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

PROBLEM SYMPTOMS TABLE

NOTICE:

Before performing troubleshooting, change the grille shutter control mode to maintenance mode.
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If the swing grille actuator assembly has been replaced with a new one, perform initialization and change the grille shutter control mode.
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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.

Symptom	Suspected Area	Link
Grille shutter does not operate	Proceed to "Grille Shutter does not Operate"
Abnormal noise occurs during grille shutter operation	Check for ice, etc. around the shutters and links	-
	Swing grille actuator assembly
	Radiator shutter sub-assembly

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Intuitive Parking Assist System(for Gasoline Model): Front Right Center Sensor (C1AE3)
DESCRIPTION The front center ultrasonic sensor RH is installed to the front bumper. The clearance warning ECU assembly detects obstacles based on signals received from the front center ultrasonic sensor RH. If the front center ultrasonic sensor RH has an open circuit or other malfunction, it will no ...

Toyota Avalon (XX50) 2019-2022 Owners Manual