P0703 Chevrolet Code - Brake Switch Signal Message Counter Incorrect
Quick Answer
The P0703 code for Chevrolet vehicles indicates that the Brake Switch Signal Message Counter is incorrect. Common causes include Faulty brake switch, Wiring issues (e.g., frayed or damaged wires), Corrosion in the electrical connections. 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 Chevrolet indicates Brake Switch Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty brake switch, Wiring issues (e.g., frayed or damaged wires), Corrosion in the electrical connections.
- 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 Chevrolet Description
The P0703 code for Chevrolet vehicles indicates that the Brake Switch Signal Message Counter is incorrect. This means that the signal being sent by the brake switch is not being received or interpreted correctly by the vehicle's onboard computer system. The brake switch is a crucial component in the vehicle's braking system, as it is responsible for sending a signal to the computer to indicate when the brakes are being applied. When this signal is not being properly received, it can lead to issues with the vehicle's performance and safety.
Common Causes of P0703 Chevrolet
- Faulty brake switch
- Wiring issues (e.g., frayed or damaged wires)
- Corrosion in the electrical connections
- Faulty transmission control module
- Software issues in the vehicle's onboard computer system
Symptoms of P0703 Chevrolet
- Erratic shifting patterns
- Transmission hesitation when accelerating
- Cruise control not disengaging when brakes are applied
- Check Engine Light illuminated
- Difficulty starting the vehicle
How to Fix P0703 Chevrolet
- Begin by diagnosing the issue with a scan tool to confirm the P0703 code and identify the specific cause of the problem.
- Inspect the brake switch and wiring for any visible damage or corrosion. Replace any damaged components as needed.
- Test the brake switch to ensure it is functioning correctly and sending the proper signal to the transmission control module.
- Check the transmission control module for any faults or errors. Reset or reprogram the module if necessary.
- Clear the fault code and test drive the vehicle to ensure that the issue has been resolved.
Cost to Fix P0703 Chevrolet
The typical repair costs for addressing a P0703 code on a Chevrolet vehicle can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.
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Information for Specific Chevrolet Models
- P0703 2014 Chevrolet Silverado — Brake Switch Signal Message Counter Incorrect
- P0703 2015 Chevrolet Silverado — Brake Switch Signal Message Counter Incorrect
- P0703 2016 Chevrolet Silverado — Brake Switch Signal Message Counter Incorrect
- P0703 2017 Chevrolet Silverado — Brake Switch Signal Message Counter Incorrect
- P0703 2018 Chevrolet Silverado — Brake Switch Signal Message Counter Incorrect
Frequently Asked Questions about P0703 Chevrolet Code
1. What are the common symptoms of OBDII code P0703 in a Chevrolet related to the Brake Switch Signal Message Counter Incorrect?
- The common symptoms include issues with the brake lights, cruise control not working, and the inability to shift out of Park.
2. What could be the possible causes of OBDII code P0703 in a Chevrolet?
- The potential causes include a faulty brake light switch, damaged wiring or connectors, or issues with the transmission control module.
3. How can I diagnose the OBDII code P0703 in a Chevrolet related to the Brake Switch Signal Message Counter Incorrect?
- You can start by checking the brake lights to see if they are functioning properly, inspecting the brake light switch, and using a diagnostic scanner to read the trouble codes.
4. Can I still drive my Chevrolet with the OBDII code P0703 showing Brake Switch Signal Message Counter Incorrect?
- It is generally not recommended to drive the vehicle with this issue, as it can affect the proper operation of the brake lights and potentially lead to safety hazards.
5. How can I repair OBDII code P0703 in a Chevrolet myself?
- You can try replacing the brake light switch, checking and repairing any damaged wiring, or resetting the trouble codes using an OBDII scanner.
6. Will resetting the trouble codes fix the OBDII code P0703 in a Chevrolet permanently?
- Resetting the trouble codes may temporarily remove the warning light, but if the underlying issue, such as a faulty brake light switch, is not addressed, the code is likely to reappear.
7. Is it necessary to visit a mechanic for OBDII code P0703 in a Chevrolet, or can I fix it myself?
- Depending on your expertise and access to tools, you may be able to fix the issue yourself. However, if you are unsure or if the problem persists, it is recommended to seek professional help.
8. Can a malfunctioning cruise control be related to OBDII code P0703 in a Chevrolet?
- Yes, a faulty brake light switch, which is often the cause of the code, can also impact the cruise control system in the vehicle.
9. Are there any safety implications associated with ignoring OBDII code P0703 in a Chevrolet?
- Ignoring this code can lead to safety concerns, such as other drivers not being able to see when you are braking, potentially resulting in rear-end collisions.
10. How much does it typically cost to repair OBDII code P0703 in a Chevrolet at a professional auto repair shop?
- The cost of repairing this issue can vary depending on the cause and the labor rates of the repair shop. It is advisable to get a diagnostic assessment to determine the exact repair cost.
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