AutoCodes – Generic – C1108

C1108 Code - Front Left Sensor 2

Quick Answer

When the sensor rotor rotates, the magnetic field changes. Common causes include ABS Wheel Sensor not properly installed, ABS Wheel Sensor rotor or encoder damaged, ABS Wheel Sensor rotor loose on axle. 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
C1108 indicates Front Left Sensor 2.
Common causes
Common causes include ABS Wheel Sensor not properly installed, ABS Wheel Sensor rotor or encoder damaged, ABS Wheel Sensor rotor loose on axle.
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 5,096
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 14, 2020
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Code C1108 Description

When the sensor rotor rotates, the magnetic field changes. It converts the magnetic field changes to current signals (rectangular wave) and transmits them to the Anti-Lock Brake System (ABS) Actuator and Electric Unit (Control Unit). The ABS Actuator and Electric Unit monitors the ABS Wheel Sensor. The ABS Actuator and Electric Unit sets the OBDII code when the ABS Wheel Sensor is not to factory specifications.
OBDII Code C1108 - Front Left Sensor 2 - AutoCodes.com
C1108 Code - Front Left Sensor 2

What are the Possible Causes of the DTC C1108?

  • ABS Wheel Sensor not properly installed
  • ABS Wheel Sensor rotor or encoder damaged
  • ABS Wheel Sensor rotor loose on axle
  • Faulty ABS Wheel Sensor
  • ABS Wheel Sensor harness is open or shorted
  • ABS Wheel Sensor circuit poor electrical connection
  • Faulty Anti-Lock Brake System (ABS) Actuator and Electric Unit (Control Unit)

How to Fix the DTC C1108?

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 C1108 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 C1108 code?

Need more information on how to fix the C1108 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1108 code diagnosed by a professional: Find a repair shop in your area

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 C1108 Code

1. What are the common symptoms of OBDII code C1108 (Front Left Sensor 2)?

The common symptoms of OBDII code C1108 include issues with the ABS system, the traction control system, and potential illumination of the ABS warning light on the dashboard.

2. What are some possible causes of OBDII code C1108?

Possible causes of OBDII code C1108 include a faulty front left wheel speed sensor, damaged wiring or connectors related to the sensor, or a malfunction in the ABS control module.

3. How can I diagnose the issue related to OBDII code C1108?

To diagnose the issue related to OBDII code C1108, you can use an OBDII scanner to read the code, inspect the front left wheel speed sensor and its wiring for any visible damage, and perform a thorough inspection of the ABS system components.

4. Can I still drive my vehicle with OBDII code C1108 present?

It is not recommended to drive your vehicle with OBDII code C1108 present as it can affect the proper functioning of the ABS and traction control systems, potentially compromising your safety on the road.

5. How can I repair OBDII code C1108 (Front Left Sensor 2) myself?

Depending on the exact cause, repairing OBDII code C1108 may involve replacing the front left wheel speed sensor, repairing or replacing damaged wiring or connectors, or recalibrating the ABS control module. It is recommended to have some level of technical expertise when attempting these repairs.

6. Is it necessary to reset the OBDII code C1108 after making repairs?

Yes, it is important to reset the OBDII code C1108 after making repairs to see if the issue has been resolved. You can do this using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.

7. How much does it typically cost to repair OBDII code C1108 at a professional auto repair shop?

The cost of repairing OBDII code C1108 at a professional auto repair shop can vary depending on the exact cause of the issue, the labor rates in your area, and the cost of any replacement parts needed. It is recommended to obtain quotes from different shops for an accurate estimate.

8. Can weather conditions affect the occurrence of OBDII code C1108?

Extreme weather conditions, such as heavy rain or snow, can potentially affect the front left wheel speed sensor and trigger OBDII code C1108. Keeping the sensor and its connectors clean and well-protected can help prevent weather-related issues.

9. How important is it to address OBDII code C1108 promptly?

It is important to address OBDII code C1108 promptly to ensure the proper functioning of the ABS and traction control systems in your vehicle. Ignoring this code can lead to safety risks and potential damage to other components in the ABS system.

10. Is OBDII code C1108 a common issue in certain vehicle makes and models?

OBDII code C1108 (Front Left Sensor 2) may be more common in vehicles equipped with ABS and traction control systems that use wheel speed sensors, such as many modern cars, trucks, and SUVs. It is important to refer to your vehicle's specific diagnostic manual for accurate information.

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