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

PROBLEM SYMPTOMS TABLE

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.

Seat Belt Warning System

Symptom	Suspected Area	Link
Driver side seat belt warning light does not operate	Refer to the "Driver Side Seat Belt Warning Light does not Operate''
Front passenger side seat belt warning light does not operate	Refer to the "Front Passenger Side Seat Belt Warning Light does not Operate''
Rear seat belt warning light malfunction	Refer to the "Rear Seat Belt Warning Light Malfunction"
Seat belt warning light does not operate for all seats	Combination meter assembly
Seat belt warning buzzer does not operate	Check customized settings using the Techstream
Seat belt warning buzzer does not operate	Combination meter assembly

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Sfi System: HO2S Heater Control Bank 1 Sensor 1 Circuit Short to Battery (P003012,P003013,P101A9E)
DESCRIPTION The air fuel ratio sensor (sensor 1) generates current that corresponds to the actual air fuel ratio. This sensor current is used to provide the ECM with feedback so that it can control the air fuel ratio. The ECM determines the deviation from the stoichiometric air fuel ratio level, and ...

Toyota Avalon (XX50) 2019-2022 Owners Manual