C0105 - Understanding the ABS Wheel Speed Sensor Malfunction in Common Vehicles

Quick Answer

C0105 means: C0105 indicates a malfunction in the ABS wheel speed sensor, affecting braking performance.

Fix: Check and replace faulty components Cost: $150 - $300 Time: 90-180 minutes

Can I drive with C0105? Immediate attention is recommended as this affects vehicle safety.

Common Questions

What does C0105 mean and how does it affect my car?

The C0105 code signals a problem with your ABS wheel speed sensor. This affects your vehicle's braking performance, particularly during hard stops or slippery conditions. If the ABS is not functioning correctly, you may experience longer stopping distances and less control over the vehicle.

What are the most common causes of C0105 and how much does it cost to fix?

Common causes include a faulty wheel speed sensor, damaged wiring, or a malfunctioning ABS control module. Repair costs can range from $100 for wiring repairs to over $1,200 for a replacement ABS module.

Can I drive my car with C0105 or should I stop immediately?

It's advisable to stop driving your vehicle as soon as you see the C0105 code. Ignoring this issue can lead to a complete failure of the ABS system, greatly reducing your braking capability and increasing the risk of an accident.

How can I diagnose C0105 myself using GeekOBD APP?

Using the GeekOBD APP, you can scan your vehicle for codes, view freeze frame data, and perform live data monitoring. This will help you assess the sensor's performance and identify whether it’s operational or needs replacement.

What vehicles are most commonly affected by C0105?

The C0105 code is frequently seen in 2014-2016 Toyota Camry, 2015 Ford F-150, and 2013 Honda Accord. Keep an eye out for any recalls or technical service bulletins (TSBs) related to the ABS system for these models.

How can I prevent C0105 from happening again?

Regular maintenance is key. Ensure your wheels and brakes are clean, check for damage to wiring during routine inspections, and replace worn brake components promptly to avoid sensor issues.

What is C0105?

The diagnostic trouble code (DTC) C0105 indicates a malfunction in the anti-lock braking system (ABS) wheel speed sensor. This sensor is crucial for monitoring the rotation speed of each wheel, and its data is used by the ABS module to prevent wheel lock-up during braking. When the C0105 code appears, it typically signifies that the ABS control module has detected a fault in the signal received from the wheel speed sensor. This could be due to a damaged sensor, faulty wiring, or a malfunctioning ABS control module itself. For car owners, this means that the vehicle's ABS system may not function correctly, which can lead to decreased braking performance and increased stopping distances. If you drive a 2016 Toyota Camry or a 2014 Ford F-150, you might be particularly susceptible to encountering this error code. Ignoring this problem can lead to unsafe driving conditions, especially in wet or slippery conditions where the ABS is essential for maintaining vehicle control. Addressing the C0105 code promptly is vital not only for safety but also for ensuring compliance with vehicle regulations, as a malfunctioning ABS can lead to failed inspections in some areas.

System: C - Chassis (ABS, Steering, Suspension)

Symptoms

Common symptoms when C0105 is present:

  • The ABS warning light on the dashboard activates and remains illuminated, signaling an issue with the braking system.
  • The brakes may feel different, such as a pulsation when applied, indicating that the ABS is not functioning properly.
  • Increased stopping distance when braking, which can be particularly dangerous in emergency situations.
  • Inconsistent anti-lock braking performance during slippery conditions, leading to potential loss of vehicle control.
  • A noticeable change in the traction control system's responsiveness, as it relies on accurate wheel speed data.

Possible Causes

Most common causes of C0105 (ordered by frequency):

  1. The most common cause of the C0105 code is a faulty wheel speed sensor, which accounts for approximately 60% of cases. This can happen due to wear and tear or exposure to road debris.
  2. A second cause could be damaged wiring or connectors associated with the wheel speed sensor. Corrosion or breakage in these areas can interrupt the signal.
  3. Another cause might be a malfunctioning ABS control module. While less common, it can prevent the system from interpreting sensor signals effectively.
  4. A rare but serious cause could be a mechanical issue with the wheel hub assembly, which can lead to sensor misalignment.
  5. Interference from aftermarket components, such as non-OEM brake systems or wheel sizes, can also contribute to the code appearing.

C0105 Repair Costs

Cost Breakdown by Repair Type

Sensor Replacement

Replacing the faulty wheel speed sensor with a new OEM or aftermarket part.

  • Total: $150 - $300
  • Success rate: 85%
Wiring Repair

Repairing or replacing damaged wiring or connectors associated with the wheel speed sensor.

  • Total: $100 - $250
  • Success rate: 80%
ABS Control Module Replacement

Replacing a malfunctioning ABS control module, a more complex repair.

  • Total: $500 - $1,200
  • Success rate: 90%
Money-Saving Tips for C0105
  • Start with the most common and least expensive repairs first
  • Use GeekOBD APP to confirm diagnosis before replacing expensive parts
  • Consider preventive maintenance to avoid future occurrences
  • Compare prices for OEM vs aftermarket parts based on your needs
  • Address the issue promptly to prevent more expensive secondary damage

Diagnostic Steps

Professional C0105 Diagnosis Process

Follow these systematic steps to accurately diagnose C0105. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes)

Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 3: Step 3: Component testing - Use a multimeter to test the voltage and resistance of the wheel speed sensor (20-30 minutes)

Step 3: Component testing - Use a multimeter to test the voltage and resistance of the wheel speed sensor (20-30 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 4: Step 4: System function test - Verify proper operation of the ABS system after repairs and clear codes using GeekOBD APP (10-15 minutes)

Step 4: System function test - Verify proper operation of the ABS system after repairs and clear codes using GeekOBD APP (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and monitor ABS functionality (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and monitor ABS functionality (15-20 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.

Important Notes

  • Always verify the repair with GeekOBD APP after completing diagnostic steps
  • Clear codes and test drive to ensure the problem is resolved
  • Address underlying causes to prevent code recurrence

Real Repair Case Studies

Case Study 1: ABS Sensor Replacement on a 2016 Toyota Camry

Vehicle: 2016 Toyota Camry, 50,000 miles

Problem: Customer reported ABS warning light illuminated and longer stopping distances.

Diagnosis: Using the GeekOBD APP, we confirmed C0105 and performed a visual inspection, identifying a faulty wheel speed sensor.

Solution: Replaced the wheel speed sensor and cleared the codes.

Cost: $220 (includes parts and labor)

Result: The ABS warning light turned off, and braking performance returned to normal.

Case Study 2: Wiring Repair on a 2014 Ford F-150

Vehicle: 2014 Ford F-150, 75,000 miles

Problem: Owner experienced intermittent ABS performance and dashboard warning lights.

Diagnosis: Diagnostic testing revealed C0105 due to damaged wiring near the wheel hub.

Solution: Repaired the wiring harness and secured connections.

Cost: $180 (parts and labor)

Result: After repair, the ABS system functioned correctly, and no warning lights were present.

Diagnose C0105

Use GeekOBD APP for professional diagnosis!

  • Real-time data monitoring
  • Advanced diagnostic features
  • Step-by-step repair guidance
  • Professional-grade analysis
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Code Information

Code: C0105
System: Chassis (ABS, Steering, Suspension)
Severity: HIGH
Category: Chassis Codes