LIN COMMUNICATION SYSTEM TERMINALS OF ECU


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

    A01EOTKE03

    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

    A01EN8YE07

    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.

      *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 Engine switch off Below 1 Ω
      I11-11 (B) - I11-12 (GND) L - W-B Ignition power supply Engine switch on (IG) 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 Engine switch off Below 1 Ω
      I22-11 (B) - I22-12 (GND) L - W-B Ignition power supply Engine switch on (IG) 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

    A01EPKFE21

    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

    A01EPKFE22

    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

    A01EPKFE23

    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

    A01EPKFE24

    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

    A01ER78E07

    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)

    A01ES71E15

    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)

    A01EOU5E02

    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

    A01EOETE02

    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 (A/C ECU)

    A01EQY8E05

    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 Engine switch off Below 1 V
      E36-5 (IG+) - E36-1 (GND) G - W-B IG power supply Engine switch on (IG) 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 REAR AIR CONDITIONING CONTROL PANEL

    A01ESEHE01

    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 Engine switch off Below 1 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.

  13. CHECK RAIN SENSOR

    A01EOXWE05

    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 Engine switch off Below 1 V
      Engine switch on (IG) 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.

  14. CHECK WINDSHIELD WIPER ECU

    A01ER25E03

    1. Disconnect the E89 and E90 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
      E89-5 (IG1l) - E90-10 (E) G - W-B Power source Engine switch off Below 1 V
      E89-5 (IG1l) - E90-10 (E) G - W-B Power source Engine switch on (IG) 11 to 14 V
      E90-10 (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.

  15. CHECK OVERHEAD JUNCTION BLOCK

    A01ENS3E03

    1. Disconnect the R7 block 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
      R7-16 (GND9) - Body ground W-B - Body ground Body ground Always Below 1 V
      R7-6 (+B2) - 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.

  16. CHECK NO. 2 MAIN BODY ECU

    A01ES90E01

    1. Disconnect the L33 and L34 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
      L33-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
      L34-7 (GND) - Body ground W-B - Body ground Ground Always Below 1 V
      L33-14 (BECU) - 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.