LIN COMMUNICATION SYSTEM TERMINALS OF ECU


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

    A002LNZE04

    1. Disconnect the H80, DB and DE 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
      H80-4 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      DE-28 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      DH-12 (BECU) - Body ground B - Body ground 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 POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

    A002O6BE02
    Text in Illustration
    *1 for LHD *2 for RHD

    1. Disconnect the K5*1 or J5*2 master switch connector.


      • *1: for LHD

      • *2: for RHD

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

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      K5-11 (B) - Body ground R - Body ground Battery power supply Always 11 to 14 V
      K5-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      J5-11 (B) - Body ground R - Body ground Battery power supply Always 11 to 14 V
      J5-12 (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 DOOR WINDOW REGULATOR ASSEMBLY LH

    A002LHYE02
    Text in Illustration
    *1 for LHD *2 for RHD

    1. Disconnect the K8*1 or K10*2 regulator connector.


      • *1: for LHD

      • *2: for RHD

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

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      K8-2 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      K8-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      K10-2 (B) - Body ground G - Body ground Battery power supply Always 11 to 14 V
      K10-1 (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 DOOR WINDOW REGULATOR ASSEMBLY RH

    A002MHJE02
    Text in Illustration
    *1 for LHD *2 for RHD

    1. Disconnect the J8*1 or J6*2 regulator connector.


      • *1: for LHD

      • *2: for RHD

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

      for LHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      J8-2 (B) - Body ground G - Body ground Battery power supply Always 11 to 14 V
      J8-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      J6-2 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      J6-1 (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 DOOR WINDOW REGULATOR ASSEMBLY LH (w/ Rear Door Power Window)

    A002M7ME02

    1. Disconnect the M3 regulator 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
      M3-2 (B) - Body ground BR - Body ground Battery power supply Always 11 to 14 V
      M3-1 (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 DOOR WINDOW REGULATOR ASSEMBLY RH (w/ Rear Door Power Window)

    A002LKLE02

    1. Disconnect the L3 regulator 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
      L3-2 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      L3-1 (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 DRIVE GEAR SUB-ASSEMBLY (w/ Roof Sunshade System)

    A002O2OE02

    1. Disconnect the z3 drive gear 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
      z3-1 - Body ground W-R - Body ground Battery power supply Always 11 to 14 V
      z3-2 - 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 (w/ Entry and Start System)

    A002QU5E02

    1. Disconnect the H51 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
      H51-1 (+B) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      H51-15 (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 POWER MANAGEMENT CONTROL ECU (w/ Entry and Start System)

    A002N0DE02

    1. Disconnect the H71 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
      H71-1 (AM22) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      H71-2 (AM21) - Body ground B - Body ground Battery power supply Always 11 to 14 V
      H71-6 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      H71-5 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω

  10. CHECK ID CODE BOX (w/ Entry and Start System)

    A002NESE02

    1. Disconnect the H111 box 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
      H111-1 (+B) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      H111-8 (GND) - Body ground BR - 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 STEERING LOCK ACTUATOR ASSEMBLY (w/ Entry and Start System)

    A002NABE02

    1. Disconnect the H54 actuator 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
      H54-7 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      H54-1 (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 ASSEMBLY (for Automatic Air Conditioning System)

    A002P9VE02

    1. Disconnect the H46 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
      H46-1 (IG+) - Body ground Y - Body ground IG power supply Ignition switch off Below 1 V
      H46-1 (IG+) - Body ground Y - Body ground IG power supply Ignition switch ON 11 to 14 V
      H46-21 (B) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      H46-14 (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 AIR CONDITIONING CONTROL ASSEMBLY (for Automatic Air Conditioning System)

    A002N2DE04

    1. Disconnect the H21 control 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
      H21-2 (IG+) - Body ground R - Body ground IG power supply Ignition switch off Below 1 V
      H21-2 (IG+) - Body ground R - Body ground IG power supply Ignition switch ON 11 to 14 V
      H21-5 (GND) - Body ground BR - 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 RAIN SENSOR (w/ Rain Sensor)

    A002N9HE02

    1. Disconnect the Q5 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
      Q5-3 (SIG) - Body ground P - Body ground IG power supply Ignition switch off Below 1 V
      Q5-3 (SIG) - Body ground P - Body ground IG power supply Ignition switch ON 11 to 14 V
      Q5-2 (ES) - Body ground LG - Body ground Ground Always Below 1 V

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

  15. CHECK WINDSHIELD WIPER RELAY ASSEMBLY (w/ Rain Sensor)

    A002PNNE02

    1. Disconnect the H56 relay connector.

    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
      H56-2 (IG) - Body ground L - Body ground IG power supply Ignition switch off Below 1 V
      H56-2 (IG) - Body ground L - Body ground IG power supply Ignition switch ON 11 to 14 V
      H56-12 (E) - Body ground BR - Body ground Ground Always Below 1 Ω

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

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

    A002QCLE02

    1. Disconnect the H50 relay connector.

    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
      H50-7 (CPUB) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      H50-1 (+B) - Body ground B - Body ground Battery power supply Always 11 to 14 V
      H50-14 (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.