P124D 2017 GMC Sierra Code - Injector 6 Positive Voltage Control Circuit Shorted to Control Circuit
Quick Answer
The Engine Control Module (ECM) supplies voltage to each fuel injector on the injector high voltage supply circuits. Common causes include Faulty Fuel Injector 6, Fuel Injector 6 harness is open or shorted, Fuel Injector 6 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
- P124D 2017 GMC Sierra indicates Injector 6 Positive Voltage Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Faulty Fuel Injector 6, Fuel Injector 6 harness is open or shorted, Fuel Injector 6 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 P124D 2017 GMC Sierra Description
What are the Possible Causes of the DTC P124D 2017 GMC Sierra?
- Faulty Fuel Injector 6
- Fuel Injector 6 harness is open or shorted
- Fuel Injector 6 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P124D 2017 GMC Sierra?
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 P124D 2017 GMC Sierra 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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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.
Discuss the causes and fixes for P124D 2017 GMC Sierra OBDII Code
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