WIRELESS DOOR LOCK CONTROL SYSTEM TERMINALS OF ECU


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


    1. Disconnect the 2F, 2D and 7A junction block connectors.

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    2. Disconnect the F14 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
      2F-40 (BECU) - Body ground G - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      7A-31 (ALTB) - Body ground - Auxiliary battery power supply Power switch off 11 to 14 V
      7A-32 (IG) - Body ground - Power switch power supply Power switch on (IG) 11 to 14 V
      7A-32 (IG) - Body ground - Power switch power supply Power switch off Below 1 V
      7A-29 (ACC) - Body ground - ACC power supply Power switch on (ACC) 11 to 14 V
      7A-29 (ACC) - Body ground - ACC power supply Power switch off Below 1 V
      F14-3 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      2D-6 (GND1) - Body ground BR - Body ground Ground Always Below 1 Ω

      If the result is not as specified, there may be a malfunction in the wire harness or instrument panel junction block assembly.

    4. Reconnect the 2F, 2D and 7A junction block connectors.

    5. Reconnect the F14 main body ECU (multiplex network body ECU) connector.

    6. Measure the voltage according to the value(s) in the table below.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      2H-26 (FLCY) - Body ground B - Body ground Driver side door courtesy switch input Driver side door open Below 1 V
      2H-26 (FLCY) - Body ground B - Body ground Driver side door courtesy switch input Driver side door closed 11 to 14 V
      2D-26 (FRCY) - Body ground L - Body ground Front passenger side door courtesy switch input Front passenger side door open Below 1 V
      2D-26 (FRCY) - Body ground L - Body ground Front passenger side door courtesy switch input Front passenger side door closed 11 to 14 V
      F12-3 (LCTY) - Body ground L - Body ground Rear door LH courtesy light switch input Rear door LH open Below 1 V
      F12-3 (LCTY) - Body ground L - Body ground Rear door LH courtesy light switch input Rear door LH closed 11 to 14 V
      F13-6 (RCTY) - Body ground GR - Body ground Rear door RH courtesy light switch input Rear door RH open Below 1 V
      F13-6 (RCTY) - Body ground GR- Body ground Rear door RH courtesy light switch input Rear door RH closed 11 to 14 V
      F13-19 (BCTY) - Body ground* R - Body ground Back door courtesy light switch input Back door open Below 1 V
      F13-19 (BCTY) - Body ground* R - Body ground Back door courtesy light switch input Back door closed 11 to 14 V
      F13-11 (L2) - Body ground BR - Body ground Driver side door key-linked lock input Driver side door key cylinder turned to lock Below 1 V
      F13-11 (L2) - Body ground BR - Body ground Driver side door key-linked lock input Driver side door key cylinder off 11 to 14 V
      F13-24 (UL3) - Body ground GR - Body ground Driver side door key-linked unlock input Driver side door key cylinder turned to unlock Below 1 V
      F13-24 (UL3) - Body ground GR - Body ground Driver side door key-linked unlock input Driver side door key cylinder off 11 to 14 V
      F13-9 (L1) - Body ground LG - Body ground Front passenger side door control switch input Front passenger side door control switch lock Below 1 V
      F13-9 (L1) - Body ground LG - Body ground Front passenger side door control switch input Front passenger side door control switch off

      11 to 14 V

      (Pulse generation)
      F13-10 (UL1) - Body ground L - Body ground Front passenger side door control switch input Front passenger side door control switch unlock Below 1 V
      F13-10 (UL1) - Body ground L - Body ground Front passenger side door control switch input Front passenger side door control switch off

