Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Lost Communication with Multi-axis Acceleration Sensor Module (U0125,U0129)

DESCRIPTION

The occupant detection ECU sends/receives signals to/from each ECU via CAN communication.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
U0125	Lost Communication with Multi-axis Acceleration Sensor Module	CAN communication error between occupant detection ECU and acceleration sensor (CAN communication system malfunction)	CAN communication system
U0129	Lost Communication with Brake System Control Module	CAN communication error between occupant detection ECU and skid control ECU (CAN communication system malfunction)	CAN communication system

CAUTION / NOTICE / HINT

Refer to troubleshooting in CAN Communication System.

Click here

PROCEDURE

1.	GO TO CAN COMMUNICATION SYSTEM

(a) Go to CAN communication system.

Click here

END

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Electronically Controlled Brake System(for Hv Model): Motor Drive Permission Malfunction (C1451)
DESCRIPTION If air bleeding has not been performed, the skid control ECU (brake booster with master cylinder assembly) stores DTC C1451 to prevent the entry of air due to pump motor operation. DTC C1451 is stored when Motor Invalid is selected, the system will not return to normal until the air blee ...

Toyota Avalon (XX50) 2019-2022 Owners Manual