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POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU

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


    1. B003YD6C23
      *A Main Body ECU (Multiplex Network Body ECU) with 3 Connectors - -
      *1 Main Body ECU (Multiplex Network Body ECU) - -
      *a 3 Connectors - -

      Disconnect the MB main body ECU (multiplex network body ECU) connector.

    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 connectors disconnected.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      MB-11 (GND1) - Body ground - Ground Always Below 1 Ω
      MB-31 (BECU) - Body ground - Auxiliary battery power supply Power switch off 11 to 14 V
      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-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

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

    3. Reconnect the MB main body ECU (multiplex network body ECU) connector.

    4. 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

      4B-3 (ACT-) - Body ground*1

      4B-2 (ACT-) - Body ground*2

      		 L - Body ground Door lock motor unlock drive output (except driver door) Door control switch (multiplex network master switch assembly) or driver door key cylinder off Below 1 V

      4B-3 (ACT-) - Body ground*1

      4B-2 (ACT-) - Body ground*2

      		 L - Body ground Door lock motor unlock drive output (except driver door) Door control switch (multiplex network master switch assembly) or driver door key cylinder unlocked 11 to 14 V
      4D-10 (ACT-) - Body ground P - Body ground Door lock motor unlock drive output (except driver door) Door control switch (multiplex network master switch assembly) or driver door key cylinder off Below 1 V
      4D-10 (ACT-) - Body ground P - Body ground Door lock motor unlock drive output (except driver door) Door control switch (multiplex network master switch assembly) or driver door key cylinder unlocked 11 to 14 V
      4B-4 (ACT-) - Body ground V - Body ground Door lock motor unlock drive output (except driver door) Door control switch (multiplex network master switch assembly) or driver door key cylinder off Below 1 V
      4B-4 (ACT-) - Body ground V - Body ground Door lock motor unlock drive output (except driver door) Door control switch (multiplex network master switch assembly) or driver door key cylinder unlocked 11 to 14 V

      4B-2 (ACTD) - Body ground*1

      4B-3 (ACTD) - Body ground*2

      		 L - Body ground Door lock motor unlock drive output (for driver door) Door control switch (multiplex network master switch assembly) or driver door key cylinder off Below 1 V

      4B-2 (ACTD) - Body ground*1

      4B-3 (ACTD) - Body ground*2

      		 L - Body ground Door lock motor unlock drive output (for driver door) Door control switch (multiplex network master switch assembly) or driver door key cylinder unlocked 11 to 14 V
      4D-7 (ACT+) - Body ground R - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch assembly) or driver door key cylinder off Below 1 V
      4D-7 (ACT+) - Body ground R - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch assembly) or driver door key cylinder locked 11 to 14 V
      4D-8 (ACT+) - Body ground SB - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch assembly) or driver door key cylinder off Below 1 V
      4D-8 (ACT+) - Body ground SB - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch assembly) or driver door key cylinder locked 11 to 14 V
      4B-5 (ACT+) - Body ground GR - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch assembly) or driver door key cylinder off Below 1 V
      4B-5 (ACT+) - Body ground GR - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch assembly) or driver door key cylinder locked 11 to 14 V
      4B-6 (ACT+) - Body ground R - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch assembly) or driver door key cylinder off Below 1 V
      4B-6 (ACT+) - Body ground R - Body ground Door lock motor lock drive output (all doors) Door control switch (multiplex network master switch assembly) or driver door key cylinder locked 11 to 14 V
      K2-27 (FRCY) - Body ground V - Body ground Front door courtesy light switch RH input Front door RH open Below 1 V
      K2-27 (FRCY) - Body ground V - Body ground Front door courtesy light switch RH input Front door RH closed 11 to 14 V
      K2-6 (FLCY) - Body ground V - Body ground Front door courtesy light switch LH input Front door LH open Below 1 V
      K2-6 (FLCY) - Body ground V - Body ground Front door courtesy light switch LH input Front door LH closed 11 to 14 V
      4D-25 (LCTY) - Body ground BE - Body ground Rear door courtesy light switch LH input Rear door LH open Below 1 V
      4D-25 (LCTY) - Body ground BE - Body ground Rear door courtesy light switch LH input Rear door LH closed Pulse generation
      4B-17 (RCTY) - Body ground BE - Body ground Rear door courtesy light switch RH input Rear door RH open Below 1 V
      4B-17 (RCTY) - Body ground BE - Body ground Rear door courtesy light switch RH input Rear door RH closed Pulse generation
      4B-25 (L1) - Body ground

