LIN COMMUNICATION SYSTEM TERMINALS OF ECU


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

    B007WU5C19
    *A for LHD *B for RHD

    1. Disconnect the MB main body ECU (multiplex network body ECU) connector.

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    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 connectors disconnected.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      MB-11 (GND1) - Body ground - Ground Always Below 1 Ω
      MB-31 (BECU) - Body ground - Battery power supply Always 11 to 14 V
      MB-30 (ACC) - Body ground - ACC power supply Engine switch on (ACC) 11 to 14 V
      MB-30 (ACC) - Body ground - ACC power supply Engine switch off Below 1 V
      MB-32 (IG) - Body ground - IG power supply Engine switch on (IG) 11 to 14 V
      MB-32 (IG) - Body ground - IG power supply Engine switch off Below 1 V

    3. Reconnect the MB main body ECU (multiplex network body ECU) connector.

    4. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      2D-25 - Body ground P - Body ground LIN communication line Engine switch on (IG) Pulse generation
      2B-17 - Body ground P - Body ground LIN communication line Engine switch on (IG) Pulse generation

  2. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door)

    A01VW7KC25
    *A for LHD *B for RHD

    1. for LHD


      1. Disconnect the N13 power window regulator motor assembly (for driver door) 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
        N13-2 (B) - Body ground G - Body ground Battery power supply Always 11 to 14 V
        N13-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      3. Reconnect the N13 power window regulator motor assembly (for driver door) connector.

      4. Check for pulses according to the value(s) in the table below.

        Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
        N13-9 (LIN) - Body ground P - Body ground LIN communication line Engine switch on (IG) Pulse generation

    2. for RHD


      1. Disconnect the M2 power window regulator motor assembly (for driver door) 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
        M2-2 (B) - Body ground Y - Body ground Battery power supply Always 11 to 14 V
        M2-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      3. Reconnect the M2 power window regulator motor assembly (for driver door) connector.

      4. Check for pulses according to the value(s) in the table below.

        Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
        M2-9 (LIN) - Body ground P - Body ground LIN communication line Engine switch on (IG) Pulse generation

  3. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Front Passenger Door)

    A01VW7KC26
    *A for LHD *B for RHD

    1. for LHD


      1. Disconnect the M13 power window regulator motor assembly (for front passenger door) 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
        M13-2 (B) - Body ground Y - Body ground Battery power supply Always 11 to 14 V
        M13-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      3. Reconnect the M13 power window regulator motor assembly (for front passenger door) connector.

      4. Check for pulses according to the value(s) in the table below.

        Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
        M13-9 (LIN) - Body ground P - Body ground LIN communication line Engine switch on (IG) Pulse generation

    2. for RHD


      1. Disconnect the N2 power window regulator motor assembly (for front passenger door) 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
        N2-2 (B) - Body ground G - Body ground Battery power supply Always 11 to 14 V
        N2-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      3. Reconnect the N2 power window regulator motor assembly (for front passenger door) connector.

      4. Check for pulses according to the value(s) in the table below.

        Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
        N2-9 (LIN) - Body ground P - Body ground LIN communication line Engine switch on (IG) Pulse generation

  4. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH Door)

    A01VWTKN29

    1. Disconnect the O1 power window regulator motor assembly (for rear RH door) 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
      O1-2 (B) - Body ground R - Body ground Battery power supply Always 11 to 14 V
      O1-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the O1 power window regulator motor assembly (for rear RH door) connector.

    4. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      O1-9 (LIN) - Body ground P - Body ground LIN communication line Engine switch on (IG) Pulse generation

  5. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door)

    A01VWTKN30

    1. Disconnect the P1 power window regulator motor assembly (for rear LH door) 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
      P1-2 (B) - Body ground B - Body ground Battery power supply Always 11 to 14 V
      P1-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the P1 power window regulator motor assembly (for rear LH door) connector.

    4. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      P1-9 (LIN) - Body ground P - Body ground LIN communication line Engine switch on (IG) Pulse generation

  6. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

    A01VTRDC11
    *A for LHD *B for RHD

    1. for RHD


      1. Disconnect the N7 multiplex network master switch 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
        N7-11 (B) - Body ground LG - Body ground Battery power supply Always 11 to 14 V
        N7-12 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

      3. Reconnect the N7 multiplex network master switch assembly connector.

      4. Check for pulses according to the value(s) in the table below.

        Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
        N7-17 (LIN1) - Body ground P - Body ground LIN communication line Engine switch on (IG) Pulse generation

    2. for RHD


      1. Disconnect the M7 multiplex network master switch 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
        M7-11 (B) - Body ground LG - Body ground Battery power supply Always 11 to 14 V
        M7-12 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

      3. Reconnect the M7 multiplex network master switch assembly connector.

      4. Check for pulses according to the value(s) in the table below.

        Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
        M7-17 (LIN1) - Body ground P - Body ground LIN communication line Engine switch on (IG) Pulse generation

  7. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) (w/ Sliding Roof System)

    A01VX63N16

    1. Disconnect the U2 sliding roof ECU (sliding roof drive gear sub-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
      U2-1 (B) - Body ground V - Body ground Battery power supply Always 11 to 14 V
      U2-2 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the U2 sliding roof ECU (sliding roof drive gear sub-assembly) connector.

