P124D 2017 GMC Sierra Code - Injector 6 Positive Voltage Control Circuit Shorted to Control Circuit
Quick Answer
The P124D diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a fault in the injector 6 positive voltage control circuit being shorted to the control circuit. Common causes include Damaged wiring or connectors in the injector 6 positive voltage control circuit, Corrosion or rust affecting the electrical connections, Loose or disconnected wiring in the fuel injector system. 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 2017 GMC Sierra indicates Injector 6 Positive Voltage Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Damaged wiring or connectors in the injector 6 positive voltage control circuit, Corrosion or rust affecting the electrical connections, Loose or disconnected wiring in the fuel injector system.
- 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 2017 GMC Sierra Description
The P124D diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a fault in the injector 6 positive voltage control circuit being shorted to the control circuit. This code is specifically related to the fuel injector system of the vehicle. Fuel injectors are responsible for delivering fuel into the engine cylinders in precise amounts and at the correct time to ensure proper combustion. In this case, the control circuit for injector 6, which regulates the flow of fuel, is experiencing a short to the positive voltage control circuit.
Common Causes of P124D 2017 GMC Sierra
- Damaged wiring or connectors in the injector 6 positive voltage control circuit.
- Corrosion or rust affecting the electrical connections.
- Loose or disconnected wiring in the fuel injector system.
- Faulty fuel injector causing a short circuit.
- Electrical issues in the vehicle's wiring harness.
Symptoms of P124D 2017 GMC Sierra
- Check Engine Light illuminated on the dashboard.
- Engine misfires or rough idling.
- Decreased fuel efficiency.
- Stalling or hesitation during acceleration.
- Engine performance issues such as lack of power or hesitation.
How to Fix P124D 2017 GMC Sierra
- Perform a thorough visual inspection of the wiring and connectors in the injector 6 positive voltage control circuit.
- Test the fuel injector for proper operation and check for any signs of damage.
- Repair or replace any damaged wiring, connectors, or components in the control circuit.
- Clear the DTC and reset the Check Engine Light using a diagnostic scan tool.
- Test drive the vehicle to ensure that the issue has been resolved and that the engine operates smoothly.
Cost to Fix P124D 2017 GMC Sierra
The typical repair costs for addressing a P124D code in a 2017 GMC Sierra can vary depending on the extent of the issue and the specific repairs needed. On average, the cost of parts and labor for this type of repair can range from $150 to $500. It's important to note that diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Factors such as the location of the repair shop, the vehicle make and model, and the engine type can also influence the overall cost of the repair. For a more precise estimate, it's recommended to consult with a local auto repair shop.
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Frequently Asked Questions about P124D 2017 GMC Sierra Code
What does the OBDII code P124D mean for a 2017 GMC Sierra?
P124D indicates that the positive voltage control circuit for injector 6 is shorted to the control circuit, causing improper operation of the fuel injector.
What are the common symptoms of code P124D in a 2017 GMC Sierra?
Symptoms may include engine misfire, rough idle, reduced power, poor fuel economy, and the check engine light turning on.
What causes the P124D code in a 2017 GMC Sierra?
The code can be caused by damaged wiring, a faulty injector, short circuits, or issues with the powertrain control module (PCM).
Can driving with code P124D damage my 2017 GMC Sierra?
Yes, prolonged driving with this code can lead to engine damage, reduced performance, and increased fuel consumption.
How can I diagnose code P124D in a 2017 GMC Sierra?
Inspect the wiring and connectors for injector 6, test the injector itself, and check for shorts between the voltage and control circuits.
What tools are needed to troubleshoot code P124D?
You'll need an OBDII scanner, a multimeter, and possibly wiring diagrams specific to your GMC Sierra.
How do I fix code P124D on a 2017 GMC Sierra?
Repair or replace damaged wiring, connectors, or the injector. In some cases, the PCM may need reprogramming or replacement.
Is replacing the injector always required for code P124D?
No, sometimes the issue is with the wiring or circuit and not the injector itself. Proper diagnosis is necessary.
How much does it cost to repair the P124D code on a 2017 GMC Sierra?
Costs vary, but wiring repairs may cost $100-$300, while injector replacement can range from $200-$500 plus labor.
Can a faulty PCM cause code P124D in a 2017 GMC Sierra?
Yes, a malfunctioning PCM can cause electrical issues leading to this code, although it's less common than wiring or injector problems.
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