P124E 2016 GMC Sierra Code - Cylinder 7 Injector High Control Circuit Shorted to Control Circuit
Quick Answer
The diagnostic trouble code P124E for a 2016 GMC Sierra indicates that there is a problem with the Cylinder 7 Injector High Control Circuit being shorted to the Control Circuit. Common causes include Faulty fuel injector in cylinder 7, Damaged wiring or connectors in the control circuit, Issues with the 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
- P124E 2016 GMC Sierra indicates Cylinder 7 Injector High Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Faulty fuel injector in cylinder 7, Damaged wiring or connectors in the control circuit, Issues with the 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 P124E 2016 GMC Sierra Description
The diagnostic trouble code P124E for a 2016 GMC Sierra indicates that there is a problem with the Cylinder 7 Injector High Control Circuit being shorted to the Control Circuit. This means that there is an electrical issue with the fuel injector in cylinder 7 of the engine. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber for optimal performance. When the control circuit is shorted, it can lead to improper fuel delivery, which can result in a variety of performance issues.
Common Causes of P124E 2016 GMC Sierra
- Faulty fuel injector in cylinder 7
- Damaged wiring or connectors in the control circuit
- Issues with the engine control module (ECM)
- Corrosion or moisture in the electrical connections
- Short circuit due to wear and tear
Symptoms of P124E 2016 GMC Sierra
- Engine misfires
- Rough idling or running
- Decreased power and acceleration
- Poor fuel efficiency
- Engine stalling or failure to start
How to Fix P124E 2016 GMC Sierra
- Diagnose the specific cause of the shorted circuit using a diagnostic scanner and multimeter.
- Inspect the wiring and connectors in the control circuit for any damage or corrosion.
- Test the fuel injector in cylinder 7 to determine if it is functioning properly.
- Replace the faulty fuel injector, repair any damaged wiring or connectors, and clear the trouble code from the ECM.
- Perform a test drive to ensure that the issue has been resolved and that the engine is running smoothly.
Cost to Fix P124E 2016 GMC Sierra
The typical repair costs for addressing a Cylinder 7 Injector High Control Circuit Shorted to Control Circuit issue can vary depending on the specific cause of the problem and the extent of the damage. In general, the cost of replacing a fuel injector can range from $150 to $300 per injector, not including labor costs. The total repair cost, including parts and labor, can range from $300 to $600 or more. It is important to note that the actual cost may vary based on factors such as the location of the repair shop, the make and model of the vehicle, and the hourly labor rates. It is recommended to obtain a detailed estimate from a qualified mechanic before proceeding with the repair.
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Frequently Asked Questions about P124E 2016 GMC Sierra Code
What does the OBDII code P124E mean on a 2016 GMC Sierra?
P124E indicates that the Cylinder 7 Injector High Control Circuit is shorted to the control circuit, meaning there is an electrical issue in the injector circuit for cylinder 7.
What are the symptoms of code P124E in a 2016 GMC Sierra?
Common symptoms include engine misfire, rough idling, reduced power, poor fuel economy, and an illuminated check engine light.
What causes the P124E code to appear?
The code can be caused by a shorted injector, damaged wiring or connectors in the circuit, a faulty injector driver module, or a problem with the engine control module (ECM).
Can I continue driving my 2016 GMC Sierra with the P124E code?
Driving with this code is not recommended as it can lead to further engine damage, increased emissions, and reduced performance.
How is the P124E code diagnosed?
A technician will inspect the injector and circuit wiring for damage, test the injector resistance, and use a scan tool to monitor the injector driver signals.
What tools are needed to troubleshoot the P124E code?
You’ll need a multimeter, a scan tool with live data capabilities, and sometimes an oscilloscope for detailed signal analysis.
How can the P124E code be fixed?
Repairs may include replacing the cylinder 7 injector, repairing or replacing damaged wiring/connectors, or replacing the injector driver module or ECM if faulty.
What is the cost to fix the P124E code on a 2016 GMC Sierra?
Repair costs can vary, ranging from $200 to $800 or more, depending on whether the issue is wiring-related or requires injector/module replacement.
Can a faulty injector cause the P124E code?
Yes, a faulty injector with internal shorting can cause the high control circuit to malfunction, triggering the P124E code.
Is the P124E code specific to GMC vehicles?
While P124E is specific to GM vehicles, similar injector circuit codes may appear on other makes and models with similar issues.
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