DTC P0606-29: Backup Boost Converter "A" Control CPU Signal Invalid [10/2022 - ]: 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 engine stop and start ECU can detect open circuits when signals such as the boost, standby request or overheating signal cannot be sent to the backup boost converter control IC from the stop and start control IC in the engine stop and start ECU.
If a CPU duty malfunction is detected, the engine stop and start ECU stores DTC P0606-29.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| P0606-29 | Backup Boost Converter "A" Control CPU Signal Invalid | The following condition continues for 1 second or more (2 trip detection logic):
|
|
Comes on (For Mexico Models: Does not come on) | Does not come on (For Mexico Models: Blinks) | Stop and Start | A | SAE Code: P0606 |