P124E 2017 GMC Sierra Code - Cylinder 7 Injector High Control Circuit Shorted to Control Circuit
Quick Answer
The P124E diagnostic trouble code for a 2017 GMC Sierra indicates that there is a short circuit in the control circuit of the fuel injector for cylinder 7. Common causes include Wiring harness damage or wear, Faulty fuel injector, Corrosion in the electrical connections. 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 2017 GMC Sierra indicates Cylinder 7 Injector High Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Wiring harness damage or wear, Faulty fuel injector, Corrosion in the electrical connections.
- 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 2017 GMC Sierra Description
The P124E diagnostic trouble code for a 2017 GMC Sierra indicates that there is a short circuit in the control circuit of the fuel injector for cylinder 7. The fuel injector control circuit is responsible for regulating the amount of fuel that is injected into the combustion chamber. When this circuit is shorted, it can lead to issues with fuel delivery to the engine, affecting its performance and efficiency. This can result in poor fuel economy, rough idling, misfires, and potentially even engine stalling. If left unaddressed, the continuous short circuit can cause damage to the fuel injector and other components of the fuel system.
Common Causes of P124E 2017 GMC Sierra
- Wiring harness damage or wear
- Faulty fuel injector
- Corrosion in the electrical connections
- Issues with the Engine Control Module (ECM)
- Short circuit due to water intrusion or debris in the engine bay
Symptoms of P124E 2017 GMC Sierra
- Rough idling
- Reduced fuel efficiency
- Engine misfires
- Engine stalling
- Check engine light illuminated
How to Fix P124E 2017 GMC Sierra
- Begin by inspecting the wiring harness and electrical connections for any signs of damage or wear. Repair or replace any damaged wires or connectors.
- Check the fuel injector for proper operation and replace it if necessary.
- Clear the trouble code from the ECM using a diagnostic scanner.
- Test drive the vehicle to ensure that the issue has been resolved and that the symptoms have been eliminated.
- If the problem persists, further diagnosis may be required to pinpoint the exact cause of the short circuit.
Cost to Fix P124E 2017 GMC Sierra
The typical repair costs for addressing a P124E code on a 2017 GMC Sierra can vary depending on the specific cause of the issue. On average, the cost of parts for a fuel injector replacement can range from $150 to $300, while labor costs can add an additional $100 to $200. Overall, the total repair cost could range from $250 to $500. However, it's important to note that these are rough estimates, and actual costs may vary based on factors such as location, shop rates, and additional diagnostic and repair needs.
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Frequently Asked Questions about P124E 2017 GMC Sierra Code
What does the OBDII code P124E mean on a 2017 GMC Sierra?
The P124E code indicates that there is a short circuit between the high control circuit and the control circuit of cylinder 7's fuel injector.
What are the common symptoms of code P124E on a 2017 GMC Sierra?
Symptoms may include engine misfiring, reduced engine performance, rough idling, poor fuel efficiency, or the check engine light being illuminated.
What causes the P124E code on a 2017 GMC Sierra?
The most common causes are damaged or shorted wiring in the injector circuit, a faulty fuel injector, a malfunctioning engine control module (ECM), or corroded electrical connections.
Can I drive my 2017 GMC Sierra with the P124E code?
Driving with this code is not recommended as it can lead to further engine damage, poor performance, and higher emissions. Address the issue as soon as possible.
How do I diagnose the P124E code on a 2017 GMC Sierra?
Diagnosis typically involves checking the wiring and connectors for damage, testing the cylinder 7 fuel injector, and using a multimeter to measure circuit continuity and resistance.
What tools are needed to troubleshoot the P124E code?
You’ll need a diagnostic scan tool, a multimeter, and possibly an injector tester to properly troubleshoot the issue.
How do I fix the P124E code on a 2017 GMC Sierra?
Common repairs include repairing or replacing damaged wiring, cleaning or replacing corroded connectors, replacing the faulty injector, or reprogramming/repairing the ECM if necessary.
What is the cost to repair the P124E code on a 2017 GMC Sierra?
The repair cost can range from $150 to $500 or more, depending on whether the issue is related to wiring, the injector, or the ECM.
Can a bad fuel injector cause the P124E code on a 2017 GMC Sierra?
Yes, a faulty or shorted fuel injector for cylinder 7 can trigger this code by disrupting the circuit.
How can I prevent the P124E code from occurring again?
Regular maintenance, inspecting wiring for wear or damage, and ensuring the fuel system components are clean and functional can help prevent this code.
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