Toyota Yaris: Window Defogger System / Problem Symptoms Table

HINT:

• Inspect the fuses and relays related to this system before inspecting the suspected areas below.
• 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.

Operation Check

OPERATION CHECK CHECK WINDOW DEFOGGER SYSTEM (a) Turn the ignition switch to ON. (b) Check that the rear window defogger wire becomes warm by operating the rear window defogger switch of the air conditioning control assembly...

Terminals Of Ecu

TERMINALS OF ECU CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY *1 Power Distribution Box Assembly *2 Main Body ECU (Multiplex Network Body ECU) (a) Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly...

Other information:

Toyota Yaris XP210 (2020-2026) Owner's Manual: Immobilizer System

The immobilizer system allows the engine to start only with a key the system recognizes. If someone attempts to start the engine with an unrecognized key, the engine will not start, thereby helping to prevent vehicle theft. If you have a problem with the immobilizer system or the key, consult your Toyota dealer...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Initialization

INITIALIZATION SERVO MOTOR INITIALIZATION (a) Press the OFF switch. (b) According to the GTS display, perform servo motor initialization. Body Electrical > Air Conditioner > Utility Tester Display Servomotor Initialization HINT: When initialization is started, the AUTO switch indicator will illuminate and then will turn off when initialization has completed...