WIRELESS DOOR LOCK CONTROL SYSTEM(w/ Entry and Start System) TERMINALS OF ECU

  1. CHECK BODY ECU AND DRIVER SIDE JUNCTION BLOCK ASSEMBLY

    B361594C01

    *1

    Driver Side Junction Block Assembly

    -

    -
    B343148C21

    *1

    Body ECU

    -

    -

    1. Remove the body ECU from the driver side junction block assembly.

      Click here

    2. Reconnect the driver side junction block assembly connectors.

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

      Tip:

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

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      MB-1 (GND1) - Body ground

      -

      Ground

      Always

      Below 1 Ω

      MB-6 (BECU) - Body ground

      -

      Battery power supply

      Always

      11 to 14 V

      MB-7 (IG) - Body ground

      -

      IG power supply

      Engine switch on (IG)

      11 to 14 V

      MB-7 (IG) - Body ground

      -

      IG power supply

      Engine switch off

      Below 1 V

    4. Install the body ECU to driver side junction block assembly.

      Click here

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

      Table 1. for LHD

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      3N-1 (ACT-) - Body ground

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob not moved

      Below 1 V

      3N-1 (ACT-) - Body ground

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob moved to unlock position

      11 to 14 V

      3G-3 (ACT-) - Body ground

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob not moved

      Below 1 V

      3G-3 (ACT-) - Body ground

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob moved to unlock position

      11 to 14 V

      3M-4 (ACT-) - Body ground*

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob not moved

      Below 1 V

      3M-4 (ACT-) - Body ground*

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob moved to unlock position

      11 to 14 V

      3M-2 (ACT-) - Body ground*

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob not moved

      Below 1 V

      3M-2 (ACT-) - Body ground*

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob moved to unlock position

      11 to 14 V

      3J-4 (ACT+) - Body ground

      R - Body ground

      Door lock motor lock drive output (all doors)

      Driver door lock knob not moved

      Below 1 V

      3J-4 (ACT+) - Body ground

      R - Body ground

      Door lock motor lock drive output (all doors)

      Driver door lock knob moved to unlock position

      11 to 14 V

      3L-2 (DCTY) - Body ground

      P - Body ground

      Front door courtesy light switch assembly (for LH) input

      Front door LH open

      Below 1 V

      3L-2 (DCTY) - Body ground

      P - Body ground

      Front door courtesy light switch assembly (for LH) input

      Front door LH closed

      Pulse generation

      3L-8 (PCTY) - Body ground

      L - Body ground

      Front door courtesy light switch assembly (for RH) input

      Front door RH open

      Below 1 V

      3L-8 (PCTY) - Body ground

      L - Body ground

      Front door courtesy light switch assembly (for RH) input

      Front door RH closed

      Pulse generation

      3L-3 (PCTY) - Body ground*

      B - Body ground

      Rear door courtesy light switch assembly (for LH) input

      Rear door LH open

      Below 1 V

      3L-3 (PCTY) - Body ground*

      B - Body ground

      Rear door courtesy light switch assembly (for LH) input

      Rear door LH closed

      Pulse generation

      3L-5 (PCTY) - Body ground*

      SB - Body ground

      Rear door courtesy light switch assembly (for RH) input

      Rear door RH open

      Below 1 V

      3L-5 (PCTY) - Body ground*

      SB - Body ground

      Rear door courtesy light switch assembly (for RH) input

      Rear door RH closed

      Pulse generation

      E46-15 (LSWD) - Body ground

      BE - Body ground

      Driver door key-linked lock input or front door LH unlock detection switch input

      Driver door key cylinder turned to lock position or driver door lock knob moved to lock position

      Below 1 V

      E46-15 (LSWD) - Body ground

      BE - Body ground

      Driver door key-linked lock input or front door LH unlock detection switch input

      Driver door key cylinder off or driver door lock knob not moved

      Pulse generation

      E46-11 (UL2) - Body ground

      G - Body ground

      Driver door key-linked unlock input

      Driver door key cylinder turned to unlock position

      Below 1 V

      E46-11 (UL2) - Body ground

      G - Body ground

      Driver door key-linked unlock input

      Driver door key cylinder off

      Pulse generation

      3L-4 (PCTY) - Body ground

      V - Body ground

      Back window courtesy light switch input

      Back window open

      Below 1 V

      3L-4 (PCTY) - Body ground

      V - Body ground

      Back window courtesy light switch input

      Back window closed

      Pulse generation

      E46-6 (HAZ) - Body ground

      G - Body ground

      Hazard warning light signal

      Answer-back function not operating (hazard warning light)

      11 to 14 V

      E46-6 (HAZ) - Body ground

      G - Body ground

      Hazard warning light signal

      Answer-back function operating (hazard warning light)

      Below 1 V

      • *: for 5 Door

      Table 2. for RHD

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      3N-1 (ACT-) - Body ground

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob not moved

      Below 1 V

      3N-1 (ACT-) - Body ground

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob moved to unlock position

      11 to 14 V

      3G-3 (ACT-) - Body ground

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob not moved

      Below 1 V

      3G-3 (ACT-) - Body ground

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob moved to unlock position

      11 to 14 V

      3M-4 (ACT-) - Body ground*

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob not moved

      Below 1 V

      3M-4 (ACT-) - Body ground*

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob moved to unlock position

      11 to 14 V

      3M-2 (ACT-) - Body ground*

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob not moved

      Below 1 V

      3M-2 (ACT-) - Body ground*

      G - Body ground

      Door lock motor unlock drive output (all doors)

