P124C GMC Code - Injector 5 Positive Voltage Control Circuit Shorted to Control Circuit
Quick Answer
The P124C GMC code indicates that there is a problem with the Injector 5 Positive Voltage Control Circuit being shorted to the Control Circuit. Common causes include Short circuit in the positive voltage control circuit, Damaged wiring leading to Injector 5, Loose or corroded 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
- P124C GMC indicates Injector 5 Positive Voltage Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Short circuit in the positive voltage control circuit, Damaged wiring leading to Injector 5, Loose or corroded 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P124C GMC Description
The P124C GMC code indicates that there is a problem with the Injector 5 Positive Voltage Control Circuit being shorted to the Control Circuit. Injectors are crucial components of a vehicle's fuel system, responsible for delivering the right amount of fuel into the combustion chamber at the precise moment. In this case, the issue lies in the control circuit that manages the operation of Injector 5. When the positive voltage control circuit is shorted to the control circuit, it can disrupt the proper functioning of the injector, leading to a variety of performance issues.
Common Causes of P124C GMC
- Short circuit in the positive voltage control circuit
- Damaged wiring leading to Injector 5
- Loose or corroded connections
- Faulty Injector 5
- Electrical issues in the control circuit
Symptoms of P124C GMC
- Rough idling
- Misfires
- Reduced power
- Poor fuel economy
- Stalling
How to Fix P124C GMC
- Begin by conducting a visual inspection of the wiring and connections related to Injector 5 to check for any visible damage or loose connections.
- Use a multimeter to test the continuity and resistance of the wiring to pinpoint any shorts or open circuits.
- Inspect the Injector 5 itself for any signs of damage or malfunction and replace if necessary.
- Repair or replace any damaged wiring, connectors, or components in the control circuit.
- Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P124C GMC
The typical repair costs for addressing a P124C GMC code can vary depending on the extent of the issue and the specific repairs needed. On average, the parts for this repair can range from $100 to $300, while the labor costs can be between $150 and $300. However, it's important to note that these are rough estimates, and the actual costs can differ based on various factors such as location, vehicle make and model, and the shop's labor rates. It's recommended to obtain quotes from local auto repair shops for a more accurate cost estimate.
Need more information about the P124C GMC code?
Need more information on how to fix the P124C GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P124C GMC code diagnosed by a professional: Find a repair shop in your area
Information for Specific GMC Models
- P124C 2014 GMC Sierra — Injector 5 Positive Voltage Control Circuit Shorted to Control Circuit
- P124C 2015 GMC Sierra — Injector 5 Positive Voltage Control Circuit Shorted to Control Circuit
- P124C 2016 GMC Sierra — Injector 5 Positive Voltage Control Circuit Shorted to Control Circuit
- P124C 2017 GMC Sierra — Injector 5 Positive Voltage Control Circuit Shorted to Control Circuit
- P124C 2018 GMC Sierra — Injector 5 Positive Voltage Control Circuit Shorted to Control Circuit
Frequently Asked Questions about P124C GMC Code
1. What are the common symptoms of OBDII code P124C for GMC?
The common symptoms of code P124C may include engine misfires, rough idling, poor acceleration, and the illumination of the Check Engine Light.
2. What usually causes OBDII code P124C in GMC vehicles?
Code P124C is typically triggered when the positive voltage control circuit for Injector 5 is shorted to the control circuit. This can be caused by damaged wiring, a faulty injector, or a problem with the powertrain control module (PCM).
3. How can I diagnose the root cause of OBDII code P124C in my GMC vehicle?
Diagnosing code P124C may involve visually inspecting the wiring harness for damage, testing the injector for proper function, and using a multimeter to check for continuity and voltage at various points in the circuit.
4. Is it safe to continue driving my GMC vehicle with OBDII code P124C present?
It is not recommended to drive your vehicle with an active fault code like P124C, as it can lead to further damage to the engine or emissions system. It is best to address the issue promptly.
5. How can I repair OBDII code P124C in my GMC vehicle?
Repairing code P124C may involve repairing or replacing damaged wiring, replacing the faulty injector, or reprogramming the PCM if necessary. It is recommended to follow a step-by-step diagnostic process to pinpoint the exact cause.
6. Can a DIY enthusiast fix OBDII code P124C, or should I seek professional help?
While some DIY enthusiasts may be able to address code P124C themselves, it is recommended to have a professional mechanic with experience in diagnosing and repairing electrical issues work on this code to ensure a proper fix.
7. Are there any preventive measures to avoid OBDII code P124C in GMC vehicles?
To prevent code P124C, it is advisable to regularly inspect the wiring harness for signs of wear or damage, maintain the fuel system properly, and address any engine performance issues promptly.
8. Will resetting the OBDII system clear code P124C from my GMC vehicle?
Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing P124C is not addressed, the code is likely to reappear once the vehicle is driven and the PCM runs its diagnostic checks.
9. How long does it typically take to repair OBDII code P124C in a GMC vehicle?
The repair time for code P124C can vary depending on the exact cause of the issue and the complexity of the repair. It can range from a quick fix to a more involved repair requiring several hours.
10. Can OBDII code P124C cause any long-term damage to the engine or other components?
If left unresolved, code P124C can lead to engine performance issues, increased fuel consumption, and potential damage to the catalytic converter or other engine components over time. It is crucial to address this code promptly.
Discuss the causes and fixes for P124C GMC OBDII Code
Code P124C GMC comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.