Typical Enabling Conditions
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.
C12FA (CASE 1)
| Monitor runs whenever the following DTCs are not stored | None |
| All of the following conditions are met | A, B and C |
| A. Skid control ECU (brake booster with master cylinder assembly) state | Normal |
| B. Command to main relay | On |
| C. Either of the following conditions is met | a or b |
| a. Both of the following conditions are met | - |
| Power switch | Off |
| Brake system voltage 1 (VM1) | Higher than 6.92 V |
| b. All of the following conditions are met | - |
| Power switch | On (READY) |
| Brake system voltage 1 (VM1) | Higher than 6.92 V |
| IG1 voltage | Higher than 9.54 V |
C12FA (CASE 2)
| Monitor runs whenever the following DTCs are not stored | None |
| All of the following conditions are met | - |
| Skid control ECU (brake booster with master cylinder assembly) state | Initial check |
| Command to main relay | On |
| Brake system voltage 1 (VM1) | Higher than 6.92 V |
C12FB (CASE 1)
| Monitor runs whenever the following DTCs are not stored | None |
| Both of the following conditions are met | - |
| Skid control ECU (brake booster with master cylinder assembly) state | Normal |
| Command to main relay | Off |
C12FB (CASE 2)
| Monitor runs whenever the following DTCs are not stored | None |
| Both of the following conditions are met | - |
| Skid control ECU (brake booster with master cylinder assembly) state | Initial check |
| Command to main relay | Off |