Quick Answer
C0944 means: C0944 signifies a traction control system malfunction.
Can I drive with C0944? Immediate attention is recommended to ensure vehicle safety.
Common Questions
What does C0944 mean and how does it affect my car?
C0944 indicates a traction control system malfunction, which can affect vehicle stability and traction during slippery conditions. Ignoring this code may lead to further safety issues.
What are the most common causes of C0944 and how much does it cost to fix?
The most frequent cause is a faulty wheel speed sensor, with repair costs ranging from $150 to $300. Other causes include ABS module issues and wiring problems.
Can I drive my car with C0944 or should I stop immediately?
While you can drive the vehicle, it is not advisable to do so until the issue is resolved, as it compromises traction control, especially in adverse weather.
How can I diagnose C0944 myself using GeekOBD APP?
Using the GeekOBD APP, perform a full OBD2 scan to retrieve codes, analyze freeze frame data, and check the functionality of the traction control system components.
What vehicles are most commonly affected by C0944?
Commonly affected vehicles include the 2015-2020 Ford Fusion, Toyota Camry, and Honda Accord, among others.
How can I prevent C0944 from happening again?
Regular vehicle maintenance, including inspections of the ABS and traction control systems, and keeping wiring intact can help prevent the recurrence of C0944.
What is C0944?
The Diagnostic Trouble Code (DTC) C0944 indicates a malfunction within the traction control system of your vehicle. This code typically relates to issues in the wheel speed sensors, the ABS module, or the traction control module itself. When this code is triggered, it often signals that the vehicle's traction control system cannot perform optimally. In practical terms, this might lead to reduced vehicle stability during acceleration, particularly in slippery conditions. For vehicle owners, this means that the vehicle may not respond as expected when trying to regain traction, potentially putting you at risk during adverse weather. It's essential to address this issue to ensure your safety and the proper functioning of your vehicle. Commonly affected vehicles include certain models from Ford, Toyota, and Honda, especially those from 2015 to 2020. If you notice the traction control warning light illuminated on the dashboard, it can be a clear sign that this code is present, and immediate diagnostic steps should be taken to resolve the issue.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0944 is present:
- The traction control warning light remains illuminated on the dashboard, indicating a system fault.
- You may experience a loss of traction during acceleration, especially on wet or icy roads, which can be alarming for drivers.
- Drivers may notice unusual behavior during turns, such as the vehicle slipping or losing grip unexpectedly.
- There might be a significant increase in stopping distance due to compromised braking performance, leading to safety concerns.
- Some vehicles may display erratic speedometer readings, which can confuse drivers and affect their driving experience.
Possible Causes
Most common causes of C0944 (ordered by frequency):
- The most common cause of DTC C0944 is a faulty wheel speed sensor, which can account for about 60% of cases. This sensor relays crucial information about the speed of each wheel to the traction control module.
- Another potential cause is a malfunctioning ABS control module, leading to improper communication between the traction control system and the braking system. This can result in incorrect readings and performance issues.
- Wiring issues, such as damaged or corroded connectors, can also trigger the C0944 code. Regular inspections can help prevent this problem.
- Less common causes can include software glitches within the vehicle's control modules, which may require reprogramming or updates to resolve.
- A rare but serious cause could be a failing traction control unit itself, which can lead to complete system failure if not addressed promptly.
C0944 Repair Costs
Cost Breakdown by Repair Type
Wheel Speed Sensor Replacement
Replacing a faulty wheel speed sensor typically resolves the C0944 code and restores traction control functionality.
- Total: $150 - $300
- Success rate: 80%
ABS Control Module Repair
Repairing or replacing a malfunctioning ABS control module can address the underlying issue causing the C0944 code.
- Total: $300 - $800
- Success rate: 75%
Money-Saving Tips for C0944
- 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 C0944 Diagnosis Process
Follow these systematic steps to accurately diagnose C0944. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Conduct an initial visual inspection, checking for any obvious issues like damaged wiring, loose connections, or corrosion around the wheel speed sensors and ABS module (5-10 minutes)
Step 1: Conduct an initial visual inspection, checking for any obvious issues like damaged wiring, loose connections, or corrosion around the wheel speed sensors and ABS module (5-10 minutes).
Step 2: Step 2: Use the GeekOBD APP to perform an OBD2 scan, retrieving all codes and freeze frame data to gain context about the fault (10-15 minutes)
Step 2: Use the GeekOBD APP to perform an OBD2 scan, retrieving all codes and freeze frame data to gain context about the fault (10-15 minutes).
Step 3: Step 3: Test components using a multimeter or specific diagnostic tools to check the functionality of the wheel speed sensors and ABS module (20-30 minutes)
Step 3: Test components using a multimeter or specific diagnostic tools to check the functionality of the wheel speed sensors and ABS module (20-30 minutes).
Step 4: Step 4: After repairs, carry out a system function test to verify everything operates correctly and clear the codes from the memory (10-15 minutes)
Step 4: After repairs, carry out a system function test to verify everything operates correctly and clear the codes from the memory (10-15 minutes).
Step 5: Step 5: Perform a road test under various conditions to confirm repair success and ensure no warning lights reappear (15-20 minutes)
Step 5: Perform a road test under various conditions to confirm repair success and ensure no warning lights reappear (15-20 minutes).
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: Wheel Speed Sensor Replacement on 2016 Ford Fusion
Vehicle: 2016 Ford Fusion, 75,000 miles
Problem: Customer reported traction control warning light illuminated and loss of traction during rain.
Diagnosis: Initial scan revealed C0944. Visual inspection showed a damaged wheel speed sensor.
Solution: Replaced the faulty wheel speed sensor and cleared the codes.
Cost: $220 (parts and labor included)
Result: Post-repair road test confirmed the issue was resolved; traction control system functioning properly.
Case Study 2: ABS Control Module Repair on 2018 Toyota Camry
Vehicle: 2018 Toyota Camry, 45,000 miles
Problem: Customer experienced erratic braking and traction control warnings.
Diagnosis: OBD scan confirmed C0944; ABS control module tested faulty.
Solution: Replaced the ABS control module and updated software.
Cost: $650 (labor and parts included)
Result: Successful repair with no reoccurring issues; traction control functioning normally.