P1249 2014 GMC Sierra Code - Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit
Quick Answer
The P1249 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates that there is a problem with the Injector 2 Positive Voltage Control Circuit being shorted to the Control Circuit. Common causes include Short circuit in the wiring harness, Faulty fuel injector, Issue 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
- P1249 2014 GMC Sierra indicates Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit.
- Common causes
- Common causes include Short circuit in the wiring harness, Faulty fuel injector, Issue 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 P1249 2014 GMC Sierra Description
The P1249 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates that there is a problem with the Injector 2 Positive Voltage Control Circuit being shorted to the Control Circuit. In simpler terms, this means that there is an electrical issue with the fuel injector for cylinder 2. Fuel injectors are responsible for delivering the precise amount of fuel into the combustion chamber at the right time. When this circuit is shorted, it can lead to improper fuel delivery, affecting the engine's performance and efficiency.
Common Causes of P1249 2014 GMC Sierra
- Short circuit in the wiring harness
- Faulty fuel injector
- Issue with the engine control module (ECM)
- Poor connection in the circuit
Symptoms of P1249 2014 GMC Sierra
- Engine misfires
- Rough idling
- Decreased fuel efficiency
- Engine stalling
- Check Engine Light illuminated
How to Fix P1249 2014 GMC Sierra
- Begin by conducting a thorough inspection of the wiring harness and connectors to identify any visible damage or signs of a short circuit.
- Test the fuel injector for cylinder 2 to determine if it is functioning correctly. If necessary, replace the faulty injector.
- Check the engine control module (ECM) for any faults or errors that may be causing the issue. Reset or replace the ECM if needed.
- Ensure all connections in the control circuit are secure and free of corrosion or damage.
- Clear the DTC and test drive the vehicle to confirm that the issue has been resolved.
Cost to Fix P1249 2014 GMC Sierra
The typical repair costs for addressing a P1249 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of parts such as a fuel injector or engine control module can range from $200 to $600, while labor costs can add an additional $100 to $300. Overall, the total repair cost could range from $300 to $900. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.
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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.
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