DESCRIPTION When "Change Wheel" is selected on the multi-information display and the "OK" switch (steering pad switch assembly) is pushed and held, the system enters ID registration mode and the tire pressure warning light blinks 3 times. The main body ECU (multiplex network body ECU) receives signals from the combination meter assembly via the CAN communication line. WIRING DIAGRAM  PROCEDURE
(a) Perform Test Mode Procedure (Tire Pressure Warning Reset Switch Check (DTC C2198)). Click here
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Can Communication System(for Gasoline Model): Diagnosis System
DIAGNOSIS SYSTEM CHECK FOR INSTALLED SYSTEMS (ECUS AND SENSORS) THAT USE CAN COMMUNICATION (a) The systems (ECUs and sensors) that use CAN communication vary depending on the vehicle and optional equipment. Check which systems (ECUs and sensors) are installed to the vehicle. (1) Techstream display a ...