      Driver door lock knob moved to unlock position

      11 to 14 V

      3J-4 (ACT+) - Body ground

      R - Body ground

      Door lock motor lock drive output (all doors)

      Driver door lock knob not moved

      Below 1 V

      3J-4 (ACT+) - Body ground

      R - Body ground

      Door lock motor lock drive output (all doors)

      Driver door lock knob moved to unlock position

      11 to 14 V

      3L-2 (DCTY) - Body ground

      L - Body ground

      Front door courtesy light switch assembly (for RH) input

      Front door LH open

      Below 1 V

      3L-2 (DCTY) - Body ground

      L - Body ground

      Front door courtesy light switch assembly (for RH) input

      Front door LH closed

      Pulse generation

      3L-8 (PCTY) - Body ground

      P - Body ground

      Front door courtesy light switch assembly (for LH) input

      Front door RH open

      Below 1 V

      3L-8 (PCTY) - Body ground

      P - Body ground

      Front door courtesy light switch assembly (for LH) input

      Front door RH closed

      Pulse generation

      3L-3 (PCTY) - Body ground*

      B - Body ground

      Rear door courtesy light switch assembly (for LH) input

      Rear door LH open

      Below 1 V

      3L-3 (PCTY) - Body ground*

      B - Body ground

      Rear door courtesy light switch assembly (for LH) input

      Rear door LH closed

      Pulse generation

      3L-5 (PCTY) - Body ground*

      SB - Body ground

      Rear door courtesy light switch assembly (for RH) input

      Rear door RH open

      Below 1 V

      3L-5 (PCTY) - Body ground*

      SB - Body ground

      Rear door courtesy light switch assembly (for RH) input

      Rear door RH closed

      Pulse generation

      E46-15 (LSWD) - Body ground

      BE - Body ground

      Driver door key-linked lock input or front door RH unlock detection switch input

      Driver door key cylinder turned to lock position or driver door lock knob moved to lock position

      Below 1 V

      E46-15 (LSWD) - Body ground

      BE - Body ground

      Driver door key-linked lock input or front door RH unlock detection switch input

      Driver door key cylinder off or driver door lock knob not moved

      Pulse generation

      E46-11 (UL2) - Body ground

      G - Body ground

      Driver door key-linked unlock input

      Driver door key cylinder turned to unlock position

      Below 1 V

      E46-11 (UL2) - Body ground

      G - Body ground

      Driver door key-linked unlock input

      Driver door key cylinder off

      Pulse generation

      3L-4 (PCTY) - Body ground

      V - Body ground

      Back window courtesy light switch input

      Back window open

      Below 1 V

      3L-4 (PCTY) - Body ground

      V - Body ground

      Back window courtesy light switch input

      Back window closed

      Pulse generation

      E46-6 (HAZ) - Body ground

      G - Body ground

      Hazard warning light signal

      Answer-back function not operating (hazard warning light)

      11 to 14 V

      E46-6 (HAZ) - Body ground

      G - Body ground

      Hazard warning light signal

      Answer-back function operating (hazard warning light)

      Below 1 V

  2. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    B367011N08

    1. Disconnect the E49 certification ECU (smart key ECU assembly) connector.

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

      Tip:

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

      Terminal No. (Symbol)

      Wiring Color

      Terminal Description

      Condition

      Specified Condition

      E49-10 (E) - Body ground

      BR - Body ground

      Ground

      Always

      Below 1 Ω

      E49-1 (+B) - Body ground

      B - Body ground

      Battery power supply

      Always

      11 to 14 V

    3. Reconnect the E49 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

      E50-13 (RDA3) - E49-10 (E)

      B - BR

      Signal output to body ECU

      Procedure:

      1. Engine switch off

      2. All doors closed

      3. 10 seconds elapsed after all doors locked

      4. Electrical key transmitter sub-assembly unlock switch not pressed

      11 to 14 V

      Procedure:

      1. Engine switch off

      2. All doors closed

      3. 10 seconds elapsed after all doors locked

      4. Electrical key transmitter sub-assembly unlock switch pressed

      Pulse generation

      E50-36 (PRG3) - E49-10 (E)

      L - BR

      Signal input from body ECU

      Procedure:

      1. Engine switch off

      2. All doors closed

      3. 10 seconds elapsed after all doors locked

      4. Electrical key transmitter sub-assembly unlock switch not pressed

      11 to 14 V

      Procedure:

      1. Engine switch off

      2. All doors closed

      3. 10 seconds elapsed after all doors locked

      4. Electrical key transmitter sub-assembly unlock switch pressed

      Pulse generation

      E49-9 (LSWP) - E49-10 (E)

      LG - BR

      Except driver door unlock detection switch input

      Procedure:

      1. Engine switch off

      2. All doors closed

      3. All doors unlocked

      4. Lock button of electrical key transmitter sub-assembly not pressed

      Below 1 V

      Procedure:

      1. Engine switch off

      2. All doors closed

      3. All doors unlocked

      4. Lock button of electrical key transmitter sub-assembly pressed

      8.5 V or higher

      E49-2 (BZR) - E49-10 (E)

      R - BR

      Wireless door lock buzzer signal

      Wireless door lock buzzer off

      Below 1 V

      Wireless door lock buzzer on

      Pulse generation