LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2009 >> LS 460 AWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Multiplex Communication >> Lin Communication System >> Terminals Of Ecu

Terminals Of Ecu

  1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK) 
    Fig 1: Main Body ECU Connector Chart (Driver Side Junction Block)
    G06198302Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the DA, L12 and L13 ECU connectors.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      DA-40 (GND2) - Body ground W-B - Body ground Ground Always Below 1 Ω
      DA-41 (GND1) - Body ground W-B - Body ground Ground Always Below 1 Ω
      L12-1 (AM2) - DA-40 (GND2) W - W-B Battery power supply Always 11 to 14 V
      L13-6 (AM1) - DA-40 (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 ASSEMBLY 
    Fig 2: Identifying N13 Master Switch Assembly Connector Terminal
    G06198303Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N13 master switch connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N13-11 (B) - N13-12 (GND) B - R Ignition power supply Engine switch off → Engine switch on (IG) Below 1 V → 11 to 14 V
      N13-12 (GND) - Body ground R - 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 ASSEMBLY LH 
    Fig 3: Identifying Front Power Window Regulator Motor Assembly LH Connector Terminal N11
    G06198304Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N11 motor connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N11-2 (B) - N11-1 (E) BE - B Battery power supply Always 11 to 14 V
      N11-1 (E) - Body ground 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 
    Fig 4: Identifying Front Power Window Regulator Motor Assembly RH Connector N3
    G06198305Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the N3 motor connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      N3-2 (B) - N3-1 (E) BE - B Battery power supply Always 11 to 14 V
      N3-1 (E) - Body ground 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 
    Fig 5: Identifying 019 Motor Connector Terminal
    G06198306Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O19 motor connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      O19-2 (B) - O19-1 (E) BE - B Battery power supply Always 11 to 14 V
      O19-1 (E) - Body ground 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 
    Fig 6: Identifying 08 Motor Connector Terminal
    G06198307Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the O8 motor connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      O8-2 (B) - O8-1 (E) BE-B Battery power supply Always 11 to 14 V
      O8-1 (E) - Body ground 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 (SLIDING ROOF ECU) 
    Fig 7: Identifying X5 ECU Connector Terminal
    G06198308Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the X5 ECU connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      X5-1 (B) - X5-2 (E) B - W-B Battery power supply Always 11 to 14 V
      X5-2 (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) 
    Fig 8: Identifying Certification ECU Connector Terminal
    G06198309Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L15 ECU connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      L15-1 (+B1) - L15-17 (E) L - W-B Battery power supply Always 11 to 14 V
      L15-17 (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 (IMMOBILIZER CODE ECU) 
    Fig 9: Identifying Terminals Of L32 Box Connector
    G06198310Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L32 box connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      L32-1 (+B) - L32-8 (GND) L - W-B Battery power supply Always 11 to 14 V
      L32-8 (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 ACTUATOR ASSEMBLY (STEERING LOCK ECU) 
    Fig 10: Identifying Terminals Of L33 ECU Connector
    G06198311Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L33 ECU connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      L33-7 (B) - L33-1 (GND) P - W-B Battery power supply Always 11 to 14 V
      L33-1 (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 FRONT LIGHT ECU (FRONT CONTROLLER) 
    Fig 11: Identifying Terminals Of A50 ECU Connector
    G06198312Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the A50 ECU connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      A50-1 (FMB3) - A50-2 (E) LG - W-B Battery power supply Always 11 to 14 V
      A50-5 (FMIG) - A50-2 (E) Y - W-B IG power supply Engine switch off → Engine switch on (IG) Below 1 V → 11 to 14 V
      A50-2 (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.

  12. CHECK RAIN SENSOR 
    Fig 12: Identifying X8 Sensor Connector Terminal
    G06198313Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the X8 sensor connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      X8-4 (SIG) - X8-1 (ES) LG - BR IG power supply Engine switch off → Engine switch on (IG) Below 1 V → 11 to 14 V
      X8-1 (ES) - 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.

  13. CHECK LUGGAGE ROOM JUNCTION BLOCK ASSEMBLY (REAR JUNCTION BLOCK ECU) 
    Fig 13: Luggage Room Junction Block Connector Terminal Chart (Rear Junction Block ECU)
    G06198314Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the LA and LD ECU connectors.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      LD-4 (MPXB) - LA-29 (SG) R - W-B Battery power supply Always 11 to 14 V
      LA-29 (SG) - 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 MAP LIGHT ASSEMBLY (OVERHEAD JUNCTION ECU) 
    Fig 14: Identifying X4 ECU Connector Terminal
    G06198315Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the X4 ECU connector.
    2. Measure the voltage and resistance according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      X4-6 (+B) - X4-16 (GND9) B - B Battery power supply Always 11 to 14 V
      X4-16 (GND9) - Body ground 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 OUTER MIRROR SWITCH 
    Fig 15: Identifying L6 Switch Connector Terminal
    G06198316Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L6 switch connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      L6-1 (E) - Body ground W-B - Body ground Ground Always Below 1 Ω
      L6-11 (IG) - L6-1 (E) G - W-B IG power supply Engine switch off → Engine switch on (IG) Below 1 V → 11 to 14 V
      L6-12 (B) - L6-1 (E) B - 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.

