Lexus NX: 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.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1AEA

Steering Angle Midpoint Initial Setting Incomplete

Steering angle neutral point memorization incomplete

  • Steering sensor steering angle neutral point memorization incomplete
  • Clearance warning ECU assembly

CAUTION / NOTICE / HINT

NOTICE:

  • After the power switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

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  • When disconnecting and reconnecting the auxiliary battery

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    HINT:

    When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

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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

1.

PERFORM CALIBRATION

(a) Perform steering angle neutral point memorization.

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NEXT

2.

CHECK FOR DTC

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

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Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

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

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Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs

(c) Recheck for DTCs.

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Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

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.

Result

Proceed to

DTC C1AEA is output

A

DTC C1AEA is not output

B

A

REPLACE CLEARANCE WARNING ECU ASSEMBLY

B

USE SIMULATION METHOD TO CHECK

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