P1249 2014 GMC Sierra Code - Injector 2 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 2, Fuel Injector 2 harness is open or shorted, Fuel Injector 2 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
- P1249 2014 GMC Sierra indicates Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Faulty Fuel Injector 2, Fuel Injector 2 harness is open or shorted, Fuel Injector 2 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 P1249 2014 GMC Sierra Description
What are the Possible Causes of the DTC P1249 2014 GMC Sierra?
- Faulty Fuel Injector 2
- Fuel Injector 2 harness is open or shorted
- Fuel Injector 2 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P1249 2014 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 P1249 2014 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 P1249 2014 GMC Sierra Code
What does the OBDII code P1249 mean for a 2014 GMC Sierra?
P1249 indicates an issue with Injector 2, specifically that the positive voltage control circuit is shorted to the control circuit.
What are the symptoms of code P1249 in a 2014 GMC Sierra?
Common symptoms include rough idling, misfires, reduced engine performance, poor fuel economy, and the check engine light illuminating.
What causes the P1249 code on a 2014 GMC Sierra?
Potential causes include a short in the Injector 2 wiring, a faulty fuel injector, a damaged connector, or a malfunctioning engine control module (ECM).
How can I diagnose the P1249 code on my 2014 GMC Sierra?
Start by inspecting the wiring and connectors for Injector 2 for damage or corrosion. Use a multimeter to check for shorts or continuity issues.
Can I drive my 2014 GMC Sierra with the P1249 code active?
Driving with this code can lead to poor engine performance and potential damage to other engine components. It’s best to address the issue promptly.
How do I fix the P1249 code on a 2014 GMC Sierra?
Repairs may include repairing or replacing damaged wiring, cleaning or replacing the Injector 2 connector, replacing the fuel injector, or reprogramming or replacing the ECM if necessary.
How much does it cost to fix the P1249 code on a 2014 GMC Sierra?
The cost can vary, but repairing wiring or replacing the fuel injector typically ranges from $100 to $400. ECM replacement can cost significantly more.
What tools do I need to diagnose and repair the P1249 code?
You’ll need a multimeter, an OBDII scanner, and basic tools for inspecting and repairing wiring and connectors.
Could a faulty ECM cause the P1249 code on my 2014 GMC Sierra?
Yes, a malfunctioning ECM could potentially cause this code, but it’s less common than wiring or injector issues.
Will clearing the P1249 code fix the problem?
Clearing the code may turn off the check engine light temporarily, but the underlying issue must be resolved to prevent the code from returning.
Discuss the causes and fixes for P1249 2014 GMC Sierra OBDII Code
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