  16. CHECK No. 1 CONSOLE SWITCH 
    Fig 16: Identifying L75 Switch Connector Terminal
    G06198317Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L75 switch connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      L75-1 (B) - L75-5 (E) B - W-B Battery power supply Always 11 to 14 V
      L75-5 (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.

  17. CHECK FRONT SEAT CLIMATE CONTROL ECU LH 
    Fig 17: Identifying Terminals Of E34 ECU Connector
    G06198318Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the e34 ECU connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      e34-1 (IG) - e34-12 (GND) P - W-B IG power supply Engine switch off → Engine switch on (IG) Below 1 V → 11 to 14 V
      e34-2 (SYSB) - e34-12 (GND) R - W-B Battery power supply Always 11 to 14 V
      e34-12 (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.

  18. CHECK FRONT SEAT CLIMATE CONTROL ECU RH 
    Fig 18: Identifying Terminals Of E4 ECU Connector
    G06198319Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the e4 ECU connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      e4-1 (IG) - e4-12 (GND) Y - W-B IG power supply Engine switch off → Engine switch on (IG) Below 1 V → 11 to 14 V
      e4-2 (SYSB) - e4-12 (GND) W - W-B Battery power supply Always 11 to 14 V
      e4-11 (VER) - Body ground W-B - Body ground Ground Always Below 1 Ω
      e4-12 (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.

  19. CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY 
    Fig 19: Identifying Terminals Of L76 ECU Connector
    G06198320Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L76 ECU connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      L76-5 (IG+) - L76-1 (GND) V - W-B IG power supply Engine switch off → Engine switch on (IG) Below 1 V → 11 to 14 V
      L76-6 (+B1) - L76-1 (GND) L - W-B Battery power supply Always 11 to 14 V
      L76-7 (+B2) - L76-1 (GND) L - W-B Battery power supply Always 11 to 14 V
      L76-1 (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.

  20. CHECK REAR POWER SEAT MODULE SWITCH (except Ottoman) 
    Fig 20: Identifying Terminals Of R2 Switch Connector
    G06198321Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the r2 switch connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      r2-11 (B) - r2-3 (E) R - W-B Battery power supply Always 11 to 14 V
      r2-3 (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.

  21. CHECK REAR POWER SEAT MODULE SWITCH (for Ottoman) 
    Fig 21: Identifying Terminals Of S15 Switch Connector
    G06198322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the S15 switch connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      S15-6 (B) - S15-5 (E) R - W-B Battery power supply Always 11 to 14 V
      S15-5 (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.

  22. CHECK POSITION CONTROL ECU RH 
    Fig 22: Identifying Terminals Of F5 ECU Connector
    G06198323Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the f5 ECU connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      f5-6 (SYSB) - f5-12 (SGND) R - BR Battery power supply Always 10 to 14 V
      f5-1 (SEL) - f5-11 (SEL2) B - B Right or left identification Always Below 1 Ω
      f5-12 (SGND) -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.

  23. CHECK POSITION CONTROL ECU LH 
    Fig 23: Identifying f25 ECU Connector Terminal
    G06198324Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the f25 ECU connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      f25-6 (SYSB) - f25-12 (SGND) R - BR Battery power supply Always 10 to 14 V
      f25-12 (SGND) -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.

  24. CHECK REAR SEAT CLIMATE CONTROL ECU RH 
    Fig 24: Identifying f8 ECU Connector Terminal
    G06198325Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the f8 ECU connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      f8-1 (IG) - f8-12 (GND) Y - W-B IG power supply Engine switch off → Engine switch on (IG) Below 1 V → 11 to 14 V
      f8-2 (SYSB) - f8-12 (GND) G - W-B Battery power supply Always 11 to 14 V
      f8-11 (VER) - Body ground W-B - Body ground Ground Always Below 1 Ω
      f8-12 (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.

  25. CHECK REAR SEAT CLIMATE CONTROL ECU LH 
    Fig 25: Identifying Terminals Of F28 ECU Connector
    G06198326Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the f28 ECU connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      f28-1 (IG) - f28-12 (GND) P - W-B IG power supply Engine switch off → Engine switch on (IG) Below 1 V → 11 to 14 V
      f28-2 (SYSB) - f28-12 (GND) V - W-B Battery power supply Always 11 to 14 V
      f28-12 (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.

  26. CHECK SEAT VIBRATION MODULE ASSEMBLY 
    Fig 26: Identifying S29 Module Connector Terminal
    G06198327Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the S29 module connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      S29-1 (IG) - S29-8 (GND) BR - W-B IG power supply Engine switch off → Engine switch on (IG) Below 1 V → 11 to 14 V
      S29-8 (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.

  27. CHECK INFRARED RAY SENSOR (for Ottoman) 
    Fig 27: Identifying X13 Sensor Connector Terminal
    G06198328Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the X13 sensor connector.
    2. Measure the resistance and voltage according to the value(s) in the table below.
      TERMINAL DESCRIPTION

      Terminal No. (Symbols) Wiring Color Terminal Description Condition Specified Condition
      X13-5 (IG) - Body ground L - Body ground IG power supply Engine switch off → Engine switch on (IG) Below 1 V → 11 to 14 V
      X13-1 (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.

scientia non olet · About LEMON Manuals