AutoCodes – Generic – C1AED

C1AED Code - Rear Sensor Communication Circuit

Quick Answer

This Diagnostic Trouble Code (DTC) is stored when there is an open or short circuit in the communication line between the rear sensors and ECU, or when there is a malfunction in a rear sensor. Common causes include Faulty Rear Ultrasonic Sensor Circuit, Faulty Clearance Warning ECU Assembly. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
C1AED indicates Rear Sensor Communication Circuit.
Common causes
Common causes include Faulty Rear Ultrasonic Sensor Circuit, Faulty Clearance Warning ECU Assembly.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 991
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 14, 2023
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Code C1AED Description

This Diagnostic Trouble Code (DTC) is stored when there is an open or short circuit in the communication line between the rear sensors and ECU, or when there is a malfunction in a rear sensor.
OBDII Code C1AED - Rear Sensor Communication Circuit - AutoCodes.com
C1AED Code - Rear Sensor Communication Circuit

What are the Possible Causes of the DTC C1AED?

  • Faulty Rear Ultrasonic Sensor Circuit
  • Faulty Clearance Warning ECU Assembly

How to Fix the DTC C1AED?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1AED code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C1AED Code

1. What does the OBDII code C1AED mean?

C1AED indicates a communication fault in the rear sensor circuit, often related to parking or proximity sensors.

2. What are the common symptoms of code C1AED?

Symptoms may include malfunctioning rear parking sensors, warnings on the dashboard, or the parking assist system not functioning properly.

3. What causes the C1AED code to appear?

Common causes include damaged wiring, faulty rear sensors, connector issues, or a malfunction in the parking assist control module.

4. Can I still drive my car with a C1AED code?

Yes, the vehicle can still be driven, but features like parking assist or rear object detection may not work.

5. How do I diagnose a C1AED fault code?

Inspect the wiring and connectors for damage, test the rear sensors for proper function, and use a scan tool to verify communication with the parking assist module.

6. How do I fix the C1AED code?

Repairs may involve replacing damaged wiring, cleaning or reconnecting connectors, or replacing a faulty rear sensor or control module.

7. Can a dead sensor trigger the C1AED code?

Yes, a malfunctioning or dead rear sensor is a common cause of this code.

8. How much does it cost to fix a C1AED code?

Repair costs vary but typically range from $100 to $500, depending on the parts and labor required.

9. Can a software issue cause the C1AED code?

While less common, outdated or corrupted software in the parking assist module could potentially trigger this code.

10. Will clearing the code fix the C1AED issue?

Clearing the code may temporarily remove it, but the underlying issue must be resolved to prevent it from returning.

Discuss the causes and fixes for C1AED OBDII Code

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