Installation and Calibration of Clearance Sensor ECU - DTC C1AEC and C1AED?

Tiny
ABDOURAHMAN
  • MEMBER
  • 2021 TOYOTA LANDCRUISER
  • 6 CYL
  • TURBO
  • AUTOMATIC
  • 51,579 MILES
Dear expert,

I hope this question finds you well. My name is ABDOURAHMAN, and I'm reaching out to you as an experienced professional in the field of automobiles. I recently encountered an issue with my vehicle, and I believe your expertise can provide valuable guidance.
Upon conducting a diagnostic test, I received the Diagnostic Trouble Codes (DTC) C1AEC for the front sensor communication circuit and C1AED for the rear sensor communication circuit. After thorough analysis, I am inclined to believe that the issue may be related to the ECU of the clearance sensor.
In response to this, I have ordered a new ECU for the clearance sensor. However, I am now seeking assistance on the installation process and calibration procedure. The message "Check your clearance sensor" is persistently displayed on the screen, indicating the need for further attention.
I would greatly appreciate it if you could provide detailed instructions or insights on how to properly install the new ECU and carry out the calibration process. Any specific steps or precautions you can share would be immensely helpful in resolving this issue.
Your expertise in this matter is highly valued, and I am confident that your guidance will contribute significantly to the successful resolution of this problem. If you require any additional information about the vehicle or the components involved, please do not hesitate to let me know.
Thank you very much for your time and assistance. I look forward to hearing from you at your earliest convenience.
Best regards,
ABDOURAHMAN
Monday, November 20th, 2023 AT 9:46 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,810 POSTS
Hi,

I attached the directions I have to replace the unit. Keep in mind, there could be a wiring-related issue and the ECU may not be faulty.

Also, I went from start to finish in two different manuals. Neither provides a reprogramming procedure. I don't believe there is one.

Let me know if this helps.

Take care and Happy Thanksgiving.

Joe

See pics below.
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Wednesday, November 22nd, 2023 AT 11:02 PM

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