POWER DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


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

    B006MFRC01
    *1 Junction Block Assembly LH - -
    B006Q2ZC04
    *1 Main Body ECU (Multiplex Network Body ECU) - -

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

      Click here

    2. Reconnect the junction block assembly LH 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-31 (BECU) - Body ground - Battery power supply Always 11 to 14 V
      MB-11 (GND1) - Body ground - Ground Always Below 1 Ω
      MB-32 (IG) - Body ground - IG power supply Engine switch on (IG) 11 to 14 V
      Engine switch off Below 1 V
      MB-30 (ACC) - Body ground - ACC power supply Engine switch on (ACC) 11 to 14 V
      Engine switch off Below 1 V
      G63-27 (FRCY) - Body ground L - Body ground Front door courtesy light switch assembly RH input Front door RH closed 10 kΩ or higher
      Front door RH open Below 1 Ω
      G63-6 (FLCY) - Body ground GR - Body ground Front door courtesy light switch assembly LH input Front door LH closed 10 kΩ or higher
      Front door LH open Below 1 Ω
      MB-2 (RCTY) - Body ground - Rear door courtesy light switch assembly RH input Slide door RH closed 10 kΩ or higher
      Slide door RH open Below 1 Ω
      MB-13 (LCTY) - Body ground - Rear door courtesy light switch assembly LH input Slide door LH closed 10 kΩ or higher
      Slide door LH open Below 1 Ω
      MB-4 (BCTY) - Body ground - Back door courtesy light switch input Back door closed 10 kΩ or higher
      Back door open Below 1 Ω

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

      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-12 (ACT-) - Body ground R - Body ground Door lock motor unlock drive output (all doors) Door control switch or driver door key cylinder off Below 1 V
      4H-12 (ACT-) - Body ground R - Body ground Door lock motor unlock drive output (all doors) Door control switch or driver door key cylinder unlocked 11 to 14 V
      4D-4 (ACT-) - Body ground R - Body ground Door lock motor unlock drive output (all doors) Door control switch or driver door key cylinder off Below 1 V
      4D-4 (ACT-) - Body ground R - Body ground Door lock motor unlock drive output (all doors) Door control switch or driver door key cylinder unlocked 11 to 14 V
      4H-7 (ACT+) - Body ground 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-7 (ACT+) - Body ground 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-5 (ACT+) - Body ground W - Body ground Door lock motor lock drive output (except driver door) Door control switch or driver door key cylinder off Below 1 V
      4D-5 (ACT+) - Body ground W - Body ground Door lock motor lock drive output (except driver door) Door control switch or driver door key cylinder locked 11 to 14 V
      G63-27 (FRCY) - Body ground L - Body ground Front door courtesy light switch assembly (for RH) input Front door RH open Below 1 V
      G63-27 (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
      G63-6 (FLCY) - Body ground GR - Body ground Front door courtesy light switch assembly LH input Front door LH open Below 1 V
      G63-6 (FLCY) - Body ground GR - Body ground Front door courtesy light switch assembly LH input Front door LH closed 11 to 14 V or Pulse generation
      4H-23 (LCTY) - Body ground L - Body ground Rear door courtesy light switch assembly LH input Slide door LH open Below 1 V
      4H-23 (LCTY) - Body ground L - Body ground Rear door courtesy light switch assembly LH input Slide door LH closed 11 to 14 V or Pulse generation
      4D-18 (RCTY) - Body ground LG - Body ground Rear door courtesy light switch assembly RH input Slide door RH open Below 1 V
      4D-18 (RCTY) - Body ground LG - Body ground Rear door courtesy light switch assembly RH input Slide door RH closed 11 to 14 V or Pulse generation
      G63-29 (L2) - Body ground V - Body ground Driver door key-linked lock input Driver door key cylinder turned to lock position Below 1 V
      G63-29 (L2) - Body ground V - Body ground Driver door key-linked lock input Driver door key cylinder off 11 to 14 V or Pulse generation
      G63-2 (UL3) - Body ground W - Body ground Driver door key-linked unlock input Driver door key cylinder turned to unlock position Below 1 V
      G63-2 (UL3) - Body ground W - Body ground Driver door key-linked unlock input Driver door key cylinder off 11 to 14 V or Pulse generation
      4H-22 (LSFL) - Body ground SB - Body ground Front door LH unlock detection switch input Front door LH unlocked Below 1 V
      4H-22 (LSFL) - Body ground SB - Body ground Front door LH unlock detection switch input Front door LH locked 11 to 14 V or Pulse generation
      4A-38 (LSFR) - Body ground Y - Body ground Front door RH unlock detection switch input Front door RH unlocked Below 1 V
      4A-38 (LSFR) - Body ground Y - Body ground Front door RH unlock detection switch input Front door RH locked 11 to 14 V or Pulse generation
      G62-2 (LSWR) - Body ground V - Body ground Slide door RH unlock detection switch input Slide door RH unlocked Below 1 V
      G62-2 (LSWR) - Body ground V - Body ground Slide door RH unlock detection switch input Slide door RH locked 11 to 14 V or Pulse generation
      4H-35 (LSWL) - Body ground SB - Body ground Slide door LH unlock detection switch input Slide door LH unlocked Below 1 V
      4H-35 (LSWL) - Body ground SB - Body ground Slide door LH unlock detection switch input Slide door LH locked 11 to 14 V or Pulse generation
      4H-36 (BCTY) - Body ground L - Body ground Back door courtesy light switch input Back door open Below 1 V
      4H-36 (BCTY) - Body ground L - Body ground Back door courtesy light switch input Back door closed 11 to 14 V or Pulse generation
      4A-45 (GSW) - Body ground B - Body ground Airbag ECU signal (collision detection signal) Engine switch on (IG) with airbag ECU assembly connector disconnected 4.3 to 5.5 V
      G62-21 (ACTG) - Body ground L - Body ground Collision door lock release signal Collision door lock release function does not operate

      Below 2 V*1

      7.3 to 9.9 V*2
      G62-21 (ACTG) - Body ground L - Body ground Collision door lock release signal Collision door lock release function operates Below 1 V

      • *1: Door control battery not Charged

      • *2: Door control battery charging or charged

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    B006OMYE18

    1. Disconnect the G22 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
      G22-11 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G22-10 (+B) - G22-11 (E) GR - W-B +B power supply Always 11 to 14 V

    3. Reconnect the G22 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
      G21-5 (TSW5) - G22-11 (E) G - W-B Back door opener switch assembly (open switch) signal Back door opener switch assembly (open switch) off Pulse generation
      Back door opener switch assembly (open switch) on Below 1 V
      G21-13 (TSW6) - G22-11 (E) BE - W-B Back door opener switch assembly (lock switch) signal Back door opener switch assembly (lock switch) off Pulse generation
      Back door opener switch assembly (lock switch) on Below 1 V