AutoCodes – GMC – P0606 2016 GMC Sierra

P0606 2016 GMC Sierra Code - Control Module Processor 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
P0606 2016 GMC Sierra indicates Control Module Processor 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 215
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 P0606 2016 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 P0606 2016 GMC Sierra - Control Module Processor Performance - AutoCodes.com
P0606 2016 GMC Sierra Code - Control Module Processor Performance

What are the Possible Causes of the DTC P0606 2016 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 P0606 2016 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0606 2016 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 P0606 2016 GMC Sierra code?

Need more information on how to fix the P0606 2016 GMC Sierra code? Get Access to Factory Service Manuals

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 P0606 2016 GMC Sierra Code

What does the OBDII code P0606 mean on a 2016 GMC Sierra?

Code P0606 indicates a fault in the control module processor performance, meaning the engine control module (ECM) has detected an internal processing error.

What are the common symptoms of code P0606 in a 2016 GMC Sierra?

Symptoms may include the check engine light turning on, engine misfires, reduced fuel efficiency, poor engine performance, or the vehicle entering "limp mode."

What can cause code P0606 to appear on a 2016 GMC Sierra?

Common causes include a malfunctioning ECM, software corruption, electrical issues such as damaged wiring or connectors, or excessive heat or moisture affecting the ECM.

Can I drive my 2016 GMC Sierra with code P0606?

While the vehicle may still be drivable, continuing to drive with this code may lead to further engine performance issues or damage. It's best to address the issue promptly.

How do I diagnose code P0606 on a 2016 GMC Sierra?

Diagnosis typically involves scanning the vehicle for additional codes, inspecting the ECM for physical damage, testing wiring and connections, and checking for software updates or reprogramming needs.

Is replacing the ECM the only solution for code P0606?

No, replacing the ECM is often a last resort. Issues like wiring damage, bad connectors, or corrupt software may be resolved without replacing the module.

Can a software update fix code P0606 on a 2016 GMC Sierra?

Yes, if the issue is related to outdated or corrupted software, a professional software update or reprogramming may resolve the problem.

How much does it cost to fix code P0606 on a 2016 GMC Sierra?

Costs can vary widely depending on the cause, ranging from $100 for minor wiring repairs to over $1,000 if the ECM needs replacement.

Can a weak battery cause code P0606 on a 2016 GMC Sierra?

Yes, a weak or failing battery can cause voltage irregularities, which may lead to ECM processing errors and trigger code P0606.

Should I clear code P0606 without repairing the issue?

Clearing the code without addressing the underlying issue may only provide a temporary fix, as the fault is likely to recur until properly resolved.

Discuss the causes and fixes for P0606 2016 GMC Sierra OBDII Code

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