    4. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      U2-7 (MPX1) - Body ground P - Body ground LIN communication line Engine switch on (IG) Pulse generation

  8. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) (w/ Panoramic Moon Roof System)

    A01VX63N16

    1. Disconnect the U2 sliding roof ECU (sliding roof drive gear 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
      U2-1 (B) - Body ground V - Body ground Battery power supply Always 11 to 14 V
      U2-2 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the U2 sliding roof ECU (sliding roof drive gear assembly) connector.

    4. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      U2-7 (MPX1) - Body ground P - Body ground LIN communication line Engine switch on (IG) Pulse generation

  9. CHECK ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) (w/ Panoramic Moon Roof System)

    A01VX63N17

    1. Disconnect the w1 roof sunshade ECU (sliding roof drive gear 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
      w1-1 (+B) - Body ground V - Body ground Battery power supply Always 11 to 14 V
      w1-2 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the w1 roof sunshade ECU (sliding roof drive gear assembly) connector.

    4. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      w1-7 (MPX1) - Body ground P - Body ground LIN communication line Engine switch on (IG) Pulse generation

  10. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A01VXLNC12
    *A for LHD *B for RHD

    1. Disconnect the J41 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
      J41-18 (E) - Body ground BR - Body ground Ground Always Below 1 Ω
      J41-4 (+B) - Body ground BE - Body ground +B power supply Always 11 to 14 V

    3. Reconnect the J41 certification ECU (smart key ECU assembly) connector.

    4. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      J41-13 (LIN) - Body ground V - Body ground LIN communication line Engine switch on (IG) Pulse generation

  11. CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRACKET ASSEMBLY)

    A01VY7LC30
    *A for LHD *B for RHD

    1. for LHD


      1. Disconnect the L1 steering lock ECU (steering lock actuator or upper bracket assembly) connector.

      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
        L1-1 (GND) - Body ground W-B Body ground Ground Always Below 1 Ω
        L1-7 (B) - Body ground G - Body ground Battery power supply Always 11 to 14 V

      3. Reconnect the L1 steering lock ECU (steering lock actuator or upper bracket assembly) connector.

      4. Check for pulses according to the value(s) in the table below.

        Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
        L1-5 (LIN) - Body ground V - Body ground LIN communication line Engine switch on (IG) Pulse generation

    2. for RHD


      1. Disconnect the J26 steering lock ECU (steering lock actuator or upper bracket assembly) connector.

      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
        J26-1 (GND) - Body ground W-B Body ground Ground Always Below 1 Ω
        J26-7 (B) - Body ground G - Body ground Battery power supply Always 11 to 14 V

      3. Reconnect the J26 steering lock ECU (steering lock actuator or upper bracket assembly) connector.

      4. Check for pulses according to the value(s) in the table below.

        Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
        J26-5 (LIN) - Body ground V - Body ground LIN communication line Engine switch on (IG) Pulse generation

  12. CHECK ID CODE BOX (IMMOBILISER CODE ECU)

    A01VTXYN82

    1. Disconnect the J36 ID code box (immobiliser code 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
      J36-5 (GND) - Body ground BR - Body ground Ground Always Below 1 Ω
      J36-1 (+B) - Body ground G - Body ground +B power supply Always 11 to 14 V

    3. Reconnect the J36 ID code box (immobiliser code ECU) connector.

    4. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      J36-2 (LIN1) - Body ground V - Body ground LIN communication line Engine switch on (IG) Pulse generation

  13. CHECK DOUBLE LOCK DOOR CONTROL RELAY ASSEMBLY (w/ Double Locking System)

    A01VWUMN12

    1. Disconnect the J44 double lock door control relay 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
      J44-12 (+B) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      J44-11 (CPUB) - Body ground LG - Body ground Battery power supply Always 11 to 14 V
      J44-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the J44 double lock door control relay assembly connector.

    4. Check for pulses according to the value(s) in the table below.

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      J44-9 (LIN) - Body ground P - Body ground LIN communication line Double lock unset Pulse generation