      G - Body ground*1

      L - Body ground*2

      		 Door control switch input Door control switch locked Below 1 V
      4B-25 (L1) - Body ground

      G - Body ground*1

      L - Body ground*2

      		 Door control switch input Door control switch off Pulse generation
      4B-24 (UL1) - Body ground

      Y - Body ground*1

      LG - Body ground*2

      		 Door control switch input Door control switch unlocked Below 1 V
      4B-24 (UL1) - Body ground

      Y - Body ground*1

      LG - Body ground*2

      		 Door control switch input Door control switch off Pulse generation
      K2-29 (L2) - Body ground

      L - Body ground*1

      G - Body ground*2

      		 Driver door key-linked lock input Driver door key cylinder turned to lock position Below 1 V
      K2-29 (L2) - Body ground

      L - Body ground*1

      G - Body ground*2

      		 Driver door key-linked lock input Driver door key cylinder off Pulse generation
      K2-2 (UL3) - Body ground

      LG - Body ground*1

      Y - Body ground*2

      		 Driver door key-linked unlock input Driver door key cylinder turned to unlock position Below 1 V
      K2-2 (UL3) - Body ground

      LG - Body ground*1

      Y - Body ground*2

      		 Driver door key-linked unlock input Driver door key cylinder off Pulse generation
      4B-26 (LSFL) - Body ground G - Body ground Front door LH unlock detection switch input Front door LH unlocked Below 1 V
      4B-26 (LSFL) - Body ground G - Body ground Front door LH unlock detection switch input Front door LH locked Pulse generation
      4B-27 (LSFR) - Body ground B - Body ground Front door RH unlock detection switch input Front door RH unlocked Below 1 V
      4B-27 (LSFR) - Body ground B - Body ground Front door RH unlock detection switch input Front door RH locked Pulse generation
      K1-2 (LSWR) - Body ground W - Body ground Rear door RH unlock detection switch input Rear door RH unlocked Below 1 V
      K1-2 (LSWR) - Body ground W - Body ground Rear door RH unlock detection switch input Rear door RH locked Pulse generation
      4B-23 (LSWL) - Body ground L - Body ground Rear door LH unlock detection switch input Rear door LH unlocked Below 1 V
      4B-23 (LSWL) - Body ground L - Body ground Rear door LH unlock detection switch input Rear door LH locked Pulse generation
      4D-16 (LGCY) - Body ground G - Body ground Luggage door courtesy light switch input Luggage compartment door open Below 1 V
      4D-16 (LGCY) - Body ground G - Body ground Luggage door courtesy light switch input Luggage compartment door closed 11 to 14 V
      4D-1 (TR+) - Body ground B - Body ground Luggage compartment door lock motor unlock drive output Luggage compartment door opener switch (open switch) pushed 11 to 14 V
      4D-1 (TR+) - Body ground B - Body ground Luggage compartment door lock motor unlock drive output Luggage compartment door opener switch (open switch) not pushed Below 1 V

      • *1: for LHD

      • *2: for RHD

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

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


    1. A01MTPBN04

      Disconnect the K42 double lock door control relay assembly connector.

    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
      K42-1 (+B) - Body ground W - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      K42-7 (CPUB) - Body ground LG - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      K42-14 (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 K42 double lock door control relay assembly connector.

    4. 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
      K42-5 (DLPD) - Body ground G - Body ground Front RH double lock position switch input Double lock unset Pulse generation
      K42-5 (DLPD) - Body ground G - Body ground Front RH double lock position switch input Double lock set Below 1 V
      K42-6 (DLPP) - Body ground GR - Body ground Front LH double lock position switch input Double lock unset Pulse generation
      K42-6 (DLPP) - Body ground GR - Body ground Front LH double lock position switch input Double lock set Below 1 V
      K42-11 (DLPR) - Body ground BE - Body ground Rear RH double lock position switch input Double lock unset Pulse generation
      K42-11 (DLPR) - Body ground BE - Body ground Rear RH double lock position switch input Double lock set Below 1 V
      K42-12 (DLPL) - Body ground L - Body ground Rear LH double lock position switch input Double lock unset Pulse generation
      K42-12 (DLPL) - Body ground L - Body ground Rear LH double lock position switch input Double lock set Below 1 V
      K42-3 (ACTS) - Body ground V - Body ground All door double lock motor set on output Double lock unset Below 1 V
      K42-3 (ACTS) - Body ground V - Body ground All door double lock motor set on output Double lock set 11 to 14 V
      K42-4 (ACTR) - Body ground P - Body ground All door double lock motor set off output Double lock set Below 1 V
      K42-4 (ACTR) - Body ground P - 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 be malfunctioning.