LIN COMMUNICATION SYSTEM TERMINALS OF ECU


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

    A005OYIC42
    *A 1 Connector Type - -
    A005QBPC38
    *A 2 Connector Type - -

    1. Disconnect the MB main body ECU (multiplex network body 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 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 Ignition switch ACC 11 to 14 V
      Ignition switch off Below 1 V
      MB-32 (IG) - Body ground - IG power supply Ignition switch ON 11 to 14 V
      Ignition 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
      3H-25 - Body ground LG - Body ground LIN communication line Ignition switch ON Pulse generation
      3D-17 - Body ground*1 P - Body ground LIN communication line Ignition switch ON Pulse generation

      • *1: w/ Double Locking System

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

    A005OZKC23
    *A for LHD *B for RHD

    1. for LHD


      1. Disconnect the J2 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
        J2-2 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
        J2-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      3. Reconnect the J2 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
        J2-9 (LIN) - Body ground R - Body ground LIN communication line Ignition switch ON Pulse generation

    2. for RHD


      1. Disconnect the I2 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
        I2-2 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
        I2-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      3. Reconnect the I2 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
        I2-9 (LIN) - Body ground R - Body ground LIN communication line Ignition switch ON Pulse generation

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

    A005OZKC24
    *A for LHD *B for RHD

    1. for LHD


      1. Disconnect the I2 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
        I2-2 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
        I2-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      3. Reconnect the I2 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
        I2-9 (LIN) - Body ground P - Body ground LIN communication line Ignition switch ON Pulse generation

    2. for RHD


      1. Disconnect the J2 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
        J2-2 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
        J2-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      3. Reconnect the J2 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
        J2-9 (LIN) - Body ground P - Body ground LIN communication line Ignition switch ON Pulse generation

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

    A005PDSN42

    1. Disconnect the K2 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
      K2-2 (B) - Body ground R - Body ground Battery power supply Always 11 to 14 V
      K2-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the K2 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
      K2-9 (LIN) - Body ground LG - Body ground LIN communication line Ignition switch ON Pulse generation

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

    A005PDSN43

    1. Disconnect the L2 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
      L2-2 (B) - Body ground R - Body ground Battery power supply Always 11 to 14 V
      L2-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

    3. Reconnect the L2 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
      L2-9 (LIN) - Body ground LG - Body ground LIN communication line Ignition switch ON Pulse generation

  6. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

    A005PTHC14
    *A for LHD *B for RHD

    1. for LHD


      1. Disconnect the J6 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
        J6-11 (B) - Body ground B - Body ground Battery power supply Always 11 to 14 V
        J6-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      3. Reconnect the J6 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
        J6-17 (LIN1) - Body ground P - Body ground LIN communication line Ignition switch ON Pulse generation
        J6-16 (LIN2) - Body ground R - Body ground LIN communication line Ignition switch ON Pulse generation

    2. for RHD


      1. Disconnect the I6 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
        I6-11 (B) - Body ground B - Body ground Battery power supply Always 11 to 14 V
        I6-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω

      3. Reconnect the I6 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
        I6-17 (LIN1) - Body ground P - Body ground LIN communication line Ignition switch ON Pulse generation
        I6-16 (LIN2) - Body ground R - Body ground LIN communication line Ignition switch ON Pulse generation

  7. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Entry and Start System)

    B008L1DN40

    1. Disconnect the F1 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
      F1-18 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      F1-4 (+B) - Body ground L - Body ground +B power supply Always 11 to 14 V

    3. Reconnect the F1 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
      F1-13 (LIN) - Body ground B - Body ground LIN communication line Ignition switch ON Pulse generation

  8. CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRACKET ASSEMBLY) (w/ Entry and Start System)

    A005OHZN01

    1. Disconnect the F78 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
      F78-1 (GND) - Body ground W-B Body ground Ground Always Below 1 Ω
      F78-7 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V

    3. Reconnect the F78 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
      F78-5 (LIN) - Body ground V - Body ground LIN communication line Ignition switch ON Pulse generation

  9. CHECK ID CODE BOX (IMMOBILISER CODE ECU) (w/ Entry and Start System)

    A005Q7DN01

    1. Disconnect the F21 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
      F21-5 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      F21-1 (+B) - Body ground W - Body ground +B power supply Always 11 to 14 V

    3. Reconnect the F21 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
      F21-2 (LIN1) - Body ground B - Body ground LIN communication line Ignition switch ON Pulse generation

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

    A005POKN17

    1. Disconnect the F14 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
      F14-12 (+B) - Body ground BE - Body ground Battery power supply Always 11 to 14 V
      F14-11 (CPUB) - Body ground SB - Body ground Battery power supply Always 11 to 14 V
      F14-7 (GND) - Body ground LA - Body ground Ground Always Below 1 Ω

    3. Reconnect the F14 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
      F14-9 (LIN) - Body ground P - Body ground LIN communication line Double lock unset Pulse generation