Toyota Avalon Service & Repair Manual: Lost Communication with ECM / PCM "A" (U0100,U0126,U0129,U0140,U0163,U0233)

DESCRIPTION

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

HINT:

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

Parking Assist ECU

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

U0100

Lost Communication with ECM / PCM "A"

Lost Communication with ECM

CAN communication system

Parking assist ECU

U0126

Lost Communication with Steering Angle Sensor Module

Lost communication with steering sensor

CAN communication system

Parking assist ECU

U0129

Lost Communication with Brake System Control Module

Lost communication with skid control ECU

CAN communication system

Parking assist ECU

U0140

Lost Communication with Body Control Module

Lost communication with main body ECU (multiplex network body ECU)

CAN communication system

Parking assist ECU

U0163

Lost Communication with Navigation Control Module

Lost communication with radio and display receiver assembly

CAN communication system

Parking assist ECU

U0233

Lost Communication with Blind Spot Monitor Master Module

Lost communication with blind spot monitor sensor RH

CAN communication system

Parking assist ECU

Television Camera Assembly

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

U0100

Lost Communication with ECM / PCM "A"

Lost Communication with ECM

CAN communication system

Television camera assembly

U0126

Lost Communication with Steering Angle Sensor Module

Lost communication with steering sensor

CAN communication system

Television camera assembly

U0129

Lost Communication with Brake System Control Module

Lost communication with skid control ECU

CAN communication system

Television camera assembly

U0140

Lost Communication with Body Control Module

Lost communication with main body ECU (multiplex network body ECU)

CAN communication system

Television camera assembly

U0163

Lost Communication with Navigation Control Module

Lost communication with radio and display receiver assembly

CAN communication system

Television camera assembly

U0233

Lost Communication with Blind Spot Monitor Master Module

Lost communication with blind spot monitor sensor RH

CAN communication system

Television camera assembly

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs.

Chassis > Panoramic View Monitor > Clear DTCs Chassis > Parking Assist Camera > Clear DTCs

(b) Recheck for DTCs and check that no DTCs are output.

Chassis > Panoramic View Monitor > Trouble Codes Chassis > Parking Assist Camera > Trouble Codes

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 the troubleshooting again, even if the DTC was not output when rechecking for DTCs.

    Click here

Result

Proceed to

DTCs are output

A

No DTCs are output

B

A

GO TO CAN COMMUNICATION SYSTEM

B

USE SIMULATION METHOD TO CHECK

    Control Module Communication Bus Off (U0073,U0265,U1110)

    CAN Communication Failure (Message Registry) (U1000)

    See More:

    Toyota Avalon Owners Manual > Other interior features: Safety Connect
    Safety Connect is a subscription-based telematics service that uses Global Positioning System (GPS) data and embedded cellular technology to provide safety and security features to subscribers. Safety Connect is supported by Toyota's designated response center, which operates 24 hours per day, 7 da ...

    Toyota Avalon Owners Manual

    Toyota Avalon Service & Repair Manual

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