Fail-Safe Chart [10/2018 - 08/2021]
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.
| DTC | Trouble Area | Brake System Warning Light (Yellow) | Parking Brake Indicator Light (Red) | Fail-safe Deactivation Condition |
|---|---|---|---|---|
| C1245 | Deceleration sensor data malfunction | Illuminates | Normal | 20 seconds after power switch turned off |
| C13A0 | Open in power supply relay circuit | Illuminates | Normal* | 20 seconds after power switch turned off |
| C13A1 | Short in power supply relay circuit | Illuminates | Normal | 20 seconds after power switch turned off |
| C13A2 | Power switch malfunction | Illuminates | Normal | 20 seconds after power switch turned off |
| C13A5 | Parking brake motor (Parking brake actuator assembly) current monitor malfunction | Illuminates | Normal* | 20 seconds after power switch turned off |
| C13A6 | Parking brake motor (Parking brake actuator assembly) open or short malfunction | Illuminates | Normal* | 20 seconds after power switch turned off |
| C13A7 | Parking brake actuator assembly malfunction (jamming, spinning, repeated slipping) | Illuminates | Normal* | Parking brake actuator assembly normal |
| C13A9 | Brake Control System Malfunction | Illuminates | Normal | Wheel speed of 1 wheel or more received normally |
| C13AA | Electric parking brake high temperature | Does not illuminate | Blinks | Wait 1 minute |
| C13AE | System information not received malfunction | Illuminates | Normal | System information received |
| C13B0 | ECU malfunction | Illuminates | Normal* | Parking brake ECU (brake actuator assembly) normal |
| C13B4 | Electric parking brake switch open or short circuit malfunction | Illuminates | Blinks | After returning to normal condition, turn power switch again |
| U0073 | CAN communication system malfunction | Illuminates | Normal | Power switch off |
| U0100 | SFI system communication malfunction | Illuminates | Normal | Communication normal, power switch off |
| U0124 | Deceleration sensor communication malfunction | Illuminates | Normal | Communication normal, power switch off |
| U0129 | Brake system communication malfunction | Illuminates | Normal | Communication normal, power switch off |
| U0293 | Hybrid vehicle control ECU communication malfunction | Illuminates | Normal | Communication normal, power switch off |
- *: The parking brake indicator light blinks (red) if the electric parking brake switch assembly is pulled or pushed.