AutoCodes – GMC – P2511 GMC

P2511 GMC Code - ECM/PCM Power Relay Sense Circuit Intermittent

Quick Answer

The Powertrain Control Module (PCM)/Engine Control Module (ECM) monitors the voltage to the ECM/PCM Power Relay. Common causes include Faulty ECM/PCM Power Relay, ECM/PCM Power Relay harness is open or shorted, ECM/PCM Power Relay 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: P2511 GMC indicates ECM/PCM Power Relay Sense Circuit Intermittent.
Common causes: Common causes include Faulty ECM/PCM Power Relay, ECM/PCM Power Relay harness is open or shorted, ECM/PCM Power Relay 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 4,009

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 Jan 17, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2511 GMC Description

The Powertrain Control Module (PCM)/Engine Control Module (ECM) monitors the voltage to the ECM/PCM Power Relay. The ECM/PCM set the OBDII code set when the ECM/PCM Power Relay is out of factory specifications.

OBDII Code P2511 GMC - ECM/PCM Power Relay Sense Circuit Intermittent - AutoCodes.com — P2511 GMC Code - ECM/PCM Power Relay Sense Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P2511 GMC?

Faulty ECM/PCM Power Relay
ECM/PCM Power Relay harness is open or shorted
ECM/PCM Power Relay circuit poor electrical connection

How to Fix the DTC P2511 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 P2511 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 P2511 GMC code?

Need more information on how to fix the P2511 GMC code? Get Access to Factory Service Manuals

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Get the P2511 GMC 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 P2511 GMC Code

1. What are common symptoms of OBDII code P2511 GMC (ECM/PCM Power Relay Sense Circuit Intermittent)?

- Common symptoms include intermittent starting issues, engine stalling, and a check engine light illuminated on the dashboard.

2. What can cause the OBDII code P2511 GMC to trigger?

- The code P2511 can be triggered by a faulty ECM/PCM power relay, damaged wiring or connectors in the power relay circuit, or a malfunctioning powertrain control module (PCM).

3. How serious is the OBDII code P2511 GMC?

- The code P2511 indicates an issue with the ECM/PCM power relay sense circuit, which can affect the overall performance and reliability of the vehicle. It is recommended to address this issue promptly.

4. What are some repair tips for resolving the OBDII code P2511 GMC?

- Start by inspecting the ECM/PCM power relay and related wiring for any signs of damage or corrosion. Ensure all connections are secure and tight. If necessary, replace the faulty relay or repair damaged wiring.

5. Can I drive my vehicle with the OBDII code P2511 GMC active?

- It is not advisable to drive the vehicle with the code P2511 active, as it can lead to potential starting or stalling issues while driving. It is recommended to address the underlying problem as soon as possible.

6. How can I diagnose the OBDII code P2511 GMC at home?

- You can use an OBDII scanner to read and clear the code P2511. Additionally, you can visually inspect the ECM/PCM power relay and related wiring for any visible damage or loose connections.

7. Is it safe to reset the OBDII code P2511 GMC without fixing the underlying issue?

- While resetting the code may temporarily turn off the check engine light, it will not fix the underlying problem causing the code to trigger. It is important to diagnose and repair the issue to prevent further problems.

8. How much does it cost to repair the OBDII code P2511 GMC?

- The cost of repairing the code P2511 can vary depending on the root cause of the issue. It may involve replacing the ECM/PCM power relay, repairing wiring, or addressing other related components. Costs can range from a simple DIY fix to a professional repair service.

9. Can a DIY enthusiast fix the OBDII code P2511 GMC issue?

- Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to address the code P2511 by inspecting and replacing the ECM/PCM power relay or repairing damaged wiring. However, professional help may be needed for more complex issues.

10. How long does it take to repair the OBDII code P2511 GMC?

- The repair time for the code P2511 can vary based on the specific cause of the issue and the expertise of the person performing the repair. It can range from a quick relay replacement to a more involved wiring repair, potentially taking a few hours to complete.