POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


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

    A004VX6E02

    1. Disconnect the 2B and 2C instrument panel junction block assembly connector.

    2. Disconnect the MB and H17 main body ECU (multiplex network 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 B - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      H17-3 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      MB-29 (ACC) - Body ground - ACC power supply Power switch on (ACC) 11 to 14 V
      MB-29 (ACC) - Body ground - ACC power supply Power switch off Below 1 V
      MB-31 (ALTB) - Body ground - Auxiliary battery power supply Power switch off 11 to 14 V
      MB-32 (IG) - Body ground - Power switch power supply Power switch on (IG) 11 to 14 V
      MB-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 instrument panel junction block assembly connector.

    5. Reconnect the MB and H17 main body ECU (multiplex network body ECU) connector.

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

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      2A-47 (GSW) - Body ground G - Body ground Airbag sensor signal (collision detection signal) Power switch on (IG) with airbag sensor assembly connector disconnected 4.5 to 5.5 V
      2B-1 (ACT-) - Body ground B - Body ground Door lock motor unlock drive output (except driver side) Multiplex network master switch (door control switch) or driver door key cylinder off Below 1 V
      2B-1 (ACT-) - Body ground B - Body ground Door lock motor unlock drive output (except driver side) Multiplex network master switch (door control switch) or driver door key cylinder unlocked 11 to 14 V
      2B-8 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (all doors) Multiplex network master switch (door control switch) or driver door key cylinder off Below 1 V
      2B-8 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (all doors) Multiplex network master switch (door control switch) or driver door key cylinder locked 11 to 14 V
      2B-5 (ACTD) - Body ground B - Body ground Driver door lock motor unlock drive output Multiplex network master switch (door control switch) or driver door key cylinder off Below 1 V
      2B-5 (ACTD) - Body ground B - Body ground Driver door lock motor unlock drive output Multiplex network master switch (door control switch) or driver door key cylinder unlocked 11 to 14 V
      2D-36 (FRCY) - Body ground BR - Body ground Front door courtesy light switch RH input

      Front passenger door open*1

      Driver door open*2

      		 Below 1 V
      2D-36 (FRCY) - Body ground BR - Body ground Front door courtesy light switch RH input

      Front passenger door closed*1

      Driver door closed*2

      		 11 to 14 V
      2D-35 (FLCY) - Body ground BR - Body ground Front door courtesy light switch LH input

      Driver door open*1

      Front passenger door open*2

      		 Below 1 V
      2D-35 (FLCY) - Body ground BR - Body ground Front door courtesy light switch LH input

      Driver door closed*1

      Front passenger door closed*2

      		 11 to 14 V
      H18-3 (LCTY) - Body ground G - Body ground Rear door LH courtesy light switch input Rear door LH open Below 1 V
      H18-3 (LCTY) - Body ground G - Body ground Rear door LH courtesy light switch input Rear door LH closed Pulse generation
      H16-6 (RCTY) - Body ground G - Body ground Rear door RH courtesy light switch input Rear door RH open Below 1 V
      H16-6 (RCTY) - Body ground G - Body ground Rear door RH courtesy light switch input Rear door RH closed Pulse generation
      H16-9 (L1) - Body ground LG - Body ground Front passenger door control switch input Front passenger door control switch locked Below 1 V
      H16-9 (L1) - Body ground LG - Body ground Front passenger door control switch input Front passenger door control switch off Pulse generation
      H16-10 (+B1) - Body ground BR - Body ground Front passenger door control switch input Front passenger door control switch unlocked Below 1 V
      H16-10 (+B1) - Body ground BR - Body ground Front passenger door control switch input Front passenger door control switch off Pulse generation
      H16-11 (L2) - Body ground G - Body ground Driver door key-linked lock input Driver door key cylinder turned to lock Below 1 V
      H16-11 (L2) - Body ground G - Body ground Driver door key-linked lock input Driver door key cylinder off 11 to 14 V
      H16-24 (UL3) - Body ground V - Body ground Driver door key-linked unlock input Driver door key cylinder turned to unlock Below 1 V
      H16-24 (UL3) - Body ground V - Body ground Driver door key-linked unlock input Driver door key cylinder off Pulse generation
      H16-7 (LSFL) - Body ground GR - Body ground

