Shut Down Signal Circuit [08/2023 - ]: Description
WARNING: This page is about a different car, the 2025 Lexus RX 450h+ and 2024 Lexus RX 450h+. However, it is still accessible from the selected car via links, so may be relevant.
The cause of the malfunction may be a shutdown signal.
Check whether there is a shutdown signal +B short circuit.
RELATED PARTS CHECK
| Area | Inspection |
|---|---|
| HSDN terminal | Check that the HSDN terminal voltage decreases to check for an open or short circuit while READY off (IG ON). |
| Hybrid vehicle control ECU, inverter, wire harness | Check for open or short circuit in hybrid vehicle control ECU, inverter and wire harness. |