Quick Answer
B0668 means: B0668 refers to a power seat switch circuit issue.
Can I drive with B0668? While the vehicle can be driven, it is advisable to address the issue soon to avoid further complications.
Common Questions
What does B0668 mean and how does it affect my car?
B0668 indicates a problem with the power seat switch circuit, which may prevent seat adjustments. This can lead to discomfort and affect driver safety. Addressing this code ensures your seat functions properly.
What are the most common causes of B0668 and how much does it cost to fix?
Common causes include a faulty power seat switch and wiring issues, with repair costs typically ranging from $100 to $250, depending on the specific problem.
Can I drive my car with B0668 or should I stop immediately?
While you can drive your vehicle, it is advisable to address the B0668 code promptly to avoid further complications and ensure comfort while driving.
How can I diagnose B0668 myself using GeekOBD APP?
Using the GeekOBD APP, scan your vehicle for codes, review freeze frame data, and test the power seat switch's functionality to diagnose the issue effectively.
What vehicles are most commonly affected by B0668?
B0668 is frequently seen in 2005-2015 Chevrolet and GMC models, including popular vehicles like the Chevrolet Silverado and GMC Sierra.
How can I prevent B0668 from happening again?
Regular maintenance, including checking wiring and connections, can prevent B0668. Ensure that seat adjustment mechanisms are clean and free from debris.
What is B0668?
The diagnostic trouble code (DTC) B0668 indicates a problem with the power seat switch circuit, specifically relating to range or performance issues. This code is commonly found in various Chevrolet and GMC models manufactured between 2005 and 2015. When the vehicle's onboard computer detects that the power seat adjustments are not functioning within expected parameters, it triggers this code. This can result from a faulty power seat switch, wiring issues, or problems with the seat control module itself. Real-world implications of a B0668 code can include an inability to adjust the power seat, which could lead to discomfort while driving. If left unaddressed, it may lead to further electrical issues or even affect other systems in the vehicle. Regular diagnostics using tools like the GeekOBD APP can help in identifying the underlying issues quickly, enabling timely repairs. It's essential to address this code promptly to ensure the comfort and safety of the driver and passengers.
System: B - Body (Airbags, Lighting, Security, Climate Control)
Symptoms
Common symptoms when B0668 is present:
- The power seat does not move at all when the switch is activated, making adjustments impossible.
- The power seat only moves in one direction, leading to discomfort for the driver or passengers.
- The check engine light or warning light for the seat control system stays illuminated, indicating an ongoing issue.
- Intermittent operation of the seat adjustments, where the seat may work sometimes and not at others, causing frustration.
- Unusual noises from the seat mechanism during adjustment attempts, possibly indicating mechanical failure.
Possible Causes
Most common causes of B0668 (ordered by frequency):
- The most common cause is a faulty power seat switch, which is responsible for sending signals to the seat adjustment motor. This issue has a likelihood of around 60%.
- Wiring problems, including damaged or corroded wires in the seat control circuit, can also lead to this code. It's crucial to check the wiring harness for wear.
- A malfunctioning seat control module may fail to process the signals from the power seat switch properly, leading to a performance error. Regular maintenance helps prevent this.
- Less common but serious causes include a short circuit in the seat adjustment system, which could lead to complete failure of the power seat mechanism.
- Rarely, issues with the vehicle's body control module (BCM) can cause miscommunication between the power seat switch and the seat motor.
B0668 Repair Costs
Cost Breakdown by Repair Type
Power Seat Switch Replacement
Replacing the faulty power seat switch can resolve the B0668 code and restore full functionality to the power seat.
- Total: $100 - $250
- Success rate: 85%
Wiring Repair
Repairing damaged or corroded wiring in the power seat circuit may be necessary if the switch replacement does not resolve the issue.
- Total: $50 - $150
- Success rate: 90%
Money-Saving Tips for B0668
- 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 B0668 Diagnosis Process
Follow these systematic steps to accurately diagnose B0668. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion. This should take about 5-10 minutes.
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context, which takes approximately 10-15 minutes
Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context, which takes approximately 10-15 minutes.
Step 3: Step 3: Component testing - Use a multimeter to test the power seat switch and wiring for continuity
Step 3: Component testing - Use a multimeter to test the power seat switch and wiring for continuity. This could take around 20-30 minutes.
Step 4: Step 4: System function test - After repairs, verify proper operation of the seat adjustments and clear any codes, taking about 10-15 minutes
Step 4: System function test - After repairs, verify proper operation of the seat adjustments and clear any codes, taking about 10-15 minutes.
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success, which should take about 15-20 minutes
Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success, which should take about 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 Seat Switch Replacement on 2010 Chevy Silverado
Vehicle: 2010 Chevrolet Silverado, 85,000 miles
Problem: Customer reported that the driver’s power seat wouldn't move in any direction.
Diagnosis: Initial inspection revealed a faulty power seat switch; OBD2 scan confirmed B0668.
Solution: Replaced the power seat switch, which resolved the issue.
Cost: $150 (Switch: $100, Labor: $50)
Result: The power seat functioned perfectly post-repair, and the customer reported satisfaction.
Case Study 2: Wiring Repair on 2012 GMC Sierra
Vehicle: 2012 GMC Sierra, 60,000 miles
Problem: The power seat only moved forward, not backward.
Diagnosis: A wiring inspection revealed damaged wires in the seat circuit; code B0668 was present.
Solution: Repaired the damaged wiring, ensuring proper functionality.
Cost: $100 (Labor: $50, Wiring: $50)
Result: The power seat operated correctly after the repair, restoring full functionality.