AutoCodes – Generic – C101C

C101C Code - Right Front Wheel Speed Sensor Signal Erratic Performance

Quick Answer

The Anti-Lock Brake System (ABS) Module monitors the Right Front Wheel Speed Sensor. Common causes include Tire air pressure mismatch, Faulty Right Front Wheel Speed Sensor, Right Front Wheel Speed Sensor harness is open or shorted. 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: C101C indicates Right Front Wheel Speed Sensor Signal Erratic Performance.
Common causes: Common causes include Tire air pressure mismatch, Faulty Right Front Wheel Speed Sensor, Right Front Wheel Speed Sensor harness is open or shorted.
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 15,106

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 Aug 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C101C Description

The Anti-Lock Brake System (ABS) Module monitors the Right Front Wheel Speed Sensor. The ABS Module sets the OBDII code when the Right Front Wheel Speed Sensor (WSS) Signal is intermittently missing while vehicle speed is above 25 mph (40 km/h) or erratic wheel speed signal during acceleration or sensed wheel speed is different from other wheels.

OBDII Code C101C - Right Front Wheel Speed Sensor Signal Erratic Performance - AutoCodes.com — C101C Code - Right Front Wheel Speed Sensor Signal Erratic Performance

What does this mean?

What are the Possible Causes of the DTC C101C?

Tire air pressure mismatch
Faulty Right Front Wheel Speed Sensor
Right Front Wheel Speed Sensor harness is open or shorted
Right Front Wheel Speed Sensor circuit poor electrical connection
Faulty Anti-Lock Brake System (ABS) Module

How to Fix the DTC C101C?

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 C101C 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 C101C code?

Need more information on how to fix the C101C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C101C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C101C Chrysler — Right Front Wheel Speed Sensor Signal Erratic Performance
C101C Dodge — Right Front Wheel Speed Sensor Signal Erratic Performance
C101C Jeep — Right Front Wheel Speed Sensor Signal Erratic Performance
C101C Mitsubishi — Front Right Wheel Speed Sensor System

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 C101C Code

1. What are the common symptoms of OBDII code C101C (Right Front Wheel Speed Sensor Signal Erratic Performance)?

- Common symptoms include ABS or traction control warning lights coming on, inconsistent speedometer readings, and potential issues with ABS functionality.

2. What could cause the OBDII code C101C to trigger?

- The code C101C is typically triggered by a malfunction in the right front wheel speed sensor, such as a faulty sensor, damaged wiring, or poor connections.

3. How can I diagnose the cause of OBDII code C101C?

- To diagnose the cause of code C101C, you can perform a visual inspection of the right front wheel speed sensor and its wiring, use a multimeter to test the sensor's resistance, and check for any loose or damaged connections.

4. Can a dirty wheel speed sensor trigger code C101C?

- Yes, a dirty or contaminated right front wheel speed sensor can cause erratic performance and trigger code C101C. Cleaning the sensor may resolve the issue.

5. Is it safe to drive with OBDII code C101C present?

- Driving with code C101C may affect the performance of your ABS system and traction control. It is recommended to address the issue promptly to ensure safe driving conditions.

6. Can I reset OBDII code C101C with a simple scan tool?

- Yes, you can reset code C101C with an OBDII scan tool. However, if the underlying issue causing the code is not resolved, it is likely to reappear.

7. Will replacing the right front wheel speed sensor fix OBDII code C101C?

- In many cases, replacing the right front wheel speed sensor can resolve code C101C. However, it is essential to ensure proper diagnosis to address any underlying issues.

8. Are there any specific repair tips for addressing OBDII code C101C?

- When repairing code C101C, make sure to use a quality replacement sensor, check for proper sensor alignment, and clear any debris or contaminants that may affect sensor performance.

9. Can extreme weather conditions affect the performance of the right front wheel speed sensor and trigger code C101C?

- Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can impact the performance of the wheel speed sensor and contribute to triggering code C101C.

10. Should I seek professional help to diagnose and repair OBDII code C101C?

- If you are unsure about diagnosing or repairing code C101C, it is recommended to seek professional help from a qualified mechanic or technician to ensure the issue is properly addressed.