POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


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

    B00403HC05
    *A Main Body ECU (Multiplex Network Body ECU) with 2 Connectors - -
    *1 Main Body ECU (Multiplex Network Body ECU) - -
    *a 2 connectors - -
    A0028JSC05
    *A Main Body ECU (Multiplex Network Body ECU) with 3 Connectors - -
    *1 Main Body ECU (Multiplex Network Body ECU) - -
    *a 3 connectors - -

    1. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

      Click here

    2. Reconnect the instrument panel junction block assembly connectors.

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

      Tech Tips

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

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

    4. Install the main body ECU (multiplex network body ECU) to instrument panel junction block assembly.

      Click here

    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
      4H-10 (ACT-) - Body ground LA-P - Body ground Door lock motor unlock drive output (all doors) Door control switch or driver door key cylinder off Below 1 V
      4H-10 (ACT-) - Body ground LA-P - Body ground Door lock motor unlock drive output (all doors) Door control switch or driver door key cylinder unlocked 11 to 14 V
      4D-3 (ACT-) - Body ground G - Body ground Door lock motor unlock drive output (all doors) Door control switch or driver door key cylinder off Below 1 V
      4D-3 (ACT-) - Body ground G - Body ground Door lock motor unlock drive output (all doors) Door control switch or driver door key cylinder unlocked 11 to 14 V
      4H-12 (ACT+) - Body ground LA-L - Body ground Door lock motor lock drive output (except driver door) Door control switch or driver door key cylinder off Below 1 V
      4H-12 (ACT+) - Body ground LA-L - Body ground Door lock motor lock drive output (except driver door) Door control switch or driver door key cylinder locked 11 to 14 V
      4D-1 (ACT+) - Body ground LA-R - Body ground Door lock motor lock drive output (except driver door) Door control switch or driver door key cylinder off Below 1 V
      4D-1 (ACT+) - Body ground LA-R - Body ground Door lock motor lock drive output (except driver door) Door control switch or driver door key cylinder locked 11 to 14 V
      4D-2 (ACTD) - Body ground

      BE - Body ground*3

      B - Body ground*4

      		 Door lock motor lock drive output (for driver door) Door control switch or driver door key cylinder off Below 1 V
      4D-2 (ACTD) - Body ground

