Fail-Safe Chart
WARNING: This page is about a different car, the 2005 Lexus RX 330. However, it is still accessible from the selected car via links, so may be relevant.
- Light control computer (HID)
- Headlamp Leveling ECU Assy
HINT:
The Headlamp Leveling Control ECU performs fail-safe when detecting the following troubles.
TROUBLE CONDITION CHARTTrouble Area Condition Warning indicator light 5. Headlamp leveling actuator circuit is open Stop leveling operation Light up 6. Headlamp leveling actuator circuit is short Stop leveling operation Light up 7. Vehicle speed sensor signal error Controlling continues Light up 8. Height control sensor signal level error Stop leveling operation Light up 9. Headlamp leveling actuator high voltage Stop leveling operation Goes off 10. Pitch angle calculation error (w/ Air Suspension System) Stop leveling operation Light up Recovery condition: Ignition switch off or signal level error cancellation.
- Headlamp Swivel ECU Assy
HINT:
HINT: The Headlamp Swivel ECU performs fail-safe when detecting the following troubles. The AFS OFF indicator light on the combination meter comes on at the same time.
TROUBLE CONDITION CHARTTrouble Area Headlamp Leveling Motor Swivel Motor AFS OFF indicator light Vehicle speed sensor signal malfunction Controlling continues Stops operation after returning to initial position Blinks ((1)) Vehicle height signal malfunction Stops operation after returning to initial position (Fail at higher than initial position) Stops at current condition (Fail at lower than initial position) Stops operation after returning to initial position Blinks ((1)) Leveling actuator malfunction Stops at current condition Stops operation after returning to initial position Blinks ((1)) Steering sensor malfunction Lowers by 0.8° than current position and then re-starts controlling Stops at current condition and then returning to initial position after 10 seconds Blinks ((1)) Communication signal malfunction Controlling continues Stops operation after returning to initial position Blinks ((1)) Swivel actuator action malfunction Lowers by 0.8° than initial position Stops operation after returning to initial position (Stops at current condition when unable to operate) Blinks ((1)) Swivel actuator communication signal malfunction Lowers by 0.8° than initial position Stops operation after returning to initial position (Stops at current condition when unable to operate) Blinks ((1)) (1) *1: Blinks 1/second