P0703 2014 Chevrolet Silverado Code - Brake Switch Signal Message Counter Incorrect
Quick Answer
The P0703 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates that the Brake Switch Signal Message Counter is Incorrect. Common causes include Faulty brake switch, Damaged or corroded wiring connecting the brake switch to the computer, Malfunctioning computer module that receives brake switch signals. 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 Chevrolet Silverado indicates Brake Switch Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty brake switch, Damaged or corroded wiring connecting the brake switch to the computer, Malfunctioning computer module that receives brake switch signals.
- 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 Chevrolet Silverado Description
The P0703 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates that the Brake Switch Signal Message Counter is Incorrect. This code is typically associated with an issue in the communication between the brake switch and the vehicle's onboard computer system. The brake switch is a crucial component that signals when the brake pedal is depressed, allowing the vehicle to engage the brakes and control various systems such as cruise control, transmission shifting, and brake lights.
Common Causes of P0703 2014 Chevrolet Silverado
- Faulty brake switch.
- Damaged or corroded wiring connecting the brake switch to the computer.
- Malfunctioning computer module that receives brake switch signals.
- Loose or disconnected connections in the brake switch circuit.
- Software issues in the vehicle's onboard computer system.
Symptoms of P0703 2014 Chevrolet Silverado
- Inability to shift gears smoothly or at all.
- Cruise control not engaging or disengaging unexpectedly.
- Brake lights not functioning properly or staying on continuously.
- Vehicle going into limp mode or experiencing reduced performance.
- Dashboard warning lights, such as the Check Engine Light, illuminated.
How to Fix P0703 2014 Chevrolet Silverado
- Begin by conducting a thorough inspection of the brake switch, wiring, and connections to identify any visible damage or issues.
- Use a multimeter to test the continuity and voltage of the brake switch and wiring to ensure proper functionality.
- Replace the brake switch if it is found to be faulty or damaged.
- Repair or replace any damaged wiring or connections in the brake switch circuit.
- Clear the DTC from the vehicle's computer memory using an OBD-II scanner and perform a test drive to confirm that the issue has been resolved.
Cost to Fix P0703 2014 Chevrolet Silverado
The typical repair costs for addressing a P0703 code on a 2014 Chevrolet Silverado can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. This estimate includes the price of a new brake switch, any necessary wiring repairs, and the labor involved in diagnosing and fixing the problem. Keep in mind that the actual cost may vary based on the extent of the damage and the rates charged by auto repair shops in your location. It's recommended to obtain quotes from multiple shops to ensure you receive a fair price for the repair.
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Frequently Asked Questions about P0703 2014 Chevrolet Silverado Code
1. What does the OBDII code P0703 mean on a 2014 Chevrolet Silverado?
P0703 indicates an issue with the brake switch signal message counter, meaning the transmission control module (TCM) is receiving an incorrect or unexpected signal from the brake switch.
2. What are the common symptoms of code P0703 on a 2014 Chevrolet Silverado?
Symptoms may include the brake lights not functioning properly, transmission shifting issues, or the cruise control not working.
3. What causes the P0703 code to appear on a 2014 Chevrolet Silverado?
Common causes include a faulty brake switch, damaged wiring or connectors in the brake switch circuit, or a malfunctioning transmission control module.
4. Can a faulty brake light switch trigger the P0703 code?
Yes, a faulty or misaligned brake light switch is a primary cause of the P0703 code.
5. How do I diagnose the P0703 code on my Silverado?
Start by checking the brake light function, inspecting the brake switch for alignment, testing the switch with a multimeter, and examining the wiring for damage or loose connections.
6. Is it safe to drive with a P0703 code on a 2014 Chevrolet Silverado?
Driving may be unsafe as the brake lights or cruise control might not work, and transmission shifting could be affected, increasing the risk of an accident.
7. How do I fix the P0703 code on a 2014 Chevrolet Silverado?
Repairs may include replacing the brake switch, repairing or replacing damaged wiring, or reprogramming the TCM if necessary.
8. Can a blown fuse cause the P0703 code?
Yes, a blown fuse in the brake light circuit can cause the P0703 code by disrupting the brake signal to the TCM.
9. Does the P0703 code affect the transmission on a 2014 Chevrolet Silverado?
Yes, the code can affect transmission operation because the TCM relies on accurate brake switch signals for proper shifting behavior.
10. How much does it cost to repair the P0703 code on a 2014 Chevrolet Silverado?
Repair costs vary depending on the issue, but replacing a brake light switch typically costs $50–$150, while wiring repairs or TCM reprogramming may cost more.
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