CRUISE CONTROL: FRONT CAMERA SYSTEM (for HV Model): U0101,U0123,U0129,U0142,U0293; Lost Communication with TCM; 2019 - 2021 MY Avalon HV [04/2018

Last Modified: 08-21-2023	6.11:8.1.0	Doc ID: RM100000001BE35
Model Year Start: 2019	Model: Avalon HV	Prod Date Range: [04/2018 - 08/2021]
Title: CRUISE CONTROL: FRONT CAMERA SYSTEM (for HV Model): U0101,U0123,U0129,U0142,U0293; Lost Communication with TCM; 2019 - 2021 MY Avalon HV [04/2018 - 08/2021]

DTC

U0101

Lost Communication with TCM

DTC

U0123

Lost Communication with Yaw Rate Sensor Module

DTC

U0129

Lost Communication with Brake System Control Module

DTC

U0142

Lost Communication with Body Control Module "B"

DTC

U0293

Lost Communication with HV ECU

DESCRIPTION

When a malfunction is detected between various ECUs and sensors, these DTCs are stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
U0101	Lost Communication with TCM	While the vehicle is being driven at 1 km/h or 1 mph or more, a communication error between the TCM (hybrid vehicle control ECU) and the forward recognition camera is detected for approximately 5 seconds or more.	CAN communication system
U0123	Lost Communication with Yaw Rate Sensor Module	While the vehicle is being driven at 1 km/h or 1 mph or more, a communication error between the yaw rate sensor (airbag ECU assembly) and the forward recognition camera is detected for approximately 5 seconds or more.	CAN communication system
U0129	Lost Communication with Brake System Control Module	2 seconds after the power switch is turned on (IG), a communication error between the skid control ECU (brake booster with master cylinder assembly) and the forward recognition camera is detected for approximately 5 seconds or more.	CAN communication system
U0142	Lost Communication with Body Control Module "B"	2 seconds after the power switch is turned on (IG), a communication error between the main body ECU (multiplex network body ECU) and the forward recognition camera is detected for approximately 5 seconds or more.	CAN communication system
U0293	Lost Communication with HV ECU	2 seconds after the power switch is turned on (IG), a communication error between the hybrid vehicle control ECU and the forward recognition camera is detected for approximately 5 seconds.	CAN communication system

1.	CHECK FOR DTCs

(a) Clear the DTCs.

(b) Make sure that the DTC detection conditions are met.

HINT:

If the detection conditions are not met, the system cannot detect the malfunction.

Result	Proceed to
DTC U0101, U0123, U0129, U0142 and U0293 are not output	A
DTC U0101, U0123, U0129, U0142 or U0293 is output	B