LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2021 >> ES 350 Luxury >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Can Communication System (Except Hybrid) - Circuit Tests (4 Of 4) >> CAN COMMUNICATION SYSTEM (for Gasoline Model) >> Check Bus 5 Line for Short to GND [07/2019 - 10/2019] >> Description

Check Bus 5 Line for Short to GND [07/2019 - 10/2019]: Description

There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminal 15 (CA5H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 16 (CA5L) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3.

Symptom Trouble Area
There is no resistance between terminal 15 (CA5H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 16 (CA5L) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3.
  • Short to ground in CAN main bus line
  • Short to ground in CAN branch line
  • Central gateway ECU (network gateway ECU)
  • Outer mirror control ECU assembly RH

    (w/ Seat Position Memory System)

  • Headlight ECU sub-assembly RH
  • Position control ECU assembly LH

    (w/ Seat Position Memory System)

  • Outer mirror control ECU assembly LH

    (w/ Seat Position Memory System)

  • Luggage closer motor assembly

    (w/ Power Trunk Lid System)

  • Multiplex tilt and telescopic ECU

    (w/ Power Tilt and Power Telescopic System)

  • Meter mirror sub-assembly

    (w/ Headup Display System)

  • Main body ECU (multiplex network body ECU)
  • Certification ECU (smart key ECU assembly)
  • Air conditioning amplifier assembly
  • Headlight ECU sub-assembly LH
  • Combination meter assembly
  • No. 5 CAN junction connector
  • No. 8 CAN junction connector
  • No. 1 junction connector