POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU

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

    C278789N02
    C278790C04

    *A

    Main Body ECU (Multiplex Network Body ECU) with 1 connector

    *B

    Main Body ECU (Multiplex Network Body ECU) with 3 connectors

    *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.

      for LHD:Click here

      for RHD:Click here

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

      Tester Connection

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      A-11 (GND1) - Body ground

      -

      Ground

      Always

      Below 1 Ω

      A-30 (BECU) - Body ground

      -

      Auxiliary battery power supply

      Always

      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-32 (IG) - Body ground

      -

      IG power supply

      Power switch on (IG)

      11 to 14 V

      A-32 (IG) - Body ground

      -

      IG power supply

      Power switch off

      Below 1 V

    3. Install the main body ECU (multiplex network body ECU).

      for LHD:Click hereClick here

      for RHD:Click hereClick here

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

      Tip:

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

      Tester Connection

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      3E-1 (ACT-) - Body ground

      BR - Body ground

      Door lock motor unlock drive output (all door)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder off

      Below 1 V

      3E-1 (ACT-) - Body ground

      BR - Body ground

      Door lock motor unlock drive output (all door)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder unlocked

      11 to 14 V

      3D-4 (ACT-) - Body ground

      B - Body ground

      Door lock motor unlock drive output (all door)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder off

      Below 1 V

      3D-4 (ACT-) - Body ground

      B - Body ground

      Door lock motor unlock drive output (all door)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder unlocked

      11 to 14 V

      3D-3 (ACT-) - Body ground

      B - Body ground

      Door lock motor unlock drive output (all door)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder off

      Below 1 V

      3D-3 (ACT-) - Body ground

      B - Body ground

      Door lock motor unlock drive output (all door)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder unlocked

      11 to 14 V

      3D-5 (ACT-) - Body ground*4

      B - Body ground

      Door lock motor unlock drive output (all door)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder off

      Below 1 V

      3D-5 (ACT-) - Body ground*4

      B - Body ground

      Door lock motor unlock drive output (all door)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder unlocked

      11 to 14 V

      3D-10 (ACTD) - Body ground*3

      B - Body ground

      Door lock motor unlock drive output (all door)

      Power window regulator master switch assembly, door control switch assembly or driver door key cylinder off

      Below 1 V

      3D-10 (ACTD) - Body ground*3

      B - Body ground

      Door lock motor unlock drive output (all door)

      Power window regulator master switch assembly, door control switch assembly or driver door key cylinder unlocked

      11 to 14 V

      3D-13 (ACT+) - Body ground

      R - Body ground

      Door lock motor lock drive output (all doors)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder locked

      11 to 14 V

      3D-13 (ACT+) - Body ground

      R - Body ground

      Door lock motor lock drive output (all doors)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder off

      Below 1 V

      3D-11 (ACT+) - Body ground

      R - Body ground

      Door lock motor lock drive output (all doors)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder locked

      11 to 14 V

      3D-11 (ACT+) - Body ground

      R - Body ground

      Door lock motor lock drive output (all doors)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder off

      Below 1 V

      3D-12 (ACT+) - Body ground

      R - Body ground

      Door lock motor lock drive output (all doors)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder locked

      11 to 14 V

      3D-12 (ACT+) - Body ground

      R - Body ground

      Door lock motor lock drive output (all doors)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder off

      Below 1 V

      3E-7 (ACT+) - Body ground

      R - Body ground

      Door lock motor lock drive output (all doors)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder locked

      Below 1 V

      3E-7 (ACT+) - Body ground

      R - Body ground

      Door lock motor lock drive output (all doors)

      Door control switch (power window regulator master switch assembly) or driver door key cylinder locked

