Typical Enabling Conditions
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.
ALL
| Monitor runs whenever the following DTCs are not stored | C1021 (Case 1): Brake system voltage input out of range low U0125: Lost communication with multi-axis acceleration sensor module |
CASE 1
| All of the following conditions are met | - |
| Dealer Mode | Off |
| Acceleration sensor zero point learning command reception presence | Off |
| Vehicle speed | 40 km/h (24.85 mph) or more |
| IGR voltage | 3.5 V or more |
CASE 2
| Both of the following conditions are met | - |
| Learning of zero position | Complete |
| IGR voltage | 3.5 V or more |
CASE 3
| All of the following conditions are met | - |
| Last learning of zero position | Not complete |
| Current learning of zero position | Complete |
| IGR voltage | 3.5 V or more |