Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: System Diagram

SYSTEM DIAGRAM

Communication Table

Transmitting ECU (Transmitter)	Receiving ECU	Signal	Communication Method
Airbag ECU Assembly	Occupant Detection ECU	Crash detection signal Acceleration signal	CAN
Airbag ECU Assembly	ECM	Crash detection signal
Airbag ECU Assembly	Combination Meter Assembly	SRS warning light on demand signal
Occupant Detection ECU	Airbag ECU Assembly	Occupant classification system failure signal Occupant classification system zero point error signal Occupant state for front passenger signal Buckle switch state of front passenger signal

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Smart Key System(for Entry Function, Gasoline Model): Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Smart Key System (for Entry Function, Gasoline Model) DTC No. Detection Item Link B27A1 Open in Driver Side Electrical Antenna Circuit B27A2 Open in Front Passenger Side Electrical Antenna Circuit B27A7 Open in Inside Luggage Compartment Electrical Key Oscillator Circui ...

Toyota Avalon (XX50) 2019-2022 Owners Manual