POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


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


    1. Disconnect the 2B and 2C junction block connectors.

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    2. Disconnect the A main body ECU connector.

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

      Tech Tips

      Measure the values on the wire harness side with the connectors disconnected.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      2B-6 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      2C-18 (BECU) - Body ground Y - Body ground Battery power supply Power switch off 11 to 14 V
      A-29 (ACC) - Body ground - ACC power supply Power switch on (ACC) 11 to 14 V
      A-29 (ACC) - Body ground - ACC power supply Power switch off Below 1 V
      A-31 (ALTB) - Body ground - Battery power supply Power switch off 11 to 14 V
      A-32 (IG) - Body ground - Power switch power supply Power switch on (IG) 11 to 14 V
      A-32 (IG) - Body ground - Power switch power supply Power switch off Below 1 V

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

    4. Reconnect the 2B and 2C junction block connectors.

    5. Reconnect the A main body ECU connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      2B-1 (ACT-) - Body ground SB - Body ground Door lock motor unlock drive output (all doors) Driver side door control switch off Below 1 V
      2B-1 (ACT-) - Body ground SB - Body ground Door lock motor unlock drive output (all doors) Driver side door control switch unlocked 11 to 14 V
      2B-9 (ACT+) - Body ground R - Body ground Door lock motor lock drive output (all doors) Driver side door control switch off Below 1 V
      2B-9 (ACT+) - Body ground R - Body ground Door lock motor lock drive output (all doors) Driver side door control switch locked 11 to 14 V
      2B-31 (FRCY) - Body ground BR - Body ground Front door courtesy switch RH input Front door RH open Below 1 V
      2B-31 (FRCY) - Body ground BR - Body ground Front door courtesy switch RH input Front door RH closed 11 to 14 V
      2D-35 (FLCY) - Body ground W - Body ground Front door courtesy switch LH input Front door LH open Below 1 V
      2D-35 (FLCY) - Body ground W - Body ground Front door courtesy switch LH input Front door LH closed 11 to 14 V
      2D-25 (LSR) - Body ground*1 Y - Body ground Rear door LH lock position switch input Rear door LH unlocked Below 1 V
      2D-25 (LSR) - Body ground*1 Y - Body ground Rear door LH lock position switch input Power switch off, all doors closed and rear door LH locked 11 to 14 V
      2B-29 (LSR) - Body ground*1 Y - Body ground Rear door RH lock position switch input Rear door RH unlocked Below 1 V
      2B-29 (LSR) - Body ground*1 Y - Body ground Rear door RH lock position switch input Power switch off, all doors closed and rear door RH locked 11 to 14 V
      E120-23 (LCTY) - Body ground SB - Body ground Rear door courtesy light switch LH input Rear left side door open Below 1 V
      E120-23 (LCTY) - Body ground SB - Body ground Rear door courtesy light switch LH input Rear left side door closed 11 to 14 V
      E120-6 (RCTY) - Body ground LG - Body ground Rear door courtesy light switch RH input Rear right side door open Below 1 V
      E120-6 (RCTY) - Body ground LG - Body ground Rear door courtesy light switch RH input Rear right side door closed 11 to 14 V
      E120-7 (LSFL) - Body ground Y - Body ground Front door LH lock position switch input Front door LH unlocked Below 1 V
      E120-7 (LSFL) - Body ground Y - Body ground Front door LH lock position switch input Power switch off, all doors closed and front door LH locked 11 to 14 V
      E120-11 (L2) - Body ground SB - Body ground Driver door key-linked lock input Driver door key cylinder turned to lock Below 1 V
      E120-11 (L2) - Body ground SB - Body ground Driver door key-linked lock input Driver door key cylinder off 11 to 14 V
      E120-18 (LSFR) - Body ground LG - Body ground Front door RH lock position switch input Front door RH unlocked Below 1 V
      E120-18 (LSFR) - Body ground LG - Body ground Front door RH lock position switch input Power switch off, all doors closed and front door RH locked 11 to 14 V
      E120-19 (BCTY) - Body ground LG - Body ground Back door courtesy light switch input Back door open Below 1 V
      E120-19 (BCTY) - Body ground LG - Body ground Back door courtesy light switch input Back door closed 11 to 14 V
      E120-12 (UL2) - Body ground P - Body ground Driver door key-linked unlock input Driver door key cylinder turned to unlock Below 1 V
      E120-12 (UL2) - Body ground P - Body ground Driver door key-linked unlock input Driver door key cylinder off 11 to 14 V

      *1: w/ Double Locking System

      If the result is not as specified, the main body ECU (multiplex network body ECU) may have a malfunction.

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

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    1. Disconnect the E117 certification ECU (smart key ECU assembly) connector.

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

      Tech Tips

      Measure the values on the wire harness side with the connector disconnected.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      E117-7 (TSW5) - Body ground BE - Body ground Back door opener switch signal Back door opener switch on Below 1 Ω
      E117-7 (TSW5) - Body ground BE - Body ground Back door opener switch signal Back door opener switch off 10 kΩ or higher

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

    3. Reconnect the E117 certification ECU (smart key ECU assembly) connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      E117-7 (TSW5) - Body ground BE - Body ground Back door opener switch signal Back door opener switch off 11 to 14 V
      E117-7 (TSW5) - Body ground BE - Body ground Back door opener switch signal Back door opener switch on Below 1 V

      If the result is not as specified, the certification ECU (smart key ECU assembly) may have a malfunction.

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


    1. Disconnect the E72 double lock door control relay assembly connector.

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

      Tech Tips

      Measure the values on the wire harness side with the connector disconnected.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      E72-1 (+B) - Body ground B - Body ground Battery power supply Power switch off 11 to 14 V
      E72-7 (CPUB) - Body ground W - Body ground Battery power supply Power switch off 11 to 14 V
      E72-14 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

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

    3. Reconnect the E72 double lock door control relay assembly connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      E72-5 (DLPD) - Body ground GR - Body ground Front RH double lock position switch input Double lock unset Pulse generation
      E72-5 (DLPD) - Body ground GR - Body ground Front RH double lock position switch input Double lock set Below 1 V
      E72-6 (DLPP) - Body ground L - Body ground Front LH double lock position switch input Double lock unset Pulse generation
      E72-6 (DLPP) - Body ground L - Body ground Front LH double lock position switch input Double lock set Below 1 V
      E72-11 (DLPR) - Body ground L - Body ground Rear RH double lock position switch input Double lock unset Pulse generation
      E72-11 (DLPR) - Body ground L - Body ground Rear RH double lock position switch input Double lock set Below 1 V
      E72-12 (DLPL) - Body ground P - Body ground Rear LH double lock position switch input Double lock unset Pulse generation
      E72-12 (DLPL) - Body ground P - Body ground Rear LH double lock position switch input Double lock set Below 1 V
      E72-3 (ACTS) - Body ground BR - Body ground All door double lock motor set on output Double lock unset Below 1 V
      E72-3 (ACTS) - Body ground BR - Body ground All door double lock motor set on output Double lock set 11 to 14 V
      E72-4 (ACTR) - Body ground G - Body ground All door double lock motor set off output Double lock set Below 1 V
      E72-4 (ACTR) - Body ground G - Body ground All door double lock motor set off output Double lock unset 11 to 14 V

      If the result is not as specified, the double lock door control relay assembly may have a malfunction.