Test No. 8: While System Is In Alarming Condition, Headlights Do Not Flash; Or When System Is Not Set, Headlights Stay On

WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: To flash the headlights, the theft deterrent ECU requests the body control ECU to activate the headlights across the multiplex communication bus. The headlights are controlled and monitored by the body control ECU. For testing procedures covering headlight system, see BODY CONTROL SYSTEMS - AVALON article under COMMUNICATION DEVICES in ACCESSORIES & EQUIPMENT.