Check Bus 5 Lines for Short Circuit [10/2018 - 07/2022]: 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 the CAN main bus lines and/or CAN branch lines when the resistance between terminals 15 (CA5H) and 16 (CA5L) of the central gateway ECU (network gateway ECU) is below 54 Ω.
| Symptom |
Trouble Area |
| Resistance between terminals 15 (CA5H) and 16 (CA5L) of the central gateway ECU (network gateway ECU) is below 54 Ω. |
- Short in CAN main bus lines
- Short in CAN branch lines
- Central gateway ECU (network gateway ECU)
- Outer mirror control ECU assembly RH
(w/ Seat Position Memory System)
- No. 1 Headlight ECU sub-assembly RH
(w/ Automatic Headlight Beam Level Control System)
- Position control ECU assembly LH
(w/ Seat Position Memory System)
- Outer mirror control ECU assembly LH
(w/ Seat Position Memory System)
- Multiplex network door ECU
(w/ Power Back Door)
- Multiplex tilt and telescopic ECU
(for Power Tilt and Power Telescopic Steering Column)
- Meter mirror sub-assembly
(w/ Headup Display)
- Main body ECU (multiplex network body ECU)
- Certification ECU (smart key ECU assembly)
- Air conditioning amplifier assembly
- No. 1 Headlight ECU sub-assembly LH
(w/ Automatic Headlight Beam Level Control System)
- Combination meter assembly
- No. 1 CAN junction connector
- No. 6 CAN junction connector
- No. 9 CAN junction connector
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