      BE - Body ground*3

      B - Body ground*4

      		 Door lock motor lock drive output (for driver door) Door control switch or driver door key cylinder locked 11 to 14 V
      F19-27 (FRCY) - Body ground L - Body ground Front door courtesy light switch assembly (for RH) input Front door RH open Below 1 V
      F19-27 (FRCY) - Body ground L - Body ground Front door courtesy light switch assembly (for RH) input Front door RH closed 11 to 14 V or Pulse generation
      F19-6 (FLCY) - Body ground GR - Body ground Front door courtesy light switch assembly (for LH) input Front door LH open Below 1 V
      F19-6 (FLCY) - Body ground GR - Body ground Front door courtesy light switch assembly (for LH) input Front door LH closed 11 to 14 V or Pulse generation
      4H-36 (LCTY) - Body ground SB - Body ground Rear door courtesy light switch assembly (for LH) input Rear door LH open Below 1 V
      4H-36 (LCTY) - Body ground SB - Body ground Rear door courtesy light switch assembly (for LH) input Rear door LH closed 11 to 14 V or Pulse generation
      4D-30 (RCTY) - Body ground LG - Body ground Rear door courtesy light switch assembly (for RH) input Rear door RH open Below 1 V
      4D-30 (RCTY) - Body ground LG - Body ground Rear door courtesy light switch assembly (for RH) input Rear door RH closed 11 to 14 V or Pulse generation
      F19-29 (L2) - Body ground V - Body ground Driver door key-linked lock input Driver door key cylinder turned to lock position Below 1 V
      F19-29 (L2) - Body ground V - Body ground Driver door key-linked lock input Driver door key cylinder off 11 to 14 V or Pulse generation
      F19-2 (UL3) - Body ground SB - Body ground Driver door key-linked unlock input Driver door key cylinder turned to unlock position Below 1 V
      F19-2 (UL3) - Body ground SB - Body ground Driver door key-linked unlock input Driver door key cylinder off 11 to 14 V or Pulse generation
      4D-10 (LSFL) - Body ground GR - Body ground Front door LH unlock detection switch input Front door LH unlocked Below 1 V
      4D-10 (LSFL) - Body ground GR - Body ground Front door LH unlock detection switch input Front door LH locked 11 to 14 V or Pulse generation
      4D-26 (LSFR) - Body ground Y - Body ground Front door RH unlock detection switch input Front door RH unlocked Below 1 V
      4D-26 (LSFR) - Body ground Y - Body ground Front door RH unlock detection switch input Front door RH locked 11 to 14 V or Pulse generation
      F18-2 (LSWR) - Body ground LG - Body ground Rear door RH unlock detection switch input Rear door RH unlocked Below 1 V
      F18-2 (LSWR) - Body ground LG - Body ground Rear door RH unlock detection switch input Rear door RH locked 11 to 14 V or Pulse generation
      4H-34 (LSWL) - Body ground V - Body ground Rear door LH unlock detection switch input Rear door LH unlocked Below 1 V
      4H-34 (LSWL) - Body ground V - Body ground Rear door LH unlock detection switch input Rear door LH locked 11 to 14 V or Pulse generation
      4H-33 (BCTY) - Body ground LA-Y - Body ground Back door courtesy light switch input Back door open Below 1 V
      4H-33 (BCTY) - Body ground LA-Y - Body ground Back door courtesy light switch input Back door closed 11 to 14 V or Pulse generation
      4H-4 (TR+) - Body ground*7 LA-SB - Body ground Back door lock motor unlock drive output Back door opener switch pushed 11 to 14 V
      4H-4 (TR+) - Body ground*7 LA-SB - Body ground Back door lock motor unlock drive output Back door opener switch not pushed Below 1 V
      F19-18 (BDSU) - Body ground*1 R - Body ground Back door opener switch input Back door opener switch (open switch) pushed Below 1 V
      F19-18 (BDSU) - Body ground*1 R - Body ground Back door opener switch input Back door opener switch (open switch) not pushed 11 to 14 V or Pulse generation
      4D-28 (KSW) - Body ground*1 GR - Body ground Key unlock warning switch input No key in ignition key cylinder 11 to 14 V or Pulse generation
      4D-28 (KSW) - Body ground*1 GR - Body ground Key unlock warning switch input Key in ignition key cylinder Below 1 V
      4A-24 (GSW) - Body ground*2 B - Body ground Airbag sensor signal (collision detection signal) Ignition switch ON with airbag sensor assembly connector disconnected 4.3 to 5.5 V
      F18-3 (ACTG) - Body ground*2 L - Body ground Collision door lock release signal Collision door lock release function does not operate

      Below 2 V*5

      7.3 to 9.9 V*6
      F18-3 (ACTG) - Body ground*2 L - Body ground Collision door lock release signal Collision door lock release function operates Below 1 V

      • *1: w/o Smart Entry and Start System

      • *2: w/ Collision Door Lock Release Function

      • *3: for LHD

      • *4: for RHD

      • *5: Door control battery not Charged

      • *6: Door control battery charging or charged

      • *7: w/o Power Back Door System

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Smart Entry and Start System)

    B003ZN2N17

    1. Disconnect the F13 certification ECU (smart key ECU assembly) connector.

    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.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F13-11 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      F13-10 (+B) - Body ground GR - Body ground +B power supply Always 11 to 14 V

    3. Reconnect the F13 certification ECU (smart key ECU 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
      F12-5 (TSW5) - Body ground R - Body ground Back door opener switch signal Back door opener switch off Pulse generation
      F12-5 (TSW5) - Body ground R - Body ground Back door opener switch signal Back door opener switch on Below 1 V