LIN COMMUNICATION SYSTEM TERMINALS OF ECU

  1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    B367011N09

    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

      +B power supply

      Always

      11 to 14 V

    3. Reconnect the E49 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

      E49-5 (LIN) - Body ground

      BE - Body ground

      LIN communication line

      Engine switch on (IG)

      Pulse generation

  2. CHECK STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)

    B118684N62

    1. Disconnect the E47 steering lock ECU (steering lock actuator 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

      E47-1 (GND) - Body ground

      W-B Body ground

      Ground

      Always

      Below 1 Ω

      E47-7 (B) - Body ground

      V - Body ground

      Battery power supply

      Always

      11 to 14 V

    3. Reconnect the E47 steering lock ECU (steering lock actuator 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

      E47-5 (LIN) - Body ground

      BE - Body ground

      LIN communication line

      Engine switch on (IG)

      Pulse generation

  3. CHECK ID CODE BOX (IMMOBILISER CODE ECU) (for RHD)

    B278917N38

    1. Disconnect the E48 ID code box (immobiliser code ECU) 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

      E48-5 (GND) - Body ground

      W-B - Body ground

      Ground

      Always

      Below 1 Ω

      E48-1 (+B) - Body ground

      R - Body ground

      +B power supply

      Always

      11 to 14 V

    3. Reconnect the E48 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

      E48-2 (LIN1) - Body ground

      BE - Body ground

      LIN communication line

      Engine switch on (IG)

      Pulse generation