Monitor Description
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.
The ECM continuously monitors its internal ICs and the monitor IC. If the monitor IC is abnormal, the ECM illuminates the MIL and stores DTC P0607-47. If an internal IC is abnormal, the ECM illuminates the MIL and stores DTC P0607-87.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|
| P0607-47 | Control Module Performance Bank 1 Watchdog/Safety MCU Failure | ECM monitor IC malfunction (1 trip detection logic). | ECM | Comes on | Engine | A |
|
| P0607-87 | Control Module Performance Bank 1 Missing Message | ECM internal IC malfunction (1 trip detection logic). | ECM | Comes on | Engine | A |
|