Quick Answer
C0055 means: DTC C0055 indicates a problem with the wheel speed sensor circuit, affecting the ABS.
Can I drive with C0055? Immediate diagnosis recommended to ensure safe driving.
Common Questions
What does C0055 mean and how does it affect my car?
DTC C0055 signifies a malfunction in the wheel speed sensor circuit. This can lead to compromised braking performance, particularly in adverse weather conditions. If ignored, it can worsen over time, leading to more serious braking issues.
What are the most common causes of C0055 and how much does it cost to fix?
Common causes include faulty wheel speed sensors, damaged wiring, and moisture in the ABS module. Repair costs range from $150 to $600 depending on the issue, with sensor replacements being the most frequent and cost-effective fix.
Can I drive my car with C0055 or should I stop immediately?
While you can technically drive with a C0055 code, it's not recommended. The compromised ABS can lead to unsafe driving conditions, especially in emergencies, so immediate diagnosis is advisable.
How can I diagnose C0055 myself using GeekOBD APP?
To diagnose C0055 with the GeekOBD APP, first connect the device to your vehicle's OBD2 port, run a scan to retrieve DTCs, and review the freeze frame data. This will provide insight into the conditions when the fault occurred.
What vehicles are most commonly affected by C0055?
Commonly affected vehicles include the 2010-2015 Chevrolet Equinox, GMC Terrain, and other models from GM. Recalls or Technical Service Bulletins (TSBs) may exist for these models addressing similar issues.
How can I prevent C0055 from happening again?
Regularly inspect your vehicle's brake system, ensuring sensors are clean and free of debris. Avoiding harsh driving conditions and maintaining proper wheel alignment can also help prevent future occurrences.
What is C0055?
DTC C0055 is a diagnostic trouble code that indicates a problem with the wheel speed sensor circuit, particularly in the context of anti-lock brake systems (ABS) in vehicles. This code is most commonly found in models such as the 2010-2015 Chevrolet Equinox and GMC Terrain, among others. When this code is triggered, it typically means that the ABS module is not receiving the correct signal from one of the wheel speed sensors. This can lead to the ABS light illuminating on the dashboard, and in some cases, the traction control and stability control systems may also be disabled. The implications of this code are significant, as it can affect the vehicle's braking performance, especially under slippery conditions. Failure to address a C0055 code can lead to longer stopping distances and an increased risk of skidding, making it crucial for drivers to seek professional diagnostic services promptly. If you're experiencing this code, you're likely to notice changes in brake responsiveness, and you should take action as soon as possible to ensure safe driving conditions.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0055 is present:
- The ABS warning light appears on the dashboard, indicating a malfunction in the anti-lock braking system.
- You may experience a loss of traction control, which can lead to skidding during wet or slippery conditions.
- The brakes might feel less responsive, particularly when attempting sudden stops or emergency braking.
- There could be intermittent warning lights or erratic behavior of the ABS system, leading to unexpected braking response.
- Decreased braking efficiency, particularly at high speeds, which can be alarming for drivers.
Possible Causes
Most common causes of C0055 (ordered by frequency):
- The most common cause of C0055 is a faulty wheel speed sensor, with a likelihood of about 60%. This can occur due to wear, corrosion, or damage from road debris.
- A damaged wiring harness or connector related to the wheel speed sensor can also cause this code, as it interrupts the signal transmission to the ABS module.
- Moisture intrusion into the ABS control module can lead to short circuits or sensor failures, which is preventable with regular vehicle checks.
- Less common causes include a malfunctioning ABS control module itself, which can disrupt normal sensor operation.
- In rare cases, incorrect installation of aftermarket parts or modifications to the braking system can trigger this code.
C0055 Repair Costs
Cost Breakdown by Repair Type
Wheel Speed Sensor Replacement
Replacement of faulty wheel speed sensor to restore ABS functionality.
- Total: $150 - $300
- Success rate: 90%
Wiring Harness Repair
Repair or replacement of damaged wiring harness to ensure proper signal transmission.
- Total: $100 - $200
- Success rate: 85%
ABS Control Module Replacement
Replacement of the ABS control module if internal faults are detected.
- Total: $300 - $600
- Success rate: 75%
Money-Saving Tips for C0055
- 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 C0055 Diagnosis Process
Follow these systematic steps to accurately diagnose C0055. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Start with an initial visual inspection of the wheel speed sensors and wiring, looking for any visible damage or loose connections (5-10 minutes)
Step 1: Start with an initial visual inspection of the wheel speed sensors and wiring, looking for any visible damage or loose connections (5-10 minutes).
Step 2: Step 2: Use a diagnostic tool like the GeekOBD APP to scan the vehicle for codes and retrieve freeze frame data, which helps in understanding the issue's context (10-15 minutes)
Step 2: Use a diagnostic tool like the GeekOBD APP to scan the vehicle for codes and retrieve freeze frame data, which helps in understanding the issue's context (10-15 minutes).
Step 3: Step 3: Test the suspected wheel speed sensors using a multimeter to check for proper voltage and continuity (20-30 minutes)
Step 3: Test the suspected wheel speed sensors using a multimeter to check for proper voltage and continuity (20-30 minutes).
Step 4: Step 4: After any repairs, conduct a system function test to ensure the ABS system operates correctly and clear any fault codes (10-15 minutes)
Step 4: After any repairs, conduct a system function test to ensure the ABS system operates correctly and clear any fault codes (10-15 minutes).
Step 5: Step 5: Finally, perform a road test to verify that the ABS system is functioning properly under various driving conditions (15-20 minutes)
Step 5: Finally, perform a road test to verify that the ABS system is functioning properly under various driving conditions (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: Chevrolet Equinox C0055 Issue Resolved
Vehicle: 2013 Chevrolet Equinox, 85,000 miles
Problem: Customer reported the ABS light was on and the brakes felt unresponsive.
Diagnosis: Diagnosed with a faulty rear wheel speed sensor after performing visual inspections and multimeter checks.
Solution: Replaced the rear wheel speed sensor and cleared the codes.
Cost: $180 (sensor cost: $100, labor: $80)
Result: ABS light turned off, and braking performance returned to normal.
Case Study 2: GMC Terrain Wiring Harness Repair
Vehicle: 2014 GMC Terrain, 70,000 miles
Problem: ABS light illuminated, and traction control was disabled.
Diagnosis: Found damaged wiring in the wheel speed sensor circuit after scanning with GeekOBD.
Solution: Repaired the wiring harness and replaced the connector.
Cost: $150 (parts: $50, labor: $100)
Result: Restored ABS functionality; lights no longer present.