Power Source Mode does not Change to ON (READY) [09/2023 - 12/2023]: Description
WARNING: This page is about a different car, the 2024 Lexus TX 550h+ and 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
When the electrical key transmitter sub-assembly is in the cabin and the power switch is pressed, the certification ECU (smart key ECU assembly) receives a signal and changes the power source mode. Additionally, when the shift position is in P and the brake pedal is depressed, the hybrid control system can be started by pressing the power switch.
RELATED DATA LIST AND ACTIVE TEST ITEMS
| Problem Symptom | Data List and Active Test |
|---|---|
| Power source mode does not change to ON (READY) | Power Source Control
Smart Access
|