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

READ NEXT:

 ICS Detection Area Adjustment Incomplete (C1AF0)

DESCRIPTION When ICS detection area adjustment is incomplete, the clearance warning ECU assembly stores DTC C1AF0. DTC No. Detection Item DTC Detection Condition Trouble Area C1AF0 ICS

 Fr Sensor Initialization Incomplete (C1AF3)

DESCRIPTION When it is judged that the front sensors have not been initialized, the clearance warning ECU assembly stores DTC C1AF3. DTC No. Detection Item DTC Detection Condition Trouble Are

 Rr Sensor Initialization Incomplete (C1AF4)

DESCRIPTION When it is judged that the rear sensors have not been initialized, the clearance warning ECU assembly stores DTC C1AF4. DTC No. Detection Item DTC Detection Condition Trouble Area

SEE MORE:

 Disposal

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 Installation

INSTALLATION PROCEDURE 1. INSTALL WINDSHIELD WASHER JAR ASSEMBLY (w/ Headlight Cleaner System) (a) Install the level warning switch assembly as shown in the illustration. NOTICE: Make sure that the protrusion of the level warning switch assembly is between the 2 markings. *a Protru

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