Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Occupant Classification System

DTC No.	Detection Item	Link
B1771	Passenger Side Buckle Switch Circuit Malfunction
B1780	Front Occupant Classification Sensor LH Circuit Malfunction
B1782	Rear Occupant Classification Sensor LH Circuit Malfunction
B1785	Front Occupant Classification Sensor LH Collision Detection
B1787	Rear Occupant Classification Sensor LH Collision Detection
B1795	Occupant Classification ECU Malfunction
B1798	Yaw Rate Sensor Module Malfunction
B1799	Vehicle Stability Control ECU Malfunction
U0125	Lost Communication with Multi-axis Acceleration Sensor Module
U0129	Lost Communication with Brake System Control Module

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Safety Connect System(for Gasoline Model): Manual Button Malfunction (B15C5)
DESCRIPTION This DTC is set when the DCM (Telematics Transceiver) detects an open or short circuit in the manual (SOS) switch. DTC No. Detection Item DTC Detection Condition Trouble Area B15C5 Manual Button Malfunction Open or short circuit in manual (SOS) switch is detected. DCM (Telematics Transce ...

Toyota Avalon (XX50) 2019-2022 Owners Manual