SLIDING ROOF SYSTEM TERMINALS OF ECU


  1. CHECK SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU)

    A00951FE27

    1. Disconnect the W2 ECU connector.

    2. 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
      W2-1 (B) - W2-2 (E) W - W-B Battery power supply Always 11 to 14 V
      W2-5 (IG) - W2-2 (E) L - W-B IG power supply Ignition switch off Below 1 V
      W2-5 (IG) - W2-2 (E) L - W-B IG power supply Ignition switch ON 11 to 14 V
      W2-2 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

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

    3. Reconnect the W2 ECU connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      W2-7 (OPN) - W2-2 (E) LG - W-B Sliding roof motor open

      Ignition switch ON, sliding roof closed

      Slide open switch off

      		 11 to 14 V
      W2-7 (OPN) - W2-2 (E) LG - W-B Sliding roof motor open

      Ignition switch ON, sliding roof closed

      Slide open switch on

      		 Below 1 V
      W2-9 (CLS) - W2-2 (E) B - W-B Sliding roof motor close

      Ignition switch ON, sliding roof open

      Slide close switch off

      		 11 to 14 V
      W2-9 (CLS) - W2-2 (E) B - W-B Sliding roof motor close

      Ignition switch ON, sliding roof open

      Slide close switch on

      		 Below 1 V
      W2-10 (UP) - W2-2 (E) R - W-B Sliding roof motor up

      Ignition switch ON, sliding roof tilted downward

      Tilt up switch off

      		 11 to 14 V
      W2-10 (UP) - W2-2 (E) R - W-B Sliding roof motor up

      Ignition switch ON, sliding roof tilted downward

      Tilt up switch on

      		 Below 1 V
      W2-8 (DWN) - W2-2 (E) P - W-B Sliding roof motor down

      Ignition switch ON, sliding roof tilted upward

      Tilt down switch off

      		 11 to 14 V
      W2-8 (DWN) - W2-2 (E) P - W-B Sliding roof motor down

      Ignition switch ON, sliding roof tilted upward

      Tilt down switch on

      		 Below 1 V

      • If the result is not as specified, the sliding roof drive gear sub-assembly may have a malfunction.

  2. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    A0099Y4E06
    Text in Illustration
    *A for LHD *B for RHD

    1. Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly Click here.

    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
      A-30 (BECU) - Body ground - Battery power supply Always 11 to 14 V
      A-31 (ALTB) - Body ground - Battery power supply Always 11 to 14 V
      A-32 (IG) - Body ground - Ignition switch power supply Ignition switch ON 11 to 14 V
      A-32 (IG) - Body ground - Ignition switch power supply Ignition switch off Below 1 V
      A-29 (ACC) - Body ground - ACC power supply Ignition switch ACC 11 to 14 V
      A-29 (ACC) - Body ground - ACC power supply Ignition switch off Below 1 V
      A-11 (GND1) - Body ground - Ground Always Below 1 Ω
      G63-3 (GND2) - 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. Install the main body ECU (multiplex network body ECU).

