P0703 2014 GMC Sierra Code - Brake Switch Signal Message Counter Incorrect
Quick Answer
The Body Control Module (BCM) monitors the brake pedal position sensor. Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module circuit poor electrical connection. 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 Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module circuit poor electrical connection.
- 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.
Code P0703 2014 GMC Sierra Description
What are the Possible Causes of the DTC P0703 2014 GMC Sierra?
- Faulty Body Control Module (BCM)
- Body Control Module harness is open or shorted
- Body Control Module circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0703 2014 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0703 2014 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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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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