C0928 - DTC C0928 - Understanding the Traction Control Module Error in 2015-2020 Chevrolet Silverado

Quick Answer

C0928 means: C0928 indicates a traction control module communication error.

Fix: Check and replace faulty components Cost: $300 - $800 Time: 90-180 minutes

Can I drive with C0928? Immediate attention is advised to maintain vehicle safety.

Common Questions

What does C0928 mean and how does it affect my car?

C0928 indicates a problem with the traction control module, which is vital for maintaining vehicle stability. If this module fails, your car may struggle to maintain traction on slippery surfaces, causing safety concerns while driving.

What are the most common causes of C0928 and how much does it cost to fix?

The most common causes of C0928 include a faulty traction control module, wiring issues, and sensor malfunctions. 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 C0928 or should I stop immediately?

While you can technically drive your vehicle, it is not advisable to do so until the issue is resolved. Driving with a malfunctioning traction control system can increase your risk of losing control in slippery conditions.

How can I diagnose C0928 myself using GeekOBD APP?

To diagnose C0928, use the GeekOBD APP to read diagnostic trouble codes and freeze frame data, which will help you understand the fault context and guide your troubleshooting efforts.

What vehicles are most commonly affected by C0928?

Commonly affected vehicles include the 2015-2020 Chevrolet Silverado, GMC Sierra, and some models of Cadillac and Buick. Owners of these vehicles should be particularly vigilant about traction control warnings.

How can I prevent C0928 from happening again?

Regular maintenance checks of the traction control system, including wiring inspections and software updates, can help prevent future occurrences of C0928. Ensure your vehicle is serviced regularly and use protective coverings for electrical components.

What is C0928?

DTC C0928 is a diagnostic trouble code that indicates a fault within the traction control module of your vehicle. This code is particularly common in models like the 2015-2020 Chevrolet Silverado and other GM vehicles. When this code appears, it means that the traction control system (TCS) is unable to communicate effectively with the vehicle's onboard computer, which can lead to compromised vehicle stability and control. The traction control system plays a crucial role in maintaining traction on slippery surfaces by preventing wheel spin. If the system is impaired due to the C0928 code, you may notice that your vehicle's ability to maintain grip on wet or icy roads is diminished. This can manifest as a warning light on your dashboard, and you may also experience reduced acceleration or a lack of response when trying to accelerate. In the long run, ignoring this code can lead to more severe issues, such as the system failing entirely or affecting other linked systems such as anti-lock brakes. As a car owner, it’s essential to address this issue promptly to ensure your vehicle’s safety and performance.

System: C - Chassis (ABS, Steering, Suspension)

Symptoms

Common symptoms when C0928 is present:

The traction control warning light on your dashboard may illuminate, indicating a system malfunction.
You might notice a lack of acceleration response during slippery conditions, making driving hazardous.
The vehicle may exhibit inconsistent braking performance, especially when traction is compromised on wet or icy roads.
In some cases, you may hear unusual noises from the traction control module when engaging the system.
Your vehicle's stability on curves and during sudden maneuvers may feel compromised, increasing risk while driving.

Possible Causes

Most common causes of C0928 (ordered by frequency):

{'cause': 'Faulty Traction Control Module (40%)', 'details': 'The most common cause of the C0928 code is a malfunctioning traction control module, which can occur due to age, exposure to moisture, or electrical issues.'}
{'cause': 'Wiring Issues (25%)', 'details': 'Damaged or corroded wiring and connectors leading to the module can disrupt communication, causing the C0928 code to set.'}
{'cause': 'Sensor Malfunctions (20%)', 'details': 'Faulty wheel speed sensors can send incorrect data to the TCS, leading to errors and triggering the C0928 code. Regular inspections can help prevent this.'}
{'cause': 'Software Glitches (10%)', 'details': "Occasionally, software issues within the vehicle's computer can cause false codes. A software update may resolve this problem."}
{'cause': 'Mechanical Issues (5%)', 'details': 'Less commonly, mechanical problems such as differential malfunctions can affect the traction control system, necessitating a thorough inspection.'}

C0928 Repair Costs

Cost Breakdown by Repair Type

Traction Control Module Replacement

Replacing the faulty traction control module with a new unit.

Total: $300 - $800
Success rate: 85%

Wiring Repair

Repairing damaged or corroded wiring and connectors.

Total: $100 - $300
Success rate: 90%

Money-Saving Tips for C0928

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 C0928 Diagnosis Process

Follow these systematic steps to accurately diagnose C0928. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Perform an initial visual inspection - Look for obvious signs like damaged wiring, loose connections, or corrosion at the traction control module (5-10 minutes)

Step 1: Perform an initial visual inspection - Look for obvious signs like damaged wiring, loose connections, or corrosion at the traction control module (5-10 minutes).