Monitor Strategy
WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
| Related DTCs | P1644: Engine stop and start ECU internal starter relay circuit functional |
| Required Sensors/Components (Main) | Engine stop and start ECU |
| Required Sensors/Components (Related) | - |
| Frequency of Operation | Continuous |
| Duration | 1 second: Case2 0.2 seconds: Case1, Case3, Case4, Case5, Case6, Case7 |
| MIL Operation | Immediate |
| Sequence of Operation | None |