      11 to 14 V

      G78-19 (FRCY) - Body ground

      L - Body ground*1

      GR - Body ground*2

      Front door courtesy light switch RH input

      Front door RH open

      Below 1 V

      G78-19 (FRCY) - Body ground

      L - Body ground*1

      GR - Body ground*2

      Front door courtesy light switch RH input

      Front door RH closed

      Pulse generation

      3E-40 (FLCY) - Body ground

      W - Body ground

      Front door courtesy light switch LH input

      Front door LH open

      Below 1 V

      3E-40 (FLCY) - Body ground

      W - Body ground

      Front door courtesy light switch LH input

      Front door LH closed

      Pulse generation

      G78-1 (LCTY) - Body ground*3

      W - Body ground

      Rear door courtesy light switch LH input

      Rear door LH open

      Below 1 V

      G78-1 (LCTY) - Body ground*3

      W - Body ground

      Rear door courtesy light switch LH input

      Rear door LH closed

      Pulse generation

      G78-24 (LCTY) - Body ground*4

      W - Body ground*1

      SB - Body ground*2

      Rear door courtesy light switch LH input

      Rear door LH open

      Below 1 V

      G78-24 (LCTY) - Body ground*4

      W - Body ground*1

      SB - Body ground*2

      Rear door courtesy light switch LH input

      Rear door LH closed

      Pulse generation

      G78-6 (RCTY) - Body ground

      Y - Body ground

      Rear door courtesy light switch RH input

      Rear door RH open

      Below 1 V

      G78-6 (RCTY) - Body ground

      Y - Body ground

      Rear door courtesy light switch RH input

      Rear door RH closed

      Pulse generation

      G78-9 (L1) - Body ground

      P - Body ground*1

      V - Body ground*2

      Door control switch input

      Door control switch locked

      Below 1 V

      G78-9 (L1) - Body ground

      P - Body ground*1

      V - Body ground*2

      Door control switch input

      Door control switch off

      Pulse generation

      G78-10 (UL1) - Body ground

      B - Body ground*1

      W - Body ground*2

      Door control switch input

      Door control switch unlocked

      Below 1 V

      G78-10 (UL1) - Body ground

      B - Body ground*1

      W - Body ground*2

      Door control switch input

      Door control switch off

      Pulse generation

      G78-11 (L2) - Body ground

      BR - Body ground*1

      R - Body ground*2

      Driver door key-linked lock input

      Driver door key cylinder turned to lock position

      Below 1 V

      G78-11 (L2) - Body ground

      BR - Body ground*1

      R - Body ground*2

      Driver door key-linked lock input

      Driver door key cylinder off

      Pulse generation

      G78-24 (UL3) - Body ground*3

      LG - Body ground

      Driver door key-linked unlock input

      Driver door key cylinder turned to unlock position

      Below 1 V

      G78-24 (UL3) - Body ground*3

      LG - Body ground

      Driver door key-linked unlock input

      Driver door key cylinder off

      Pulse generation

      G78-12 (UL2) - Body ground*4

      LG - Body ground*1

      L - Body ground*2

      Driver door key-linked unlock input

      Driver door key cylinder turned to unlock position

      Below 1 V

      G78-12 (UL2) - Body ground*4

      LG - Body ground*1

      L - Body ground*2

      Driver door key-linked unlock input

      Driver door key cylinder off

      Pulse generation

      G78-7 (LSFL) - Body ground

      B - Body ground

      Front door LH unlock detection switch input

      Front door LH unlocked

      Below 1 V

      G78-7 (LSFL) - Body ground

      B - Body ground

      Front door LH unlock detection switch input

      Front door LH locked

      Pulse generation

      G78-18 (LSFR) - Body ground

      P - Body ground

      Front door RH unlock detection switch input

      Front door RH unlocked

      Below 1 V

      G78-18 (LSFR) - Body ground

      P - Body ground

      Front door RH unlock detection switch input

      Front door RH locked

      Pulse generation

      3E-32 (LSR) - Body ground

      Y - Body ground

      Rear door RH unlock detection switch input

      Rear door RH or LH unlocked

      Below 1 V

      3E-32 (LSR) - Body ground

      Y - Body ground

      Rear door RH unlock detection switch input

      Rear door RH and LH locked

      Pulse generation

      3C-41 (LSR) - Body ground

      Y - Body ground

