AutoCodes – GMC – P062B 2018 GMC Sierra

P062B 2018 GMC Sierra Code - Control Module Fuel Injector Control Performance

Quick Answer

This diagnostic applies to internal microprocessor integrity conditions within the Engine Control Module (ECM). Common causes include Low battery voltage, Reprogram Engine Control Module (ECM), Faulty Engine Control Module. 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
P062B 2018 GMC Sierra indicates Control Module Fuel Injector Control Performance .
Common causes
Common causes include Low battery voltage, Reprogram Engine Control Module (ECM), Faulty Engine Control Module.
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 341
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 29, 2024
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Code P062B 2018 GMC Sierra Description

This diagnostic applies to internal microprocessor integrity conditions within the Engine Control Module (ECM). This diagnostic also addresses if the ECM is not programmed. The ECM monitors its ability to read and write to the memory. It also monitors a timing function. No external circuits are involved. The Diagnostic Trouble Code (DTC) will be set when the ECM detects an internal failure or incomplete programming for more than 10 s.
OBDII Code P062B 2018 GMC Sierra - Control Module Fuel Injector Control Performance  - AutoCodes.com
P062B 2018 GMC Sierra Code - Control Module Fuel Injector Control Performance

What are the Possible Causes of the DTC P062B 2018 GMC Sierra?

  • Low battery voltage
  • Reprogram Engine Control Module (ECM)
  • Faulty Engine Control Module
  • Engine Control Module harness is open or shorted
  • Engine Control Module circuit poor electrical connection

How to Fix the DTC P062B 2018 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 P062B 2018 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 P062B 2018 GMC Sierra code?

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Need Help with the Code?

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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 P062B 2018 GMC Sierra Code

1. What does the OBDII code P062B mean on a 2018 GMC Sierra?

P062B indicates a problem with the control module's fuel injector control performance, meaning there's an issue with the signal or operation of the fuel injectors.

2. What are the common symptoms of code P062B in a 2018 GMC Sierra?

Symptoms include rough engine idle, reduced fuel efficiency, difficulty starting, stalling, and possible activation of the check engine light.

3. What causes the P062B code to appear on a GMC Sierra?

Common causes include a faulty engine control module (ECM), wiring issues, failed fuel injectors, or software corruption in the ECM.

4. Can P062B damage my 2018 GMC Sierra if left unresolved?

Yes, ignoring this code can lead to poor engine performance, reduced fuel economy, and potential damage to engine components over time.

5. How do I diagnose the P062B code on my GMC Sierra?

Use an OBDII scanner to read the code, inspect the wiring and connections to the ECM and fuel injectors, and perform tests on the ECM and injector operation.

6. What repairs can fix the P062B code on a 2018 GMC Sierra?

Repairs may include replacing a faulty ECM, repairing or replacing damaged wiring, updating ECM software, or replacing malfunctioning fuel injectors.

7. Can a software update fix the P062B code on a GMC Sierra?

Yes, if the issue stems from corrupted or outdated ECM software, a software update may resolve the problem.

8. How much does it cost to fix code P062B on a 2018 GMC Sierra?

Repair costs vary based on the cause but can range from $100 for wiring repairs to $500 or more for ECM replacement.

9. Can I drive my GMC Sierra with the P062B code?

Driving with this code is not recommended, as it can lead to engine performance issues and further damage over time.

10. Do I need professional assistance to fix the P062B code?

While basic inspections can be done at home, diagnosing and repairing ECM or injector-related issues often require specialized tools and expertise.

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