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

      for LHD:
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      2I-27 (FLCY) - Body ground R - Body ground Front door LH courtesy switch input Front door LH open Below 1 V
      2I-27 (FLCY) - Body ground R - Body ground Front door LH courtesy switch input Front door LH closed 11 to 14 V
      G64-11 (L2) - Body ground GR - Body ground Driver side door key-linked lock input Driver side door key cylinder in lock position Below 1 V
      G64-11 (L2) - Body ground GR - Body ground Driver side door key-linked lock input Ignition switch off, all doors closed and driver side door key cylinder in neutral position Pulse generation (See waveform 1 or 2)
      G64-24 (UL3) - Body ground LG - Body ground Driver side door key-linked unlock input Driver side door key cylinder in unlock position Below 1 V
      G64-24 (UL3) - Body ground LG - Body ground Driver side door key-linked unlock input Ignition switch off, all doors closed and driver side door key cylinder in neutral position Pulse generation (See waveform 3 or 4)
      G64-26 (RDA) - Body ground* P - Body ground Door control receiver input No key in ignition key cylinder, all doors closed and transmitter switch off → on Pulse generation
      for RHD:
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      2H-26 (FRCY) - Body ground B - Body ground Front door RH courtesy switch input Front door RH open Below 1 V
      2H-26 (FRCY) - Body ground B - Body ground Front door RH courtesy switch input Front door RH closed 11 to 14 V
      G64-11 (L2) - Body ground GR - Body ground Driver side door key-linked lock input Driver side door key cylinder in lock position Below 1 V
      G64-11 (L2) - Body ground GR - Body ground Driver side door key-linked lock input Ignition switch off, all doors closed and driver side door key cylinder in neutral position Pulse generation (See waveform 1 or 2)
      G64-24 (UL3) - Body ground LG - Body ground Driver side door key-linked unlock input Driver side door key cylinder in unlock position Below 1 V
      G64-24 (UL3) - Body ground LG - Body ground Driver side door key-linked unlock input Ignition switch off, all doors closed and driver side door key cylinder in neutral position Pulse generation (See waveform 3 or 4)
      G64-26 (RDA) - Body ground* P - Body ground Door control receiver input No key in ignition key cylinder, all doors closed and transmitter switch off → on Pulse generation

      • *: w/o Entry and Start System

      If the result is not as specified, the main body ECU (multiplex network body ECU) or driver side junction block assembly may have a malfunction.

    5. A0094G1E01

      Using an oscilloscope, check waveform 1.

      Waveform 1 (Reference)
      Item Content
      Terminal No. (Symbol) G64-11 (L2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and front door key cylinder in neutral position
    6. A0096YWE01

      Using an oscilloscope, check waveform 2.

      Waveform 2 (Reference)
      Item Content
      Terminal No. (Symbol) G64-11 (L2) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and front door key cylinder in neutral position
    7. A0099FOE01

      Using an oscilloscope, check waveform 3.

      Waveform 3 (Reference)
      Item Content
      Terminal No. (Symbol) G64-24 (UL3) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side door key cylinder in neutral position
    8. A009AVHE01

      Using an oscilloscope, check waveform 4.

      Waveform 4 (Reference)
      Item Content
      Terminal No. (Symbol) G64-24 (UL3) - Body ground
      Tool Setting 5 V/DIV., 20 ms/DIV.
      Condition Ignition switch off, all doors closed and driver side door key cylinder in neutral position

  3. CHECK CERTIFICATION ECU (w/ Smart Key System)

    A009BKEE18

    1. Disconnect the G38 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.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G38-1 (+B) - G38-15 (E) V - W-B Battery power supply Always 11 to 14 V
      G38-15 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G38-16 (IG) - G38-15 (E) W - W-B IG power supply Ignition switch off Below 1 V
      G38-16 (IG) - G38-15 (E) W - W-B IG power supply Ignition switch ON 11 to 14 V
      G38-17 (CUTB) - G38-15 (E) L - W-B Battery power supply Always 11 to 14 V

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

    3. Reconnect the G38 ECU connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G39-5 (RCO) - G38-15 (E) L - W-B Door control receiver power source Ignition switch off, all doors closed and transmitter switch not pressed Below 1 V
      G39-5 (RCO) - G38-15 (E) L - W-B Door control receiver power source Ignition switch off, all doors closed and transmitter switch pressed 4.5 to 5.5 V
      G39-15 (RDA) - G38-15 (E) G - W-B Door control receiver data input signal Ignition switch off 11 to 14 V pulse generation at regular intervals
      G39-16 (RSSI) - G38-15 (E) P - W-B Door control receiver electric wave existence signal All doors locked, all doors closed and transmitter switch not pressed 11 to 14 V
      G39-16 (RSSI) - G38-15 (E) P - W-B Door control receiver electric wave existence signal All doors locked, all doors closed and transmitter switch pressed Below 2 V

      • If the result is not as specified, the certification ECU may have a malfunction.