesy light switch input Back door open Below 1 V
      3H-34 (BCTY) - Body ground SB - Body ground Back door courtesy light switch input Back door closed Pulse generation
      3H-20 (TR+) - Body ground P - Body ground Back door lock motor drive output Back door closed → open Below 1 V → 11 to 14 V → Below 1 V
      3D-14 (LSR) - Body ground LG - Body ground Rear door LH/RH unlock detection switch input Rear door LH or RH unlocked Below 1 V
      3D-14 (LSR) - Body ground LG - Body ground Rear door LH/RH unlock detection switch input Rear door LH and RH locked Pulse generation
      3D-12 (LSFR) - Body ground V - Body ground Front door RH unlock detection switch input Front door RH unlocked Below 1 V
      3D-12 (LSFR) - Body ground V - Body ground Front door RH unlock detection switch input Front door RH locked Pulse generation
      3D-13 (LSFL) - Body ground GR - Body ground Front door LH unlock detection switch input Front door LH unlocked Below 1 V
      3D-13 (LSFL) - Body ground GR - Body ground Front door LH unlock detection switch input Front door LH locked Pulse generation
      3D-16 (L1) - Body ground*3 R - Body ground Door control switch input Door control switch assembly off → on (lock) Pulse generation → Below 1 V
      3A-39 (UL1) - Body ground*3 BE - Body ground Door control switch input Door control switch assembly off → on (unlock) Pulse generation → Below 1 V
      I18-18 (BDSU) - Body ground*4 R - Body ground Back door opener switch input Back door opener switch pushed Below 1 V
      I18-18 (BDSU) - Body ground*4 R - Body ground Back door opener switch input Back door opener switch not pushed Pulse generation

      • *1: for LHD

      • *2: for RHD

      • *3: w/ Canister Pump Module

      • *4: w/o Entry System Back Door Open Function

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Entry System Back Door Open Function)

    A003NAXN39

    1. Disconnect the I1 certification ECU (smart key 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
      I1-4 (+B) - Body ground GR - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      I1-18 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the I1 certification ECU (smart key ECU assembly) connector.

    4. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      N54-26 (TSW5) - Body ground B - Body ground Back door opener switch input Back door opener switch assembly (open switch) off → on Below 1 V → Pulse generation

  3. CHECK DOUBLE LOCK DOOR CONTROL RELAY ASSEMBLY (w/ Double Locking System)

    A003L1HN14

    1. Disconnect the I16 double lock door control relay 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
      I16-12 (+B) - Body ground R - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      I16-11 (CPUB) - Body ground P - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      I16-7 (GND) - Body ground LA - Body ground Ground Always Below 1 Ω

    3. Reconnect the I16 double lock door control relay assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I16-8 (ACTS) - Body ground LG - Body ground All door double lock motor set on output Double lock unset Below 1 V
      I16-8 (ACTS) - Body ground LG - Body ground All door double lock motor set on output Double lock set 11 to 14 V
      I16-1 (ACTR) - Body ground GR - Body ground All door double lock motor set off output Double lock set Below 1 V
      I16-1 (ACTR) - Body ground GR - Body ground All door double lock motor set off output Double lock unset 11 to 14 V
      I16-6 (DLPD) - Body ground G - Body ground Front RH double lock position switch input Double lock unset Pulse generation
      I16-6 (DLPD) - Body ground G - Body ground Front RH double lock position switch input Double lock set Below 1 V
      I16-5 (DLPP) - Body ground V - Body ground Front LH double lock position switch input Double lock unset Pulse generation
      I16-5 (DLPP) - Body ground V - Body ground Front LH double lock position switch input Double lock set Below 1 V
      I16-4 (DLPR) - Body ground B - Body ground Rear RH double lock position switch input Double lock unset Pulse generation
      I16-4 (DLPR) - Body ground B - Body ground Rear RH double lock position switch input Double lock set Below 1 V
      I16-3 (DLPL) - Body ground SB - Body ground Rear LH double lock position switch input Double lock unset Pulse generation
      I16-3 (DLPL) - Body ground SB - Body ground Rear LH double lock position switch input Double lock set Below 1 V