DTC B1243: GSW Terminal Circuit Malfunction [06/2018 - ]: Description
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2024 Lexus ES 350, 2024 Lexus ES 250, 2023 Lexus ES 350, 2023 Lexus ES 250, and 2022 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
If the collision door lock release function does not operate normally, or an open or short in the GSW input circuit of the main body ECU (multiplex network body ECU) is detected, DTC B1243 will be stored.
HINT:
If DTC B1243 is stored, the automatic door lock function, and collision door lock release function will be prohibited.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B1243 | GSW Terminal Circuit Malfunction | A malfunction occurs in the GSW input circuit of the main body ECU (multiplex network body ECU). |
|