P0703 GMC 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 GMC 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 GMC Description
What are the Possible Causes of the DTC P0703 GMC?
- 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 GMC?
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 GMC 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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Information for Specific GMC Models
- P0703 2014 GMC Sierra — Brake Switch Signal Message Counter Incorrect
- P0703 2015 GMC Sierra — Brake Switch Signal Message Counter Incorrect
- P0703 2016 GMC Sierra — Brake Switch Signal Message Counter Incorrect
- P0703 2017 GMC Sierra — Brake Switch Signal Message Counter Incorrect
- P0703 2018 GMC Sierra — Brake Switch Signal Message Counter Incorrect
Frequently Asked Questions about P0703 GMC Code
1. What are the common symptoms of OBDII code P0703 in a GMC vehicle?
The common symptoms of OBDII code P0703 in a GMC vehicle include issues with the vehicle's brake lights, cruise control not working properly, and difficulty shifting gears.
2. What does the OBDII code P0703 GMC indicate?
OBDII code P0703 in a GMC vehicle indicates that the brake switch signal message counter is incorrect, meaning there is a problem with the signal being sent from the brake switch to the vehicle's computer.
3. What are the possible causes of OBDII code P0703 in a GMC vehicle?
Possible causes of OBDII code P0703 in a GMC vehicle include a faulty brake switch, wiring issues in the brake switch circuit, or a malfunctioning vehicle computer.
4. How can I diagnose OBDII code P0703 in my GMC vehicle?
To diagnose OBDII code P0703 in your GMC vehicle, you can start by checking the brake lights to see if they are working properly, inspecting the brake switch for any visible damage, and using an OBDII scanner to read the error codes.
5. How can I repair OBDII code P0703 in my GMC vehicle?
To repair OBDII code P0703 in your GMC vehicle, you may need to replace the brake switch if it is faulty, repair any damaged wiring in the brake switch circuit, or reprogram the vehicle's computer to correct the signal message counter.
6. Can I continue driving my GMC vehicle with OBDII code P0703?
It is not recommended to continue driving your GMC vehicle with OBDII code P0703, as it can lead to issues with the brake system and potentially affect the vehicle's shifting performance. It is best to address the problem promptly.
7. Is OBDII code P0703 a serious issue in a GMC vehicle?
While OBDII code P0703 may not cause immediate safety concerns, it can impact the overall performance and functionality of your GMC vehicle, especially in terms of the brake system and gear shifting. It is important to address this issue in a timely manner.
8. Can a DIY enthusiast repair OBDII code P0703 in a GMC vehicle?
Depending on your level of automotive expertise, you may be able to repair OBDII code P0703 in your GMC vehicle as a DIY project. However, if you are unsure about the diagnosis or repair process, it is recommended to seek professional help.
9. How much does it typically cost to repair OBDII code P0703 in a GMC vehicle?
The cost to repair OBDII code P0703 in a GMC vehicle can vary depending on the specific cause of the issue, the labor rates in your area, and whether you choose to address the problem yourself or take it to a mechanic. It is advisable to get a few quotes for an accurate estimate.
10. Will resetting the OBDII code P0703 in a GMC vehicle make it go away permanently?
Resetting the OBDII code P0703 in a GMC vehicle may temporarily clear the error code, but if the underlying issue is not addressed and repaired, the code is likely to reappear. It is important to diagnose and fix the root cause of the problem for a permanent solution.
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