POWER TRUNK LID SYSTEM TERMINALS OF ECU


  1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)

    A01GZ5CE01

    1. Disconnect the DA, DF, L11, L12 and L13 ECU connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      L11-1 (GND3) - DA-41 (GND1) W-B - W-B Ground Always Below 1 Ω
      DA-40 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      DA-40 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      DF-1 (ALTB) - Body ground B - Body ground ECU power supply Always 11 to 14 V
      L12-1 (AM2) - Body ground W - Body ground Auxiliary battery power supply Always 11 to 14 V
      L13-6 (AM1) - Body ground W - Body ground Auxiliary battery power supply Always 11 to 14 V

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

    3. Reconnect the DA, DF, L11, L12 and L13 ECU connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      L11-3 (TMSW) - Body ground W - Body ground Luggage compartment door opening cancel switch signal Luggage compartment door opening cancel switch is ON Below 1 V
      Power switch off, all doors closed and luggage door opening cancel switch is OFF Pulse generation (see waveform 1 or 2)
      L13-26 (TSW) - Body ground L - Body ground Luggage compartment door opening switch signal Luggage door opening switch is ON Below 1 V
      Power switch off, all doors closed and luggage door opening switch is OFF Pulse generation (see waveform 3 or 4)
    5. A01GWS5E01

      Using an oscilloscope, check waveform 1.

      Waveform 1 (Reference):
      Item Content
      Terminal No. (Symbols) L11-3 (TMSW) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and luggage compartment door opening cancel switch is OFF
    6. A01H1U2E01

      Using an oscilloscope, check waveform 2.

      Waveform 2 (Reference):
      Item Content
      Terminal No. (Symbols) L11-3 (TMSW) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and luggage compartment door opening cancel switch is OFF
    7. A01GWUXE01

      Using an oscilloscope, check waveform 3.

      Waveform 3 (Reference):
      Item Content
      Terminal No. (Symbols) L13-26 (TSW) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and luggage door opening switch is OFF
    8. A01H1UZE01

      Using an oscilloscope, check waveform 4.

      Waveform 4 (Reference):
      Item Content
      Terminal No. (Symbols) L13-26 (TSW) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and luggage door opening switch is OFF

  2. CHECK LUGGAGE ROOM JUNCTION BLOCK (REAR JUNCTION BLOCK ECU)

    A01GZ5CE02

    1. Disconnect the LA, LG and LD junction block connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      LA-29 (SG) - Body ground W-B - Body ground Ground Always Below 1 Ω
      LA-43 (PGND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      LD-4 (MPXB) - LA-29 (SG) R - W-B ECU power supply Always 11 to 14 V
      LG-1 (FUEL) - LA-29 (SG) W - W-B Auxiliary battery power supply Always 11 to 14 V

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

    3. Reconnect the LA, LD and LG junction block connectors.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      S63-10 (TKUL) - LA-29 (SG) V - W-B Luggage compartment door key cylinder switch signal Luggage compartment door key cylinder switch is turned to open position Below 1 V
      Power switch off, all doors closed and luggage compartment door key cylinder switch not turned Pulse generation (see waveform 1 or 2)
    5. A01GZ9TE01

      Using an oscilloscope, check waveform 1.

      Waveform 1 (Reference):
      Item Content
      Terminal No. (Symbols) S63-10 (TKUL) - LA-29 (SG)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and luggage compartment door key cylinder switch not turned
    6. A01GYIDE01

      Using an oscilloscope, check waveform 2.

      Waveform 2 (Reference):
      Item Content
      Terminal No. (Symbols) S63-10 (TKUL) - LA-29 (SG)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch off, all doors closed and luggage compartment door key cylinder switch not turned

  3. CHECK LUGGAGE CLOSER MOTOR (POWER TRUNK LID ECU)

    A01H2AME01

    1. Disconnect the S43 motor connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      S43-8 (IG) - S43-11 (GND) Y - W-B IG signal Power switch on (IG) 11 to 14 V
      Power switch off Below 1 V
      S43-10 (ECUB) - S43-11 (GND) B - W-B ECU power supply Always 11 to 14 V
      S43-11 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      S43-12 (B) - S43-11 (GND) G - W-B Auxiliary battery power supply Always 11 to 14 V

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

    3. Reconnect the S43 motor connector.

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

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      S43-1 (LCM-) - S43-11 (GND) W - W-B Luggage compartment door closer motor signal output Luggage compartment door closer is operated 11 to 14 V
      S43-2 (LCM+) - S43-11 (GND) R-B - W-B Luggage compartment door closer motor signal output Luggage compartment door closer is operated in reverse 11 to 14 V
      S43-7 (HALF) - S43-11 (GND) G - W-B Luggage compartment door closer half-latch switch signal Power switch on (IG), luggage compartment door open → fully closed Below 1 V → Pulse generation (see waveform 1)
      S43-9 (BDCY) - S43-11 (GND) L - W-B Luggage compartment door closer striker switch signal Power switch on (IG), luggage compartment door open → fully closed Below 1 V → Pulse generation (see waveform 1)
      S43-20 (PAWL) - S43-11 (GND) Y - W-B Luggage compartment door closer pawl switch signal Power switch on (IG), luggage compartment door open → fully closed Below 1 V → Pulse generation (see waveform 1)
      S43-22 (LCTY) - S43-11 (GND) G - W-B Luggage compartment door courtesy switch signal Power switch on (IG), luggage compartment door open → fully closed Below 1 V → Pulse generation (see waveform 1)
      S43-24 (LOPN) - S43-11 (GND) B - W-B Luggage compartment door closer motor position switch signal Power switch on (IG), luggage compartment door open → fully closed Below 1 V → Pulse generation (see waveform 1)
      S43-19 (LPSW) - S43-11 (GND) BR - W-B Luggage electrical key switch signal Luggage electrical key switch pushed Below 1 V
      Power switch on (IG), luggage compartment door closed and luggage electrical key switch not pushed Pulse generation (see waveform 2)
      S43-4 (LDDN) - S43-11 (GND) L - W-B Luggage compartment door closer switch signal Luggage compartment door closer switch is ON Below 1 V
      Power switch on (IG), luggage compartment door closed and luggage compartment door closer switch is OFF Pulse generation (see waveform 3)
    5. A01GWKTE01

      Using an oscilloscope, check waveform 1.

      Waveform 1 (Reference):
      Item Content
      Terminal No. (Symbols)

      S43-7 (HALF) - S43-11 (GND)

      S43-9 (BDCY) - S43-11 (GND)

      S43-20 (PAWL) - S43-11 (GND)

      S43-22 (LCTY) - S43-11 (GND)

      S43-24 (LOPN) - S43-11 (GND)
      Tool Setting 5 V/DIV., 20 ms/DIV.
    6. A01GWKTE01

      Using an oscilloscope, check waveform 2.

      Waveform 2 (Reference):
      Item Content
      Terminal No. (Symbols) S43-19 (LPSW) - S43-11 (GND)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch on (IG), luggage compartment door closed and luggage electrical key switch not pushed
    7. A01GWKTE01

      Using an oscilloscope, check waveform 3.

      Waveform 3 (Reference):
      Item Content
      Terminal No. (Symbols) S43-4 (LDDN) - S43-11 (GND)
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Power switch on (IG), luggage compartment door closed and luggage compartment door closer switch is OFF