P124D 2014 GMC Sierra Code - Injector 6 Positive Voltage Control Circuit Shorted to Control Circuit
Quick Answer
The P124D diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates that there is a short circuit between the positive voltage control circuit and the control circuit of injector 6. Common causes include Damaged wiring in the fuel injector circuit, Faulty fuel injector, Malfunctioning engine control module (ECM). 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
- P124D 2014 GMC Sierra indicates Injector 6 Positive Voltage Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Damaged wiring in the fuel injector circuit, Faulty fuel injector, Malfunctioning engine control module (ECM).
- 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 P124D 2014 GMC Sierra Description
The P124D diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates that there is a short circuit between the positive voltage control circuit and the control circuit of injector 6. In simpler terms, this means that there is an electrical issue in the fuel injector system of the vehicle. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber at the right time. When there is a short circuit between the positive voltage control circuit and the control circuit, it can disrupt the injector's operation, leading to potential performance issues.
Common Causes of P124D 2014 GMC Sierra
- Damaged wiring in the fuel injector circuit
- Faulty fuel injector
- Malfunctioning engine control module (ECM)
- Poor connection in the electrical system
- Corrosion or debris in the injector connectors
Symptoms of P124D 2014 GMC Sierra
- Engine misfires
- Rough idling
- Reduced fuel efficiency
- Hesitation or stumbling during acceleration
- Check Engine Light illuminated
How to Fix P124D 2014 GMC Sierra
- Perform a thorough inspection of the wiring harness and connectors for any signs of damage or corrosion.
- Test the fuel injector to determine if it is functioning correctly.
- Check the engine control module (ECM) for any faults or errors.
- Repair or replace any damaged wiring, connectors, or components as needed.
- Clear the DTC and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P124D 2014 GMC Sierra
The typical repair costs for addressing a P124D code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of parts such as a new fuel injector, wiring harness, or ECM can range from $200 to $800. Labor costs at auto repair shops typically range from $80 to $150 per hour. The total repair cost could range from $300 to $1500, including parts and labor. It is advisable to consult with a professional mechanic for a more accurate estimate based on the specific diagnosis and repair needed for your vehicle.
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Frequently Asked Questions about P124D 2014 GMC Sierra Code
What does the OBDII code P124D mean on a 2014 GMC Sierra?
The P124D code indicates that the Injector 6 Positive Voltage Control Circuit is shorted to the control circuit, meaning there’s an electrical issue with injector 6's wiring or components.
What are the common symptoms of the P124D code in a 2014 GMC Sierra?
Symptoms may include rough idling, misfiring, reduced engine performance, poor fuel economy, and an illuminated check engine light.
What causes the P124D code to appear?
Common causes include damaged or shorted wiring for injector 6, a faulty fuel injector, a malfunctioning engine control module (ECM), or loose electrical connections.
How can I diagnose the P124D code on a 2014 GMC Sierra?
Start by inspecting the wiring and connectors for injector 6 for damage or corrosion. Use a multimeter to check for shorts or continuity issues, and test the injector and ECM for proper functionality.
Can I drive my 2014 GMC Sierra with the P124D code?
It is not recommended to drive with this code, as it can cause engine misfires and reduced performance, potentially leading to further damage.
How do I fix the P124D code on a 2014 GMC Sierra?
Repairs may include replacing or repairing damaged wiring, cleaning or reconnecting loose connectors, replacing the faulty injector, or, in rare cases, replacing the ECM.
Is the P124D code specific to injector 6?
Yes, this code specifically refers to a short circuit issue in the voltage control circuit for injector 6.
How much does it cost to repair the P124D code?
Repair costs vary depending on the issue. Wiring repairs may cost $50-$200, while replacing an injector can cost $200-$500. ECM replacement is more expensive, ranging from $500-$1,500.
Can a clogged fuel injector cause the P124D code?
No, this code is related to an electrical short, not a mechanical clog. A clogged injector would typically trigger a different code.
Does the P124D code require special tools to fix?
Yes, diagnosing and repairing this code may require tools like a multimeter, a scan tool, and possibly injector testing equipment.
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