      11 to 14 V

      (Pulse generation)
      2D-3 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (all doors) Multiplex network master switch (door control switch) or driver side door key cylinder off Below 1 V
      2D-3 (ACT+) - Body ground L - Body ground Door lock motor lock drive output (all doors) Multiplex network master switch (door control switch) or driver side door key cylinder lock 11 to 14 V
      2D-7 (ACTD) - Body ground R - Body ground Driver side door lock motor unlock drive output Multiplex network master switch (door control switch) or driver side door key cylinder off Below 1 V
      2D-7 (ACTD) - Body ground R - Body ground Driver side door lock motor unlock drive output Multiplex network master switch (door control switch) or driver side door key cylinder unlock 11 to 14 V
      2D-1 (ACT-) - Body ground R - Body ground Door lock motor unlock drive output (except driver side) Multiplex network master switch (door control switch) or driver side door key cylinder off Below 1 V
      2D-1 (ACT-) - Body ground R - Body ground Door lock motor unlock drive output (except driver side) Multiplex network master switch (door control switch) or driver side door key cylinder unlock 11 to 14 V
      F13-18 (LSFR) - Body ground SB - Body ground Front passenger side door lock position switch input Front passenger side door unlock Below 1 V
      F13-18 (LSFR) - Body ground SB - Body ground Front passenger side door lock position switch input Power switch off, all doors closed and front passenger side door lock 11 to 14 V
      2H-27 (LSWL) - Body ground Y - Body ground Rear door LH lock position switch input Rear door LH unlock Below 1 V
      2H-27 (LSWL) - Body ground Y - Body ground Rear door LH lock position switch input Power switch off, all doors closed and rear door LH lock

      11 to 14 V

      (Pulse generation)
      F14-2 (LSWR) - Body ground B - Body ground Rear door RH lock position switch input Rear door RH unlock Below 1 V
      F14-2 (LSWR) - Body ground B - Body ground Rear door RH lock position switch input Power switch off, all doors closed and rear door RH lock 11 to 14 V
      F13-7 (LSFL) - Body ground P - Body ground Driver side door lock position switch input Driver side door unlock

      Below 1 V

      (Pulse generation)
      F13-7 (LSFL) - Body ground P - Body ground Driver side door lock position switch input Power switch off, all doors closed and driver side door lock 11 to 14 V
      2F-25 (BZR) - Body ground W - Body ground Wireless door lock buzzer signal Wireless door lock buzzer off Below 1 V
      2F-25 (BZR) - Body ground W - Body ground Wireless door lock buzzer signal Wireless door lock buzzer on Pulse generation
      F13-3 (HAZ) - Body ground BR - Body ground Turn signal flasher relay signal Any transmitter switch not pressed 11 to 14 V
      F13-3 (HAZ) - Body ground BR - Body ground Turn signal flasher relay signal Any transmitter switch pressed Below 1 V

      • *: w/o Power Back Door System

      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)

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    1. Disconnect the F58 and O1 certification ECU (smart key ECU assembly) connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F58-15 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      F58-1 (+B) - F58-15 (E) LG - W-B Auxiliary battery power supply Power switch off 11 to 14 V

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

    3. Reconnect the F58 and O1 certification ECU (smart key ECU assembly) connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      F58-16 (IG) - F58-15 (E) B - W-B IG power supply Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      O1-16 (RSSI) - F58-15 (E) R - W-B Door control receiver output signal Power switch off, all doors closed and transmitter switch not pressed 11 to 14 V
      Power switch off, all doors closed and transmitter switch pressed Below 2 V
      O1-15 (RDA) - F58-15 (E) Y - W-B Door control receiver output signal Power switch off Pulse between 11 to 14 V occurs regularly
      O1-5 (RCO) - F58-15 (E) L - W-B Supply battery to door control receiver Power switch off, all doors closed and transmitter switch pressed 4.5 to 5.5 V

      • If the result is not as specified, the certification ECU (smart key ECU assembly) may have a malfunction.

  3. CHECK POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT) (w/ POWER BACK DOOR SYSTEM)

    A01NHK5E17

    1. Disconnect the P33 power back door ECU 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.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      P33-12 (B) - Body ground Y - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      P33-10 (ECUB) - Body ground BR - Body ground Auxiliary battery power supply Power switch off 11 to 14 V
      P33-8 (IG) - Body ground SB - Body ground IG power supply Power switch on (IG) 11 to 14 V
      P33-8 (IG) - Body ground SB - Body ground IG power supply Power switch off Below 1 V
      P33-11 (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 P33 power back door ECU connector.

    4. Initialize the power back door ECU (power back door motor unit) Click here.

    5. Measure the voltage according to the value(s) in the table below.

      Tester Connection Wiring Color Terminal Description Condition Specified Condition
      P33-20 (FUL) - Body ground P - Body ground Back door courtesy switch circuit Back door closed 11 to 14 V
      P33-20 (FUL) - Body ground P - Body ground Back door courtesy switch circuit Back door open Below 1 V

      If the result is not as specified, the power back door ECU (power back door motor unit) may have a malfunction.