AutoCodes – Chevrolet – P1249 2014 Chevrolet Silverado

P1249 2014 Chevrolet Silverado 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 Chevrolet Silverado 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.

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Code Popularity 726

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Aug 12, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1249 2014 Chevrolet Silverado Description

The Engine Control Module (ECM) supplies voltage to each fuel injector on the injector high voltage supply circuits. The ECM energizes each fuel injector by grounding the high voltage control circuit of the fuel injector. The ECM monitors the status of the injector high voltage supply circuits and the fuel injector high voltage control circuits. When a fuel injector circuit condition is detected by the ECM, the affected fuel injector(s) is disabled. The Diagnostic Trouble Code (DTC) will be set if the ECM detects the injector high control circuit is shorted to the low control circuit for greater than 2 s.

OBDII Code P1249 2014 Chevrolet Silverado - Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit - AutoCodes.com — P1249 2014 Chevrolet Silverado Code - Injector 2 Positive Voltage Control Circuit Shorted to Control Circuit

What does this mean?

What are the Possible Causes of the DTC P1249 2014 Chevrolet Silverado?

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 Chevrolet Silverado?

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 Chevrolet Silverado 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 P1249 2014 Chevrolet Silverado code?

Need more information on how to fix the P1249 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1249 2014 Chevrolet Silverado Code

1. What does the OBDII code P1249 mean for a 2014 Chevrolet Silverado?

P1249 indicates that the Injector 2 Positive Voltage Control Circuit is shorted to the control circuit, which can disrupt proper fuel injection.

2. What are the common symptoms of code P1249 in a 2014 Chevrolet Silverado?

Symptoms include engine misfires, rough idling, reduced power, poor fuel efficiency, and possibly the check engine light turning on.

3. What causes code P1249 on a 2014 Chevrolet Silverado?

Common causes include damaged wiring, a short circuit in the injector harness, a faulty fuel injector, or issues with the engine control module (ECM).

4. Can I drive my 2014 Chevrolet Silverado with the P1249 code active?

Driving with code P1249 is not recommended as it can lead to engine misfires, poor performance, and potential damage to other components.

5. How can I diagnose the P1249 code on my 2014 Chevrolet Silverado?

Start by inspecting the wiring and connectors for Injector 2, check for shorts or damage, and test the injector for functionality using a multimeter.

6. How do I fix code P1249 on a 2014 Chevrolet Silverado?

Repairs may involve replacing damaged wiring, repairing shorts, replacing the faulty fuel injector, or reprogramming/replacing the ECM if necessary.

7. How much does it cost to fix code P1249 on a 2014 Chevrolet Silverado?

Repair costs vary, but replacing a fuel injector typically costs $100-$300, while wiring repairs or ECM replacements may exceed $500.

8. Is the fuel injector always the problem with code P1249?

No, the issue could also be with the wiring, connectors, or ECM, so thorough diagnostics are essential to pinpoint the cause.

9. Can a short circuit cause long-term damage in a 2014 Chevrolet Silverado?

Yes, a short circuit can potentially damage the ECM or other electrical components if not addressed promptly.

10. Will clearing the code P1249 fix the issue permanently?

No, clearing the code without addressing the underlying problem will only temporarily remove the check engine light, and the issue will likely return.