Component Operating Range
WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
C141C (CASE 1)
| All of the following conditions are met | - |
| Brake system voltage 1 | Higher than 7.3 V and less than 23.2 V |
| Output duty order value (command to motor relay port) | 100% |
| Motor circuit current | Less than 264.00 A |
C141C (CASE 2 TO 9)
| Both of the following conditions are met | A and B |
| A. All of the following conditions are met at the ECU status (last IG ON timing final) | - |
| Brake system voltage fail (C12FA, C12FB) | Not detected |
| Brake booster motor fail (C141C, C141D, C141E, C141F) | Not detected |
| Brake pressure control solenoid fail (C14F4, C14FD, C150A, C1510) | Not detected |
| B. All of the following conditions are met at the ECU status (pre main) | - |
| Brake system voltage fail (C121F, C12FA, C12FB) | Not detected |
| Brake booster motor fail (C141C) | Not detected |
| Brake pressure control solenoid fail (C14F3, C14F4, C14FC, C14FD, C1509, C150A, C150F, C1510) | Not detected |
C141C (CASE 10)
| All of the following conditions are met | A, B, C, D, E, F, G, H, I and J |
| A. Brake system voltage 1 | Less than 23.2 V |
| B. MRI1 voltage | 5.7 V or more |
| C. Motor relay input signal permission | On |
| D. Command to motor relay | On |
| E. Motor duty output order value | 100% |
| F. Command to reverse battery protection MOS | Off |
| G. Command to motor fail-safe relay | Off |
| H. ASIC output permission | Off |
| I. All of the following conditions are met at the ECU status (last IG ON timing final) | - |
| Brake system voltage fail (C12FA, C12FB) | Not detected |
| Brake booster motor fail (C141C, C141D, C141E, C141F) | Not detected |
| Brake pressure control solenoid fail (C14F4, C14FD, C150A, C1510) | Not detected |
| J. All of the following conditions are met at the ECU status (pre main) | - |
| Brake system voltage fail (C121F, C12FA, C12FB) | Not detected |
| Brake booster motor fail (C141C) | Not detected |
| Brake pressure control solenoid fail (C14F3, C14F4, C14FC, C14FD, C1509, C150A, C150F, C1510) | Not detected |