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Home >> Lexus >> 2020 >> UX 200 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Can Communication System (Symptom Tests) (2 Of 3) (Hybrid)) >> CAN COMMUNICATION SYSTEM (for HV Model) >> Check Bus 2 Line for Short to GND [10/2018 - 10/2019] >> Description

Check Bus 2 Line for Short to GND [10/2018 - 10/2019]: Description

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus UX 250h, 2023 Lexus UX 250h, 2022 Lexus UX 250h, 2021 Lexus UX 250h, and 2020 Lexus UX 250h. However, it is still accessible from the selected car via links, so may be relevant.

There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminal 18 (CA4H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 17 (CA4L) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3.

Symptom Trouble Area
No resistance exists between terminal 18 (CA4H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 17 (CA4L) 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
  • Hybrid vehicle control ECU
  • Central gateway ECU (network gateway ECU)
  • Inverter with converter assembly
  • ECM
  • Rear hybrid motor control assembly

    (for AWD)

  • No. 3 CAN junction connector
  • No. 6 CAN junction connector
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