AutoCodes – GMC – P2150 2014 GMC Sierra

P2150 2014 GMC Sierra Code - Cylinder 2 Injector High Control Circuit Low Voltage

Quick Answer

The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control 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: P2150 2014 GMC Sierra indicates Cylinder 2 Injector High Control Circuit Low Voltage.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 235

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 08, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2150 2014 GMC Sierra Description

The Engine Control Module (ECM) supplies voltage to each fuel injector on the high control circuits. The ECM energizes each fuel injector by grounding the low control circuit of the fuel injector. The ECM monitors the status of the fuel injector 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 when the ECM detects the fuel injector high voltage supply circuit is shorted to ground for greater than 2 s.

OBDII Code P2150 2014 GMC Sierra - Cylinder 2 Injector High Control Circuit Low Voltage - AutoCodes.com — P2150 2014 GMC Sierra Code - Cylinder 2 Injector High Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2150 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 P2150 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 P2150 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.

Need more information about the P2150 2014 GMC Sierra code?

Need more information on how to fix the P2150 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2150 2014 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 P2150 2014 GMC Sierra Code

What does the OBDII code P2150 mean on a 2014 GMC Sierra?

The P2150 code indicates a "Cylinder 2 Injector High Control Circuit Low Voltage," meaning the fuel injector circuit for cylinder 2 is not receiving the proper voltage.

What are the common symptoms of the P2150 code in a 2014 GMC Sierra?

Symptoms may include rough idling, reduced engine performance, increased fuel consumption, engine misfires, or the Check Engine Light being illuminated.

What causes the P2150 code on a 2014 GMC Sierra?

Potential causes include a faulty fuel injector, damaged or corroded wiring in the injector circuit, a bad injector driver in the PCM, or a loose or defective connector.

Can I continue driving my 2014 GMC Sierra with a P2150 code?

While the truck may still be drivable, continued use can cause further engine damage or reduced performance. Itâ€™s best to address the issue promptly.

How do I diagnose the P2150 code on a 2014 GMC Sierra?

Diagnosing involves checking the injector wiring and connectors, testing the fuel injector, and using a multimeter to verify proper voltage and continuity in the circuit.

How can I fix the P2150 code on my 2014 GMC Sierra?

Repairs could include replacing the faulty fuel injector, repairing damaged wiring, cleaning or replacing corroded connectors, or, in rare cases, replacing the PCM.

How much does it cost to repair a P2150 code on a 2014 GMC Sierra?

Repair costs vary but can range from $150 to $400 for a new injector, plus potential labor costs if wiring repairs or PCM replacement are needed.

Could a bad PCM cause the P2150 code on my 2014 GMC Sierra?

Yes, a failing PCM can cause this code if the injector driver circuit inside the PCM is defective.

What tools are needed to diagnose a P2150 code on a 2014 GMC Sierra?

Youâ€™ll typically need an OBDII scanner, a digital multimeter, and possibly tools to access the injector and wiring harness.

Can a clogged fuel injector trigger the P2150 code on a 2014 GMC Sierra?

A clogged injector is unlikely to cause this code, as it specifically relates to an electrical issue in the injector circuit rather than a mechanical blockage.