Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Vehicle Information Unmatched (C168D)

DESCRIPTION

If the vehicle information stored in the main body ECU (multiplex network body ECU) which is sent via CAN communication during the clearance warning ECU assembly self-diagnosis does not match that of clearance warning ECU assembly, DTC C168D is stored.

CAUTION / NOTICE / HINT

NOTICE:

• After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

  Click here

• After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).

  Click here

• When continuing with the inspection, confirm that the necessary procedures (adjustment, calibration, initialization or registration) have been completed before proceeding.

PROCEDURE

(a) Perform the following procedure to register the vehicle information.

Click here

NEXT

(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 4 seconds or more before checking for DTCs.

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

(c) Recheck for DTCs.

HINT:

If DTC C168D is still output after registering the vehicle information 3 times, replace the clearance warning ECU assembly.

A

REPLACE CLEARANCE WARNING ECU ASSEMBLY

B

USE SIMULATION METHOD TO CHECK