LIN COMMUNICATION SYSTEM TERMINALS OF ECU


  1. CHECK MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

    A01WZ1VE02

    1. Disconnect the 2D, E1, E2 and E3 ECU connectors.

    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
      2D-62 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      E3-1 (GND3) - Body ground BR - Body ground Ground Always Below 1 Ω
      E2-1 (AM2) - 2D-62 (GND2) W - W-B Battery power supply Always 11 to 14 V
      E1-6 (AM1) - 2D-62 (GND2) W - W-B 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.

  2. CHECK MASTER SWITCH (for Models with Jam Protection Function on 4 Windows)

    A01WYUSE02

    1. Disconnect the I11*1 or I22*2 master switch connector.

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

      Tech Tips


      • *1: for LHD

      • *2: for RHD

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I11-11 (B) - I11-12 (GND) L - W-B Ignition power supply Ignition switch off Below 1 Ω
      I11-11 (B) - I11-12 (GND) L - W-B Ignition power supply Ignition switch ON 11 to 14 V
      I11-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      I22-11 (B) - I22-12 (GND) L - W-B Ignition power supply Ignition switch off Below 1 Ω
      I22-11 (B) - I22-12 (GND) L - W-B Ignition power supply Ignition switch ON 11 to 14 V
      I22-12 (GND) - 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. CHECK FRONT POWER WINDOW REGULATOR MOTOR LH

    A01X05KE04

    1. Disconnect the I12 motor 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
      I12-2 (B) - I12-1 (GND) L - W-B Battery power supply Always 11 to 14 V
      I12-1 (GND) - 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.

  4. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

    A01XBGPE04

    1. Disconnect the I4 motor 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
      I4-2 (B) - I4-1 (GND) L - W-B Battery power supply Always 11 to 14 V
      I4-1 (GND) - 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.

  5. CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Models with Jam Protection Function on 4 Windows)

    A01X4H3E04

    1. Disconnect the J11 motor 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
      J11-2 (B) - J11-1 (GND) L - W-B Battery power supply Always 11 to 14 V
      J11-1 (GND) - 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.

  6. CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for Models with Jam Protection Function on 4 Windows)

    A01XBIKE04

    1. Disconnect the J4 motor 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
      J4-2 (B) - J4-1 (GND) L - W-B Battery power supply Always 11 to 14 V
      J4-1 (GND) - 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.

  7. CHECK SLIDING ROOF ECU (w/ Sliding Roof System)

    A01X2G8E02

    1. Disconnect the R5 ECU 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
      R5-1 (B) - R5-2 (E) L - W-B Battery power supply Always 11 to 14 V
      R5-2 (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.

  8. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A01X86LE02

    1. Disconnect the E29 ECU 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
      E29-1 (+B) - E29-17 (E) B - W-B Battery power supply Always 11 to 14 V
      E29-17 (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.

  9. CHECK ID CODE BOX (IMMOBILISER CODE ECU)

    A01X6O2E02

    1. Disconnect the E28 ECU 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
      E28-1 (+B) - E28-8 (GND) B - W-B Battery power supply Always 11 to 14 V
      E28-8 (GND) - 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.

  10. CHECK STEERING LOCK ECU

    A01XBRGE04

    1. Disconnect the E26 ECU 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
      E26-7 (B) - E26-1 (GND) R - W-B Battery power supply Always 11 to 14 V
      E26-1 (GND) - 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.

  11. CHECK AIR CONDITIONING AMPLIFIER (for 4-ZONE Type)

    A01X7ESE03

    1. Disconnect the E36 amplifier 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
      E36-5 (IG+) - E36-1 (GND) G - W-B IG power supply Ignition switch off Below 1 V
      E36-5 (IG+) - E36-1 (GND) G - W-B IG power supply Ignition switch ON 11 to 14 V
      E36-6 (+B1) - E36-1 (GND) R - W-B Battery power supply Always 11 to 14 V
      E36-7 (+B2) - E36-1 (GND) R - W-B Battery power supply Always 11 to 14 V
      E36-1 (GND) - 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.

  12. CHECK AIR CONDITIONING AMPLIFIER (except 4-ZONE Type)

    A01X2NLE04

    1. Disconnect the E81 amplifier 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
      E81-21 (+B) - E81-14 (GND) R - W-B Battery power supply Always 11 to 14 V
      E81-1 (IG+) - E81-14 (GND) G - W-B IG power supply Ignition switch ON 11 to 14 V
      E81-1 (IG+) - E81-14 (GND) G - W-B IG power supply Ignition switch off Below 1 V
      E81-14 (GND) - 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.

  13. CHECK FRONT AIR CONDITIONING CONTROL PANEL (w/o Navigation System)

    A01X4NQE02

    1. Disconnect the F10 panel 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
      F10-7 (IG+) - F10-1 (GND) G - W-B IG power supply Ignition switch ON 11 to 14 V
      F10-1 (GND) - 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.

  14. CHECK REAR AIR CONDITIONING CONTROL PANEL

    A01XAGTE02

    1. Disconnect the E55 panel 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
      E55-6 (IG) - E55-1 (E) G - W-B IG power supply Ignition switch ON 11 to 14 V
      E55-1 (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.

  15. CHECK RAIN SENSOR (w/ Rain Sensor)

    A01XAIUE06

    1. Disconnect the R11 rain sensor connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      R11-4 (SIG) - Body ground G - Body ground IG signal circuit (to IG relay) Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V
      R11-1 (ES) - Body ground W - Body ground Ground circuit Always Below 1 V

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

  16. CHECK WINDSHIELD WIPER ECU (w/ Rain Sensor)

    A01X7BSE02

    1. Disconnect the E83 and E85 ECU connectors.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      E83-5 (IG1l) - E83-6 (ES) G - L Power source Ignition switch ON 11 to 14 V
      E85-10 (E) - Body ground W-B - Body ground Power ground Always Below 1 Ω

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