Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Steering Angle Midpoint Initial Setting Incomplete (C1AEA)

DESCRIPTION

When the clearance warning ECU assembly detects that the steering angle neutral point memorization is incomplete during self diagnosis, C1AEA 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.

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

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PROCEDURE

(a) Perform steering angle neutral point memorization.

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NEXT

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

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

(c) Recheck for DTCs.

HINT:

• If DTC C1AEA is output, perform steering angle neutral point memorization.
• If DTC C1AEA is still output after performing steering angle neutral point memorization 3 times, replace the clearance warning ECU assembly.

A

REPLACE CLEARANCE WARNING ECU ASSEMBLY

B

USE SIMULATION METHOD TO CHECK