Quick Answer
C0655 means: C0655 indicates an issue with the stability control system, affecting vehicle safety.
Can I drive with C0655? Immediate attention is needed to ensure driving safety.
Common Questions
What does C0655 mean and how does it affect my car?
C0655 means there is an issue with your vehicle's stability control system. This affects your car's ability to maintain traction, especially in adverse conditions like rain or snow, increasing the risk of skidding or losing control.
What are the most common causes of C0655 and how much does it cost to fix?
Common causes include a faulty ABS module, damaged wiring, or low brake fluid levels. Repair costs can range from $50 for fluid replacement to over $1,200 for ABS module replacement.
Can I drive my car with C0655 or should I stop immediately?
While it's possible to drive with C0655, it's unsafe as your stability control could be compromised. It's best to address this issue as soon as possible to ensure your safety.
How can I diagnose C0655 myself using GeekOBD APP?
Using the GeekOBD APP, you can scan your vehicle for DTCs, view freeze frame data, and monitor real-time parameters. This helps you understand the context of the C0655 code and narrow down potential issues.
What vehicles are most commonly affected by C0655?
Commonly affected vehicles include the 2013-2018 Ford Escape, 2010-2017 Chevrolet Equinox, and other models equipped with ABS and ESC systems.
How can I prevent C0655 from happening again?
Regular maintenance, such as checking brake fluid levels and inspecting wiring for wear, can help prevent C0655. Consider having your ABS system inspected during routine service.
What is C0655?
The diagnostic trouble code (DTC) C0655 indicates a problem with the vehicle's stability control system. This code is primarily generated when the Anti-lock Braking System (ABS) or Electronic Stability Control (ESC) detects a fault that prevents it from functioning properly. Vehicles equipped with these advanced safety systems, such as the 2013-2018 Ford Escape or the 2010-2017 Chevrolet Equinox, are particularly susceptible to this error. When C0655 is triggered, it often signifies a malfunction in the communication between the ABS module and the Engine Control Unit (ECU). As a result, the stability control features may be disabled, increasing the risk of loss of control during adverse driving conditions. Notably, this could manifest in situations such as slippery roads or abrupt turns, where stability control is critical. Ignoring this code can lead to unsafe driving situations and potential accidents. Therefore, it's essential for car owners to address any C0655 codes promptly to ensure the safety and reliability of their vehicle.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0655 is present:
- The Check Engine light or Stability Control light remains on, indicating a system malfunction.
- You may notice reduced stability during sharp turns or on slippery surfaces, leading to potential loss of control.
- Fuel economy might decrease by around 10-15% due to the vehicle's systems working extra hard to compensate for faults.
- Unusual noises from the ABS pump when engaging, which can indicate a deeper issue.
- The vehicle may exhibit erratic braking behavior, such as the brakes engaging unexpectedly.
Possible Causes
Most common causes of C0655 (ordered by frequency):
- The most common cause is a faulty ABS module, which accounts for about 40% of C0655 occurrences. This can be due to wear or electrical issues.
- Another frequent culprit is damaged wiring or connectors related to the ABS system, which can disrupt communication between the systems.
- A third cause is low brake fluid levels, which can interfere with the ABS function. Regularly checking fluid levels can help prevent this.
- Less commonly, a failing ECU could trigger the C0655 code, usually requiring a specialized diagnostic tool to confirm.
- A rare but possible cause is a software glitch within the ABS module that may require a software update from the manufacturer.
C0655 Repair Costs
Cost Breakdown by Repair Type
ABS Module Replacement
Replacing a faulty ABS module to restore stability control functionality.
- Total: $500 - $1,200
- Success rate: 85%
Wiring Repair
Repairing or replacing damaged wiring connections related to the ABS system.
- Total: $100 - $300
- Success rate: 75%
Brake Fluid Replacement
Replacing low brake fluid and ensuring proper levels for ABS function.
- Total: $50 - $100
- Success rate: 90%
Money-Saving Tips for C0655
- 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 C0655 Diagnosis Process
Follow these systematic steps to accurately diagnose C0655. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Conduct an initial visual inspection of wiring and connections around the ABS system for any obvious damage or corrosion (5-10 minutes)
Step 1: Conduct an initial visual inspection of wiring and connections around the ABS system for any obvious damage or corrosion (5-10 minutes).
Step 2: Step 2: Use the GeekOBD APP to perform an OBD2 scan
Step 2: Use the GeekOBD APP to perform an OBD2 scan. Retrieve all codes and examine freeze frame data to get context for the fault (10-15 minutes).
Step 3: Step 3: Conduct component testing using a multimeter to check the integrity of the ABS module and related components (20-30 minutes)
Step 3: Conduct component testing using a multimeter to check the integrity of the ABS module and related components (20-30 minutes).
Step 4: Step 4: After repairs, perform a system function test to ensure everything operates correctly and clear the codes (10-15 minutes)
Step 4: After repairs, perform a system function test to ensure everything operates correctly and clear the codes (10-15 minutes).
Step 5: Step 5: Finally, take the vehicle for a road test under various conditions to confirm that the repair was successful and the C0655 code does not return (15-20 minutes)
Step 5: Finally, take the vehicle for a road test under various conditions to confirm that the repair was successful and the C0655 code does not return (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: Stability Control Module Replacement on 2016 Ford Escape
Vehicle: 2016 Ford Escape, 50,000 miles
Problem: Customer reported the stability control light was on and noticed reduced braking performance.
Diagnosis: Initial scan revealed C0655. Visual inspection showed corrosion in the ABS module wiring.
Solution: Replaced the ABS module and repaired the wiring. Conducted a system function test to ensure stability control was operational.
Cost: $950 (parts: $800, labor: $150)
Result: Stability control system fully operational. Customer reported improvement in brake performance.
Case Study 2: Wiring Repair on 2014 Chevrolet Equinox
Vehicle: 2014 Chevrolet Equinox, 75,000 miles
Problem: Check Engine light illuminated, and the vehicle exhibited erratic braking behavior.
Diagnosis: Diagnosing C0655 showed damaged wiring in the ABS system.
Solution: Repaired the damaged wires and cleared the codes. Conducted road tests to ensure proper functionality.
Cost: $200 (parts: $50, labor: $150)
Result: C0655 code cleared, and customer reported normal braking functionality.