Fail-Safe Function
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
The Headlight Leveling Control ECU performs the fail-safe when detecting following troubles.
At this it lights the warning light ("HEADLIGHT LEVELING") on the combination meter (multi-information display
FAIL-SAFE FUNCTION
| Trouble Area | System |
|---|---|
| 1. Headlight leveling actuator |
|
| 2. Vehicle speed sensor | One vehicle speed signal is 0km/h and the other is 10km/h (8 MPH) or more. |
| 3. Generator |
|
| 4. Height control sensor | Signal lever error |
| 5. Pitch angle calculation error | Signal lever error |
Recovery condition (The warning light goes off.)
- In case of 1, 2 and 3: ignition switch OFF
- In case of 4 and 5: ignition switch OFF or signal lever error cancellation