Quick Answer
C0602 means: C0602 indicates a malfunction in the Electronic Power Steering system.
Can I drive with C0602? Immediate attention is recommended to avoid unsafe driving conditions.
Common Questions
What does C0602 mean and how does it affect my car?
DTC C0602 signals a malfunction in your car's Electronic Power Steering system. This can lead to heavy steering, especially at low speeds, which affects your ability to control the vehicle safely. Ignoring this code can result in a complete loss of steering assist, creating a dangerous situation.
What are the most common causes of C0602 and how much does it cost to fix?
The most common cause of C0602 is a faulty Electronic Power Steering module, which may cost between $800 and $1,200 to replace. Other potential causes include wiring issues and low fluid levels, which can generally be repaired for less.
Can I drive my car with C0602 or should I stop immediately?
It's advisable to avoid driving your car if you see the C0602 code. The steering assist may fail, making it difficult to control the vehicle, which poses a severe safety risk.
How can I diagnose C0602 myself using GeekOBD APP?
Using the GeekOBD APP, you can connect to your vehicle's OBD2 port to retrieve diagnostic trouble codes, including C0602. Look for freeze frame data and monitor any real-time parameters related to the EPS system to identify potential issues.
What vehicles are most commonly affected by C0602?
Commonly affected vehicles include the 2013-2018 Ford Escape, 2014-2019 Ford Fusion, and 2015-2018 Ford Mustang. Always check for any recalls or technical service bulletins (TSBs) related to the EPS system.
How can I prevent C0602 from happening again?
Regular maintenance checks of the power steering fluid levels and the EPS system can help. Additionally, ensure that all electrical connections related to the steering are clean and secure, which can prevent future issues.
What is C0602?
The diagnostic trouble code (DTC) C0602 is related to the Electronic Power Steering (EPS) system, specifically indicating a malfunction in the steering assist function. This code typically appears when there's an issue with the EPS module or the communication between the module and the vehicle's powertrain control module (PCM). When C0602 is triggered, drivers may experience difficulty steering, especially at low speeds, or may notice that the steering feels unusually heavy. This could lead to unsafe driving conditions, making it critical to address. The power steering system is essential for ease of maneuverability while driving, and if compromised, it can impact vehicle control. Moreover, if the EPS system fails entirely, it could lead to a complete loss of steering assist, posing a severe safety hazard. Therefore, understanding the implications of DTC C0602 is essential for any vehicle owner, especially those with makes like the Ford Escape, which has been known to exhibit this code. Addressing the issue promptly can prevent further damage and ensure safe driving conditions.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0602 is present:
- The check engine light illuminates on the dashboard, signaling a problem with the steering system.
- Drivers may experience heavy or unresponsive steering, especially when turning at low speeds.
- Fuel economy might decrease by around 5-10% due to increased effort required for steering.
- There may be unusual noises when turning the steering wheel, indicating a potential issue with the EPS.
- In some cases, the steering wheel may feel 'jittery' or unstable during driving.
Possible Causes
Most common causes of C0602 (ordered by frequency):
- The most common cause of C0602 is a faulty Electronic Power Steering (EPS) module, occurring in about 60% of cases. This can be due to wear and tear or electrical failures.
- Another common reason is a problem with the wiring or connectors associated with the EPS system, which can cause intermittent failures and is often related to corrosion or damage.
- A third cause may be low power steering fluid levels, which can affect system pressure and performance. Regular maintenance and checks can help prevent this issue.
- In less common cases, a failing steering column position sensor can trigger C0602, leading to inaccurate readings for the EPS system.
- Rarely, a malfunctioning powertrain control module (PCM) can lead to C0602, although this is a less frequent occurrence.
C0602 Repair Costs
Cost Breakdown by Repair Type
EPS Module Replacement
Replacing the faulty Electronic Power Steering module with a new one.
- Total: $800 - $1,200
- Success rate: 90%
Wiring Repair
Repairing or replacing damaged wiring or connectors associated with the EPS system.
- Total: $150 - $400
- Success rate: 85%
Money-Saving Tips for C0602
- 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 C0602 Diagnosis Process
Follow these systematic steps to accurately diagnose C0602. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Perform an initial visual inspection
Step 1: Perform an initial visual inspection. Check for damaged wiring, loose connections, or corrosion around the EPS module. This should take about 5-10 minutes.
Step 2: Step 2: Use an OBD2 scanner, such as the GeekOBD APP, to retrieve all codes and freeze frame data
Step 2: Use an OBD2 scanner, such as the GeekOBD APP, to retrieve all codes and freeze frame data. This helps in understanding the context of the fault and may take 10-15 minutes.
Step 3: Step 3: Conduct component testing using a multimeter or appropriate diagnostic tools to test the EPS module and related components
Step 3: Conduct component testing using a multimeter or appropriate diagnostic tools to test the EPS module and related components. This step may take 20-30 minutes.
Step 4: Step 4: After making any repairs, perform a system function test to ensure everything operates correctly and clear the codes
Step 4: After making any repairs, perform a system function test to ensure everything operates correctly and clear the codes. This should take about 10-15 minutes.
Step 5: Step 5: Finally, complete a road test under various conditions to confirm the repair's success and ensure the steering system operates smoothly
Step 5: Finally, complete a road test under various conditions to confirm the repair's success and ensure the steering system operates smoothly. This typically takes 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: Ford Escape EPS Module Replacement
Vehicle: 2015 Ford Escape, 75,000 miles
Problem: Customer reported heavy steering and illuminated check engine light.
Diagnosis: An OBD2 scan revealed C0602. A visual inspection showed corrosion on wiring connecting to the EPS module.
Solution: Replaced the EPS module and cleaned all electrical connections.
Cost: $1,100 (including parts and labor)
Result: Customer reported smooth steering and no further issues after repair.
Case Study 2: Wiring Repair on 2014 Ford Fusion
Vehicle: 2014 Ford Fusion, 60,000 miles
Problem: Driver experienced intermittent steering assist failure and C0602 code.
Diagnosis: Found damaged wiring leading to the EPS module.
Solution: Repaired the wiring and verified the EPS module was functioning correctly.
Cost: $300 (parts and labor)
Result: Steering performance returned to normal with no further codes.