Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

If the auxiliary battery voltage is low, the mirror heater function may not operate.

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Power Mirror Control System

Symptom	Suspected Area	Link
Electrical remote control mirror does not operate	Outer mirror switch assembly
	Outer rear view mirror assembly LH
	Outer rear view mirror assembly RH
	Wire harness or connector	-
Mirror heater does not operate	Proceed to "Mirror Heater does not Operate with Rear Defogger Switch"

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Panoramic View Monitor System(for Gasoline Model): Open or Short Circuit in Back Camera Signal (C1622)
DESCRIPTION DTC C1622 is stored if the parking assist ECU judges as a result of its self check that the signals or signal lines between the parking assist ECU and the television camera assembly are not normal. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from C1622 Open or ...

Toyota Avalon (XX50) 2019-2022 Owners Manual