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 > Airbag System(for Gasoline Model): Short in Side Squib (RH) Circuit (B1820-B1823)
DESCRIPTION The front side squib RH circuit consists of the airbag ECU assembly and front seat airbag assembly RH. The airbag ECU assembly uses this circuit to deploy the airbag when deployment conditions are met. These DTCs are stored when a malfunction is detected in the front side squib RH circui ...

Toyota Avalon (XX50) 2019-2022 Owners Manual