P124F GMC Code - Cylinder 8 Injector High 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 8, Fuel Injector 8 harness is open or shorted, Fuel Injector 8 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
- P124F GMC indicates Cylinder 8 Injector High Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Faulty Fuel Injector 8, Fuel Injector 8 harness is open or shorted, Fuel Injector 8 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 P124F GMC Description
What are the Possible Causes of the DTC P124F GMC?
- Faulty Fuel Injector 8
- Fuel Injector 8 harness is open or shorted
- Fuel Injector 8 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P124F GMC?
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 P124F GMC 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.
Need more information about the P124F GMC code?
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Need Help with the Code?
Get the P124F GMC code diagnosed by a professional: Find a repair shop in your area
Information for Specific GMC Models
- P124F 2014 GMC Sierra — Cylinder 8 Injector High Control Circuit Shorted to Control Circuit
- P124F 2015 GMC Sierra — Cylinder 8 Injector High Control Circuit Shorted to Control Circuit
- P124F 2016 GMC Sierra — Cylinder 8 Injector High Control Circuit Shorted to Control Circuit
- P124F 2017 GMC Sierra — Cylinder 8 Injector High Control Circuit Shorted to Control Circuit
- P124F 2018 GMC Sierra — Cylinder 8 Injector High Control Circuit Shorted to Control Circuit
Frequently Asked Questions about P124F GMC Code
1. What are the common symptoms of OBDII code P124F GMC?
- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and the illumination of the check engine light.
2. What can cause the OBDII code P124F GMC to trigger?
- The code may be triggered by a short circuit between the control circuit and the injector in cylinder 8 of the GMC vehicle.
3. How serious is the OBDII code P124F GMC?
- While the vehicle may still be operable with this code, it is important to address it promptly to avoid potential damage to the engine and ensure optimal performance.
4. How can I diagnose the Cylinder 8 Injector High Control Circuit Shorted to Control Circuit issue?
- Diagnosis typically involves using an OBDII scanner to read the code, followed by inspecting the wiring and connections related to the injector in cylinder 8.
5. Can I drive my GMC vehicle with OBDII code P124F?
- It is generally recommended to limit driving until the issue is resolved to prevent further damage and maintain the vehicle's performance.
6. What is the typical repair process for OBDII code P124F GMC?
- Repair usually involves repairing or replacing the wiring harness, addressing any short circuits, and ensuring proper connection of the injector in cylinder 8.
7. Are there any DIY tips for addressing the Cylinder 8 Injector High Control Circuit Shorted to Control Circuit problem?
- DIY enthusiasts with automotive experience can attempt to visually inspect the wiring and connections related to the injector in cylinder 8 before seeking professional help.
8. Is it necessary to reset the OBDII code P124F GMC after the issue is fixed?
- Yes, it is important to clear the code using an OBDII scanner after the repair to reset the check engine light and ensure the problem has been resolved.
9. How can I prevent OBDII code P124F GMC from occurring in the future?
- Regular maintenance, including checking and cleaning injector connections, can help prevent issues like a control circuit short in cylinder 8.
10. Can a mechanic help me with fixing the Cylinder 8 Injector High Control Circuit Shorted to Control Circuit issue?
- Yes, a qualified mechanic can diagnose and repair the problem, ensuring proper resolution and optimal performance of your GMC vehicle.
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