P0703 2014 GMC Sierra Code - Brake Switch Signal Message Counter Incorrect
Quick Answer
The P0703 code on a 2014 GMC Sierra indicates that the Brake Switch Signal Message Counter is incorrect. Common causes include Faulty brake switch, Wiring issues, Computer system malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0703 2014 GMC Sierra indicates Brake Switch Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty brake switch, Wiring issues, Computer system malfunction.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0703 2014 GMC Sierra Description
The P0703 code on a 2014 GMC Sierra indicates that the Brake Switch Signal Message Counter is incorrect. This means that the message counter for the brake switch signal is not matching the expected value, which can lead to issues with the vehicle's brake system. The brake switch signal is an important input for the vehicle's computer system, as it informs the vehicle when the brakes are being applied. When the message counter is incorrect, it can cause the vehicle's computer to misinterpret the brake status, leading to potential safety concerns and performance issues.
Common Causes of P0703 2014 GMC Sierra
- Faulty brake switch
- Wiring issues
- Computer system malfunction
- Corrosion or damage to electrical connections
- Software glitches in the vehicle's computer system
Symptoms of P0703 2014 GMC Sierra
- Erratic brake behavior, such as delayed response
- Brake lights staying on when not braking
- Malfunctioning traction control or stability control systems
- Dashboard warning lights related to brake system
How to Fix P0703 2014 GMC Sierra
- Check and test the brake switch for proper functionality
- Inspect and repair any damaged wiring or connections
- Clear the diagnostic trouble codes and reset the message counter
- Update the vehicle's software if necessary
- Conduct a thorough test drive to ensure the issue is resolved
Cost to Fix P0703 2014 GMC Sierra
The typical repair costs for addressing a P0703 code on a 2014 GMC Sierra can range from $100 to $300, depending on the specific cause of the issue and the labor rates at the auto repair shop. This estimate includes the cost of parts, such as a new brake switch if needed, and labor for diagnosis and repair. It's important to note that the actual repair costs can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to check with local auto repair shops for a more accurate cost estimate.
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Frequently Asked Questions about P0703 2014 GMC Sierra Code
1. What does the P0703 code mean on a 2014 GMC Sierra?
The P0703 code indicates an issue with the brake switch signal, specifically that the message counter is incorrect or not functioning as expected.
2. What are the symptoms of the P0703 code in a 2014 GMC Sierra?
Common symptoms include the brake lights not working properly, the transmission not shifting correctly, or the cruise control failing to engage.
3. What causes the P0703 code to appear?
The code is often caused by a faulty brake light switch, wiring issues, a malfunctioning transmission control module (TCM), or software-related errors.
4. Can I drive my 2014 GMC Sierra with the P0703 code?
While the vehicle may still be drivable, it’s not recommended as it can affect safety features like brake lights and cruise control functionality.
5. How do I diagnose the P0703 code in a 2014 GMC Sierra?
Start by inspecting the brake light switch and its wiring for damage or loose connections, then use a scan tool to monitor brake switch signals and confirm the functionality.
6. What is the most common fix for the P0703 code?
The most common fix is replacing the faulty brake light switch and ensuring all related wiring and connections are secure.
7. How much does it cost to repair the P0703 code in a 2014 GMC Sierra?
Repair costs can range from $50 to $150 for a brake light switch replacement, depending on labor rates and part prices.
8. Can a P0703 code cause transmission problems?
Yes, incorrect brake switch signals can affect how the transmission shifts, potentially leading to performance issues.
9. Will resetting the code fix the P0703 issue?
Clearing the code without addressing the root cause will only provide a temporary fix, as the code will likely return.
10. Does the P0703 code affect the ABS or stability control systems?
It can, as the brake switch signal is often used by these systems to monitor braking activity.
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