      Rear door LH unlock detection switch input

      Rear door LH or RH unlocked

      Below 1 V

      3C-41 (LSR) - Body ground

      Y - Body ground

      Rear door LH unlock detection switch input

      Rear door LH and RH locked

      Pulse generation

      3E-33 (BCTY) - Body ground

      GR - Body ground

      Back door courtesy light switch input

      Back door open

      Below 1 V

      3E-33 (BCTY) - Body ground

      GR - Body ground

      Back door courtesy light switch input

      Back door closed

      11 to 14 V

      3E-8 (TR+) - Body ground*5

      R - Body ground

      Back door lock motor unlock drive output

      Back door opener switch (open switch) pushed

      11 to 14 V

      3E-8 (TR+) - Body ground*5

      R - Body ground

      Back door lock motor unlock drive output

      Back door opener switch (open switch) not pushed

      Below 1 V

      *1: for LHD

      *2: for RHD

      *3: w/ Panic Switch

      *4: w/o Panic Switch

      *5: w/o Power Back Door System

  2. CHECK CERTIFICATION ECU (SMART KEY ECU assembly)

    1. Disconnect the G82 certification ECU (smart key ECU assembly) connector.

      B264892N74

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

      Tip:

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

      Tester Connection

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      G82-11 (E) - Body ground

      BR - Body ground

      Ground

      Always

      Below 1 Ω

      G82-2 (+B) - Body ground

      W - Body ground

      Auxiliary battery power supply

      Always

      11 to 14 V

    3. Reconnect the G82 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

      G83-27 (TSW5) - Body ground

      Y - Body ground

      Back door opener switch (open switch) input

      Back door opener switch (open switch) pushed

      Below 1 V

      G83-27 (TSW5) - Body ground

      Y - Body ground

      Back door opener switch (open switch) input

      Back door opener switch (open switch) not pushed

      Pulse generation

      G83-28 (TSW6) - Body ground

      L - Body ground

      Back door opener switch (close switch) input

      Back door opener switch (close switch) pushed

      Below 1 V

      G83-28 (TSW6) - Body ground

      L - Body ground

      Back door opener switch (close switch) input

      Back door opener switch (close switch) not pushed

      Pulse generation

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

    1. Disconnect the G187 double lock door control relay assembly connector.

      B409283N02

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

      Tip:

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

      Tester Connection

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      G187-7 (GND) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      G187-11 (CPUB) - Body ground

      V - Body ground

      Auxiliary battery power supply

      Always

      11 to 14 V

      G187-12 (+B) - Body ground

      G - Body ground

      Auxiliary battery power supply

      Always

      11 to 14 V

    3. Reconnect the G187 double lock door control relay assembly connector.

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

      Tester Connection

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      G187-1 (ACTR) - Body ground

      LG - Body ground

      All door double lock motor set off output

      Double lock set → not set

      Below 1 V → 11 to 14 V → Below 1 V

      G187-3 (DLPL) - Body ground

      P - Body ground

      Rear door LH side double locking switch input

      Double lock not set

      10 kΩ or higher

      Double lock set

      Below 1 Ω

      G187-4 (DLPR) - Body ground

      P - Body ground

      Rear door RH side double locking switch input

      Double lock not set

      10 kΩ or higher

      Double lock set

      Below 1 Ω

      G187-5 (DLPP) - Body ground

      P - Body ground

      Front door LH side double locking switch input

      Double lock not set

      10 kΩ or higher

      Double lock set

      Below 1 Ω

      G187-6 (DLPD) - Body ground

      B - Body ground

      Front door RH side double locking switch input

      Double lock not set

      10 kΩ or higher

      Double lock set

      Below 1 Ω

      G187-8 (ACTS) - Body ground

      L - Body ground

      All door double lock motor set on output

      Double lock not set → set

      Below 1 V → 11 to 14 V → Below 1 V