Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Control Module Communication Bus Off (U0073,U0265,U1110)

DESCRIPTION

These DTCs are stored if there is a malfunction in the CAN communication system connected to the parking assist ECU.

HINT:

If CAN communication system DTCs are stored, they may also be stored in other systems.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

U0073

Control Module Communication Bus Off

Control module communication bus off

CAN communication system

Parking assist ECU

U0265

Lost Communication with Image Processing Sensor A

Lost Communication with television camera assembly

CAN communication system

Parking assist ECU

U1110

Lost Communication with Clearance Warning ECU

Lost communication with clearance warning ECU assembly

CAN communication system

Parking assist ECU

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs.

Chassis > Panoramic View Monitor > Clear DTCs

(b) Check for DTCs.

Chassis > Panoramic View Monitor > Trouble Codes

Result

Proceed to

DTCs are output

A

No DTCs are output

B

HINT:

  • If CAN communication system DTCs are stored, they may also be stored in other systems.
  • If the CAN communication system has been inspected and repaired in other systems, the DTCs will not be output when rechecking for DTCs.
  • If these DTCs are output frequently, duplicate the conditions that cause the problem symptoms and perform troubleshooting again, even if the DTC was not output when rechecking for DTCs.

    Click here

A

GO TO CAN COMMUNICATION SYSTEM

B

USE SIMULATION METHOD TO CHECK

    Lost Communication with Panoramic View Monitor Control Module (U023B)

    Lost Communication with ECM / PCM "A" (U0100,U0126,U0129,U0140,U0163,U0233)

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