Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: CAN Communication Failure (Message Registry) (U1000)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Audio, Visual, Telematics / Park Assist / Monitoring / Intelligent Clearance Sonar System(for Gasoline Model) / CAN Communication Failure (Message Registry) (U1000)

DESCRIPTION

When the clearance warning ECU assembly determines that the CAN communication circuit is malfunctioning during self diagnosis, DTC U1000 is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
U1000	CAN Communication Failure (Message Registry)	CAN communication circuit malfunction is detected	Clearance warning ECU assembly

PROCEDURE

1.	CHECK FOR DTC

(a) Using the Techstream, check for DTCs according to the prompts on the screen.

HINT:

After turning the engine switch from off to on (IG), wait 10 seconds or more before checking for DTCs.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

(b) Clear the DTCs according to the screen on the Techstream.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

OK:

DTC U1000 is not output.

HINT:

If DTC U1000 is not output after clearing the DTCs, an intermittent CAN communication circuit malfunction is suspected.
If DTC U1000 is output frequently, replace the clearance warning ECU assembly, even though the DTC was not output when rechecking for DTCs.
Click here

USE SIMULATION METHOD TO CHECK

REPLACE CLEARANCE WARNING ECU ASSEMBLY

Lost Communication with Blind Spot Monitor Slave Module (U0232,U0233)

Utility

See More:

Toyota Avalon (XX50) 2019-2022 Owners Manual > Operation of each component: Key information
Keys The keys The following keys are provided with the vehicle. Electronic keys Operating the smart key system Operating the wireless remote control function Mechanical keys Key number plate Wireless remote control Locks all the doors Unlocks all the doors Opens the windows*2 and moon roof*1, 2 Open ...