LIN COMMUNICATION SYSTEM TERMINALS OF ECU


  1. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND DRIVER SIDE JUNCTION BLOCK ASSEMBLY

    B001CMDE02
    Text in Illustration
    *A for LHD *B for RHD
    *1 Main body ECU (multiplex network body ECU) - -

    1. Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly Click here.

    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
      G63-3 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      A-11 (GND1) - Body ground None - Body ground Ground Always Below 1 Ω
      A-30 (BECU) - Body ground None - Body ground Battery power supply Always 11 to 14 V
      A-32 (IG) - Body ground None - Body ground IG power supply Ignition switch ON 11 to 14 V

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

  2. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY


    1. B001G9XE02
      Text in Illustration
      *A for LHD
      *B for RHD

      Disconnect the K4*1 or J9*2 multiplex network master switch assembly 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
      K4-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      K4-11 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      for RHD
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      J9-12 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      J9-11 (B) - Body ground L - 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.

  3. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH


    1. B001I7DE02

      Disconnect the K7 front power window regulator motor assembly LH 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
      K7-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      K7-2 (B) - Body ground

      R - Body ground*1

      G - Body ground*2

      		 Battery power supply Always 11 to 14 V

      • *1: for LHD

      • *2: for RHD

      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


    1. B001HAAE02

      Disconnect the J7 front power window regulator motor assembly RH 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
      J7-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      J7-2 (B) - Body ground

      G - Body ground*1

      R - Body ground*2

      		 Battery power supply Always 11 to 14 V

      • *1: for LHD

      • *2: for RHD

      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 5 Door)


    1. B001FY1E04

      Disconnect the M4 rear power window regulator motor assembly LH 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
      M4-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      M4-2 (B) - Body ground W - 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.

  6. CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for 5 Door)


    1. B001GGVE04

      Disconnect the L4 rear power window regulator motor assembly RH 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
      L4-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      L4-2 (B) - Body ground W - 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.

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


    1. B001DN6E05

      Disconnect the W2 sliding roof drive gear sub-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
      W2-2 (E)- Body ground W-B - Body ground Ground Always Below 1 Ω
      W2-1 (B) - Body ground W - Body ground Battery power supply Always 11 to 14 V
      W2-5 (IG) - Body ground L - Body ground IG power supply Ignition switch ON 11 to 14 V

      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)

    B001HOZE02

    1. Disconnect the G38 certification 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
      G38-15 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G38-1 (+B) - Body ground V - Body ground Battery power supply Always 11 to 14 V
      G38-16 (IG) - Body ground W - Body ground IG power supply Ignition switch ON 11 to 14 V

      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)

    B001HRUE02

    1. Disconnect the G51 power management control 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
      G51-6 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G51-5 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G51-1 (AM22) - Body ground B - Body ground Battery power supply Always 11 to 14 V
      G51-2 (AM21) - Body ground B - Body ground Battery power supply Always 11 to 14 V

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

    B001HDFE02

    1. Disconnect the G37 ID code 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
      G37-8 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G37-1 (+B) - Body ground V - 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.

  11. CHECK STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU) (w/ Entry and Start System)


    1. B001HL3E02

      Disconnect the G35 steering lock actuator assembly (steering lock 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
      G35-1 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G35-7 (B) - Body ground G - Body ground Battery power supply Always 11 to 14 V
      G35-6 (IG2) - Body ground W - Body ground IG power supply Ignition switch ON 11 to 14 V

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

  12. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY

    B001E16E02

    1. Disconnect the G25 air conditioning amplifier 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
      G25-14 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G25-21 (B) - Body ground V - Body ground Battery power supply Always 11 to 14 V
      G25-1 (IG+) - Body ground L - Body ground IG power supply Ignition switch ON 11 to 14 V

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

  13. CHECK INTEGRATION CONTROL AND PANEL ASSEMBLY


    1. B001DKGE02

      Disconnect the G23 integration control and panel 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
      G23-4 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G23-5 (IG+) - Body ground L - Body ground IG power supply Ignition switch ON 11 to 14 V

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

  14. CHECK AIR CONDITIONING CONTROL ASSEMBLY (w/ Rear Air Conditioning System)


    1. B001E2KE02

      Disconnect the T7 air conditioning control 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
      T7-8 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      T7-1 (IG) - Body ground L - Body ground IG power supply Ignition switch ON 11 to 14 V

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

  15. CHECK RAIN SENSOR (w/ Rain Sensor)


    1. B001CF6E04

      Disconnect the W6 rain sensor 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
      W6-1 (ES) - Body ground W-B - Body ground Ground Always Below 1 Ω
      W6-4 (SIG) - Body ground GR - Body ground IG power supply Ignition switch ON 11 to 14 V

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

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

    B001DP3E01

    1. Disconnect the G120 windshield wiper relay assembly connector.

    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
      G120-1 (EW) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G120-17 (+B) - Body ground G - Body ground Battery power supply Always 11 to 14 V
      G120-3 (WIG) - Body ground G - Body ground IG power supply Ignition switch ON 11 to 14 V
      for RHD (for RH Side Type Wiper Switch)
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G120-9 (EW) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G120-11 (+B) - Body ground G - Body ground Battery power supply Always 11 to 14 V
      G120-7 (WIG) - Body ground G - Body ground IG power supply Ignition switch ON 11 to 14 V
      for RHD (for LH Side Type Wiper Switch)
      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G120-1 (EW) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G120-17 (+B) - Body ground G - Body ground Battery power supply Always 11 to 14 V
      G120-3 (WIG) - Body ground G - Body ground IG power supply Ignition switch ON 11 to 14 V

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

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


    1. B001EKQE02

      Disconnect the G49 double lock door control relay 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
      G49-14 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G49-7 (CPUB) - Body ground P - Body ground Battery power supply Always 11 to 14 V
      G49-1 (+B) - Body ground R - 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.

  18. CHECK DRIVING SUPPORT SWITCH CONTROL ECU (for Manual Transmission, w/ Multi-function Switch)


    1. B001DNDE02

      Disconnect the G76 driving support switch control 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
      G76-16 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G76-6 (+B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      G76-7 (IG) - Body ground L - Body ground IG power supply Ignition switch ON 11 to 14 V

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

  19. CHECK DRIVING SUPPORT SWITCH CONTROL ECU (for Automatic Tansmission, w/ Multi-function Switch)


    1. Disconnect the G163 driving support switch control ECU connector.

      B001GLPE01

    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
      G163-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 Ω
      G163-8 (+B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      G163-10 (IG) - Body ground L - Body ground IG power supply Ignition switch ON 11 to 14 V

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

  20. CHECK COMBINATION METER ASSEMBLY

    B001F2YE02

    1. Disconnect the G6 combination meter assembly connector.

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

      Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
      G6-21 (E2) - Body ground BR - Body ground Ground Always Below 1 V
      G6-26 (B) - Body ground L - Body ground Battery power supply Always 11 to 14 V
      G6-28 (IG+) - Body ground R - Body ground IG power supply Ignition switch ON 11 to 14 V

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