Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Theft Deterrent System(for Hv Model): Improper Operation
DESCRIPTION If the alarm function of the theft deterrent system operates unintentionally, one of the following may be the cause. Short to ground in any door courtesy light switch circuit or the engine hood courtesy switch (hood lock assembly) circuit. Unstable main body ECU (multiplex network body E ...
