AutoCodes – Generic – C0103

C0103 Code - Front ABS Wheel Speed Sensor Right

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Front ABS Wheel Speed Sensor Right. Common causes include Faulty Front ABS Wheel Speed Sensor Right, Front ABS Wheel Speed Sensor Right harness is open or shorted, Front ABS Wheel Speed Sensor Right circuit poor electrical connection. 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: C0103 indicates Front ABS Wheel Speed Sensor Right.
Common causes: Common causes include Faulty Front ABS Wheel Speed Sensor Right, Front ABS Wheel Speed Sensor Right harness is open or shorted, Front ABS Wheel Speed Sensor Right circuit poor electrical connection.
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.

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Code Popularity 4,091

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 05, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0103 Description

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

OBDII Code C0103 - Front ABS Wheel Speed Sensor Right - AutoCodes.com — C0103 Code - Front ABS Wheel Speed Sensor Right

What does this mean?

What are the Possible Causes of the DTC C0103?

Faulty Front ABS Wheel Speed Sensor Right
Front ABS Wheel Speed Sensor Right harness is open or shorted
Front ABS Wheel Speed Sensor Right circuit poor electrical connection

How to Fix the DTC C0103?

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 C0103 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.

Need more information about the C0103 code?

Need more information on how to fix the C0103 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0103 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C0103 Subaru — Front ABS Wheel Speed Sensor Right

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 C0103 Code

1. What are the common symptoms of OBDII code C0103 (Front ABS Wheel Speed Sensor Right)?

- Common symptoms include the ABS warning light illuminating on the dashboard, loss of ABS functionality, and potential issues with traction control.

2. What are the possible causes of OBDII code C0103?

- The code C0103 is typically triggered by a faulty front ABS wheel speed sensor on the right side, damaged wiring or connectors, or issues with the ABS module.

3. How can I diagnose the cause of OBDII code C0103?

- Diagnosing code C0103 usually involves visually inspecting the right front ABS wheel speed sensor and its wiring, testing the sensor's resistance, and using a scan tool to check for any stored fault codes.

4. Can a dirty sensor cause OBDII code C0103?

- Yes, a dirty or contaminated front ABS wheel speed sensor on the right side can lead to code C0103. Cleaning the sensor may resolve the issue if dirt or debris is the cause.

5. How can I repair OBDII code C0103 (Front ABS Wheel Speed Sensor Right)?

- Repairing code C0103 often involves replacing the faulty front ABS wheel speed sensor on the right side, repairing damaged wiring or connectors, and clearing the fault code with a scan tool.

6. Will driving with OBDII code C0103 cause any safety concerns?

- Driving with code C0103 may result in the loss of ABS functionality, potentially compromising braking performance, especially in emergency situations. It is recommended to address the issue promptly.

7. Can I reset OBDII code C0103 without repairing the issue?

- Resetting the code without addressing the underlying problem will not resolve the issue permanently. The fault code is likely to reappear until the root cause, such as a faulty sensor, is repaired.

8. Is it possible to drive my vehicle with OBDII code C0103?

- While it may be possible to drive the vehicle with code C0103, it is not recommended as it can affect the ABS system's performance and compromise safety. It is best to address the issue promptly.

9. How much does it typically cost to repair OBDII code C0103?

- The cost of repairing code C0103 can vary depending on the specific vehicle make and model, the cost of the replacement sensor, and labor charges. It is advisable to consult a mechanic for an accurate estimate.

10. Can OBDII code C0103 be a recurring issue?

- If the root cause of code C0103, such as a faulty sensor or wiring problem, is not properly addressed during the repair, it is possible for the code to recur. Thorough diagnosis and repair are essential to prevent recurrence.