Engine-Codes.com
Engine-Codes – Generic – C1A73

C1A73 Code - Driving Support ECU Receive Data Malfunction

Quick Answer

The C1A73 diagnostic trouble code (DTC) refers to a Driving Support ECU Receive Data Malfunction. Common causes include Loose or damaged wiring connections, Faulty sensors or sensor calibration issues, Malfunctioning driving support ECU. 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
C1A73 indicates Driving Support ECU Receive Data Malfunction.
Common causes
Common causes include Loose or damaged wiring connections, Faulty sensors or sensor calibration issues, Malfunctioning driving support ECU.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code C1A73 Description

The C1A73 diagnostic trouble code (DTC) refers to a Driving Support ECU Receive Data Malfunction. This code typically indicates a communication error between the vehicle's driving support electronic control unit (ECU) and other related components. The driving support ECU plays a crucial role in various advanced driver assistance systems (ADAS) that enhance vehicle safety and performance.

OBDII Code C1A73 - Driving Support ECU Receive Data Malfunction
C1A73 Code - Driving Support ECU Receive Data Malfunction

Common Causes of C1A73

  1. Loose or damaged wiring connections
  2. Faulty sensors or sensor calibration issues
  3. Malfunctioning driving support ECU
  4. Software glitches or communication errors within the vehicle's network
  5. Environmental factors affecting sensor performance, such as dirt or debris buildup

Symptoms of C1A73

  1. Malfunction or loss of functionality in driving support systems
  2. Warning lights illuminated on the dashboard
  3. Inconsistent or erratic behavior of safety features
  4. Unresponsive or delayed responses from driving aids
  5. Reduced overall vehicle performance and safety

How to Fix C1A73

  1. Begin by conducting a thorough diagnostic scan to retrieve the specific error codes and pinpoint the source of the communication malfunction.
  2. Inspect and test wiring connections, sensors, and the driving support ECU for any signs of damage or malfunction.
  3. Reset or recalibrate the driving support ECU and related components to ensure proper communication and functionality.
  4. Update software or firmware as needed to address any known issues or bugs that could be causing the problem.
  5. Test the vehicle to verify that the driving support systems are functioning correctly after the repair process.

Cost to Fix C1A73

The typical repair costs for a Driving Support ECU Receive Data Malfunction can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost could range from $200 to $800, including parts and labor. However, it's essential to note that the diagnosis time and labor rates at auto repair shops can fluctuate based on various factors. It's advisable to consult with local auto repair shops to get a more accurate estimate based on your vehicle's make and model, as well as the severity of the issue.

What does this mean?

Tech Notes for C1A73

When replacing the Forward Recognition Camera, always replace it with a new one. If a Forward Recognition Camera which was installed in another vehicle is used, the information stored in the Forward Recognition Camera will not match the information from the vehicle. As a result, a DTC may be stored.

If the Forward Recognition Camera has been replaced with a new one, be sure to perform Forward Recognition Camera learning.

When replacing the Driving Support ECU Assembly, always replace it with a new one. If a Driving Support ECU Assembly which was installed in another vehicle is used, the information stored in the Driving Support ECU Assembly will not match the information from the vehicle. As a result, a DTC may be stored.

Need more information about the C1A73 code?

Need more information on how to fix the C1A73 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1A73 code diagnosed by a professional: Find a repair shop in your area

Code C1A73 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 C1A73 Code

No Frequently Asked Questions about C1A73 Code found.

Discuss the causes and fixes for C1A73 OBDII Code

Submit a New Comment

Code C1A73 comments

No comments found for this page.