Quick Answer
C0698 means: C0698 indicates a performance issue with the power steering control module.
Can I drive with C0698? Immediate attention is advised to ensure safe vehicle operation.
Common Questions
What does C0698 mean and how does it affect my car?
C0698 indicates a performance issue with the power steering control module, which can lead to difficulties in steering and may affect overall vehicle safety. If this issue is not addressed, it can worsen, potentially resulting in a complete loss of power steering assist.
What are the most common causes of C0698 and how much does it cost to fix?
Common causes include a faulty power steering control module, issues with the steering angle sensor, and damaged wiring. Repair costs can range from $100 for wiring repairs to $800 for module replacement, depending on the specific issue.
Can I drive my car with C0698 or should I stop immediately?
It's advisable to stop driving if you receive this code, as it can lead to more severe steering issues. Continuing to drive may compromise your ability to steer safely.
How can I diagnose C0698 myself using GeekOBD APP?
Using the GeekOBD APP, you can scan for diagnostic trouble codes, view freeze frame data, and monitor live data related to the power steering system. This will help you identify the specific issue causing C0698.
What vehicles are most commonly affected by C0698?
C0698 is frequently seen in models like the 2015-2020 Chevrolet Silverado and GMC Sierra, particularly those equipped with electronic power steering systems. Check for any recalls or technical service bulletins related to the power steering system.
How can I prevent C0698 from happening again?
Regular maintenance checks of your vehicle's power steering system, including fluid level checks and visual inspections of wiring and connectors, can help prevent C0698 from occurring again.
What is C0698?
The diagnostic trouble code (DTC) C0698 relates to a performance issue detected in the power steering control module (PSCM). This code typically indicates that the vehicle's onboard diagnostic system has registered a malfunction within the electronic power steering system. The PSCM is responsible for regulating the power assist provided to the steering mechanism, enhancing driver control and comfort. When this code appears, you may experience symptoms such as difficulty in steering, unusual noises when turning the wheel, or even the power steering warning light illuminating on your dashboard. In many modern vehicles, such as the 2015-2020 Chevrolet Silverado and GMC Sierra, the power steering system is electronically controlled, making it vital to diagnose issues promptly. Ignoring this code can lead to more significant problems, including total loss of steering assist, which poses a serious safety risk. Regular maintenance and timely diagnostics can help prevent issues associated with DTC C0698, ensuring that you maintain optimal vehicle performance and safety.
System: C - Chassis (ABS, Steering, Suspension)
Symptoms
Common symptoms when C0698 is present:
- The power steering warning light illuminates, indicating a potential failure in the steering system.
- Steering becomes difficult, especially at low speeds, making maneuvering the vehicle challenging.
- Unusual noises, such as whining or grinding, occur when turning the steering wheel.
- A feeling of looseness or play in the steering wheel can be experienced while driving.
- Inconsistent steering response, where turning the wheel does not translate smoothly into vehicle movement.
Possible Causes
Most common causes of C0698 (ordered by frequency):
- The most common cause of C0698 is a malfunctioning power steering control module, which accounts for about 60% of cases. This can occur due to electrical faults or internal component failures.
- Another frequent cause is issues with the steering angle sensor, which can lead to incorrect signals being sent to the PSCM, affecting its performance.
- Worn or damaged wiring harnesses can also contribute to this code, as frayed wires may interrupt the power supply to the PSCM.
- Less commonly, hydraulic system failures, including low power steering fluid levels or pump malfunctions, can trigger this code.
- A rare but possible cause is software glitches within the vehicle's ECU, which may require a software update to resolve.
C0698 Repair Costs
Cost Breakdown by Repair Type
Power Steering Control Module Replacement
Replacing the malfunctioning power steering control module to restore proper function.
- Total: $400 - $800
- Success rate: 85%
Wiring Repair
Repairing or replacing damaged wiring in the power steering system.
- Total: $100 - $300
- Success rate: 75%
Money-Saving Tips for C0698
- 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 C0698 Diagnosis Process
Follow these systematic steps to accurately diagnose C0698. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Initial visual inspection - Check for damaged wiring, loose connections, or signs of corrosion around the power steering control module (5-10 minutes)
Step 1: Initial visual inspection - Check for damaged wiring, loose connections, or signs of corrosion around the power steering control module (5-10 minutes).
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context and any related issues (10-15 minutes)
Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context and any related issues (10-15 minutes).
Step 3: Step 3: Component testing - Use a multimeter to test the power steering control module and related sensors for proper functionality (20-30 minutes)
Step 3: Component testing - Use a multimeter to test the power steering control module and related sensors for proper functionality (20-30 minutes).
Step 4: Step 4: System function test - Verify the operation of the power steering system after repairs and clear codes using the GeekOBD APP (10-15 minutes)
Step 4: System function test - Verify the operation of the power steering system after repairs and clear codes using the GeekOBD APP (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm that the power steering system is functioning correctly (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm that the power steering system is functioning correctly (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: Power Steering Control Module Replacement on 2018 Chevrolet Silverado
Vehicle: 2018 Chevrolet Silverado, 45,000 miles
Problem: Customer reported steering difficulty and warning light illumination.
Diagnosis: Diagnostic scan revealed code C0698. Visual inspection showed corrosion on the power steering control module's connectors.
Solution: Replaced the power steering control module and cleaned all connectors.
Cost: $650 (parts: $450, labor: $200)
Result: Steering performance restored, and the warning light cleared.
Case Study 2: Wiring Repair for 2019 GMC Sierra
Vehicle: 2019 GMC Sierra, 30,000 miles
Problem: Customer experienced intermittent steering assist loss and heard grinding noises.
Diagnosis: Scan revealed C0698. Inspection indicated damaged wiring near the power steering module.
Solution: Repaired the damaged wiring harness and ensured proper electrical connections.
Cost: $200 (parts: $50, labor: $150)
Result: No further issues, and vehicle performance returned to normal.