      Driver door unlock detection switch input*1

      Front passenger door unlock detection switch input*2

      Driver door unlocked*1

      Front passenger door unlocked*2

      		 Below 1 V
      H16-7 (LSFL) - Body ground GR - Body ground

      Driver door unlock detection switch input*1

      Front passenger door unlock detection switch input*2

      Power switch off, all doors closed and driver door locked*1

      Power switch off, all doors closed and front passenger door locked*2

      		 Pulse generation
      H16-18 (LSFR) - Body ground SB - Body ground

      Front passenger door unlock detection switch input*1

      Driver door unlock detection switch input*2

      Front passenger door unlocked*1

      Driver door unlocked*2

      		 Below 1 V
      H16-18 (LSFR) - Body ground SB - Body ground

      Front passenger door unlock detection switch input*1

      Driver door unlock detection switch input*2

      Power switch off, all doors closed and front passenger door locked*1

      Power switch off, all doors closed and driver door locked*2

      		 Pulse generation
      H17-2 (LSWR) - Body ground GR - Body ground Rear right door unlock detection switch input Rear right door unlocked Below 1 V
      H17-2 (LSWR) - Body ground GR - Body ground Rear right door unlock detection switch input Power switch off, all doors closed and rear right door locked 11 to 14 V
      2D-25 (LSWL) - Body ground GR - Body ground Rear door LH unlock detection switch input Rear door LH unlocked Below 1 V
      2D-25 (LSWL) - Body ground GR - Body ground Rear door LH unlock detection switch input Power switch off, all doors closed and rear door LH locked Pulse generation
      H16-19 (BCTY) - Body ground SB - Body ground Back door courtesy light switch input Back door open Below 1 V
      H16-19 (BCTY) - Body ground SB - Body ground Back door courtesy light switch input Back door closed 11 to 14 V
      H16-23 (BDSU) - Body ground*3 R - Body ground Back door opener switch pushed Back door opener switch pushed Below 1 V
      H16-23 (BDSU) - Body ground*3 R - Body ground Back door opener switch pushed Back door opener switch not pushed 11 to 14 V

      *1: for LHD

      *2: for RHD

      *3: w/o Entry System Back Door Open Function

      If the result is not as specified, the main body ECU (multiplex network body ECU) or instrument panel junction block assembly may have a malfunction.

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

    A004YYLE02

    1. Disconnect the H1 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
      H1-22 (TSW5) - Body ground LG - Body ground Back door opener switch signal Back door opener switch on Below 1 Ω
      H1-22 (TSW5) - Body ground LG - 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 H1 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
      H1-22 (TSW5) - Body ground LG - Body ground Back door opener switch signal Back door opener switch off 11 to 14 V (Pulse generation)
      H1-22 (TSW5) - Body ground LG - 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 H140 double lock door control relay assembly connector.

      A004YBYE03

    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
      H140-1 (+B) - Body ground B - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      H140-7 (CPUB) - Body ground BR - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      H140-14 (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 H140 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
      H140-5 (DLPD) - Body ground Y - Body ground Front RH double lock position switch input Double lock unset Pulse generation
      H140-5 (DLPD) - Body ground Y - Body ground Front RH double lock position switch input Double lock set Below 1 V
      H140-6 (DLPP) - Body ground V - Body ground Front LH double lock position switch input Double lock unset Pulse generation
      H140-6 (DLPP) - Body ground V - Body ground Front LH double lock position switch input Double lock set Below 1 V
      H140-11 (DLPR) - Body ground B - Body ground Rear RH double lock position switch input Double lock unset Pulse generation
      H140-11 (DLPR) - Body ground B - Body ground Rear RH double lock position switch input Double lock set Below 1 V
      H140-12 (DLPL) - Body ground L - Body ground Rear LH double lock position switch input Double lock unset Pulse generation
      H140-12 (DLPL) - Body ground L - Body ground Rear LH double lock position switch input Double lock set Below 1 V
      H140-3 (ACTS) - Body ground LG - Body ground All door double lock motor set on output Double lock unset Below 1 V
      H140-3 (ACTS) - Body ground LG - Body ground All door double lock motor set on output Double lock set 11 to 14 V
      H140-4 (ACTR) - Body ground GR - Body ground All door double lock motor set off output Double lock set Below 1 V
      H140-4 (ACTR) - Body ground GR - 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.