Toyota Avalon Service & Repair Manual: CAN Communication Failure (Message Registry) (U1000)

DESCRIPTION

If DTC U1000 is stored frequently, duplicate the problem symptoms and perform troubleshooting again even if the DTC is not output when rechecking for DTCs.

Parking Assist ECU

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

U1000

CAN Communication Failure (Message Registry)

ECU malfunction

Parking assist ECU

Parking assist ECU

Television Camera Assembly

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

U1000

CAN Communication Failure (Message Registry)

ECU malfunction

Television camera assembly

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) Check for DTCs.

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

Result

Proceed to

No DTCs are output

A

DTC U1000 is output ("Panoramic View Monitor")

B

DTC U1000 is output ("Parking Assist Camera")

C

HINT:

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

USE SIMULATION METHOD TO CHECK

B

REPLACE PARKING ASSIST ECU

C

REPLACE TELEVISION CAMERA ASSEMBLY

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

    Parking Assist Ecu

    See More:

    Toyota Avalon Service & Repair Manual > Can Communication System(for Hv Model): Check Bus 4 Line for Short to +B
    DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 22 (CA2H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 7 (CA2L) of the central gateway ECU (network gateway ECU) and termin ...

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    Toyota Avalon Service & Repair Manual

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