AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Buick - C0503 Buick

C0503 Buick Code - Left Front Wheel Speed Sensor Circuit High

- Code Popularity: 648 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC C0503 Buick?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Left Front Wheel Speed Sensor
  • Left Front Wheel Speed Sensor harness is open or shorted
  • Left Front Wheel Speed Sensor circuit poor electrical connection
⚠ Does your Buick have Safety Recalls? → Check here

How to Fix the DTC C0503 Buick?

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

Search for C0503 Buick Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0503 Buick code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

Code C0503 Buick Description

The Anti-Lock Brake System (ABS) Module monitors the Left Front Wheel Speed Sensor. The ABS Module sets the OBDII code when the Left Front Wheel Speed Sensor is not to factory specifications.

OBDII Code C0503 Buick - Left Front Wheel Speed Sensor Circuit High - AutoCodes.com
C0503 Buick Code - Left Front Wheel Speed Sensor Circuit High

Need More Information on the Code?

Need more information on how to fix the C0503 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0503 Buick code diagnosed by a professional: Find a repair shop in your area

Code C0503 Buick comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the C0503 Buick code? Have you replaced any parts?
Any information is appreciated. Thanks