AutoCodes – GMC – P2150 GMC

P2150 GMC 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 GMC 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.

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Code Popularity 1,216

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 Mar 23, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2150 GMC 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 GMC - Cylinder 2 Injector High Control Circuit Low Voltage - AutoCodes.com — P2150 GMC Code - Cylinder 2 Injector High Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2150 GMC?

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 GMC?

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 GMC 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 GMC code?

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

Need Help with the Code?

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

Information for Specific GMC Models

P2150 2014 GMC Sierra — Cylinder 2 Injector High Control Circuit Low Voltage
P2150 2015 GMC Sierra — Cylinder 2 Injector High Control Circuit Low Voltage
P2150 2016 GMC Sierra — Cylinder 2 Injector High Control Circuit Low Voltage
P2150 2017 GMC Sierra — Cylinder 2 Injector High Control Circuit Low Voltage
P2150 2018 GMC Sierra — Cylinder 2 Injector High Control Circuit Low Voltage

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 GMC Code

1. What are the common symptoms of OBDII code P2150 in a GMC vehicle?

Symptoms may include rough idling, engine misfires, poor acceleration, and potentially a Check Engine light.

2. What are the possible causes of OBDII code P2150 in a GMC, indicating Cylinder 2 Injector High Control Circuit Low Voltage?

Likely causes include a faulty fuel injector, damaged wiring or connectors, poor electrical connections, or a problem with the engine control module.

3. How can I diagnose the issue causing OBDII code P2150 in my GMC related to Cylinder 2 Injector High Control Circuit Low Voltage?

You can start by checking the wiring harness and connectors for any visible damage, testing the fuel injector, and using a multimeter to check voltage levels.

4. Can a dirty fuel injector cause OBDII code P2150 to trigger in a GMC vehicle?

Yes, a dirty or clogged fuel injector may lead to irregular fuel flow, causing low voltage in the control circuit and triggering the code.

5. Is it safe to continue driving my GMC with OBDII code P2150 present?

It is not recommended to drive your vehicle with this code unresolved, as it can lead to poor engine performance and potential long-term damage if left unattended.

6. Are there any simple repair tips for addressing OBDII code P2150 in a GMC?

You can start by cleaning the fuel injector, checking and repairing any damaged wiring, and ensuring all connections are secure before considering replacing any components.

7. Should I reset the OBDII code P2150 after making repairs to see if the issue is resolved?

Yes, after addressing the potential causes of the code, you should reset the code using an OBDII scanner to see if the problem has been successfully resolved.

8. Can a malfunctioning engine control module (ECM) be the root cause of OBDII code P2150 in a GMC?

Yes, a faulty ECM can sometimes be the underlying issue triggering the code P2150 related to Cylinder 2 Injector High Control Circuit Low Voltage.

9. How much does it typically cost to repair OBDII code P2150 in a GMC at a professional auto repair shop?

Repair costs can vary depending on the exact cause of the issue, but you can expect to pay anywhere from $150 to $500 for parts and labor.

10. Is it possible to prevent OBDII code P2150 from occurring in the future in my GMC?

Regular maintenance, such as keeping fuel injectors clean, checking wiring integrity, and addressing any engine performance issues promptly, can help prevent this code from reoccurring.