AutoCodesGMC – P06AC 2015 GMC Sierra

P06AC 2015 GMC Sierra Code - Control Module Power Up Temperature Sensor Performance

Quick Answer

The Transmission Control Module (TCM) power-up temperature sensor is located inside of the control solenoid valve assembly which has no serviceable parts. Common causes include Faulty Control Solenoid Valve Assembly. 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
P06AC 2015 GMC Sierra indicates Control Module Power Up Temperature Sensor Performance.
Common causes
Common causes include Faulty Control Solenoid Valve Assembly.
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 159
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 19, 2022
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Code P06AC 2015 GMC Sierra Description

The Transmission Control Module (TCM) power-up temperature sensor is located inside of the control solenoid valve assembly which has no serviceable parts. The Transmission Control Module power-up temperature sensor provides the temperature of the Transmission Control Module when the Transmission Control Module power is on. This temperature reading is used in various shifting and diagnostic routines and also to protect the control solenoid valve assembly and Transmission Control Module. This fault is handled inside the Transmission Control Module and no external circuits are involved. The Diagnostic Trouble Code (DTC) will be set if the TCM detects an 8 - 10°C (14 - 18°F) or greater difference between the TCM substrate temperature and TCM power up the temperature, which depends on the average transmission fluid temperature, TCM substrate temperature, and TCM power up the temperature.
OBDII Code P06AC 2015 GMC Sierra - Control Module Power Up Temperature Sensor Performance - AutoCodes.com
P06AC 2015 GMC Sierra Code - Control Module Power Up Temperature Sensor Performance

What are the Possible Causes of the DTC P06AC 2015 GMC Sierra?

  • Faulty Control Solenoid Valve Assembly

How to Fix the DTC P06AC 2015 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 P06AC 2015 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 P06AC 2015 GMC Sierra code?

Need more information on how to fix the P06AC 2015 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 P06AC 2015 GMC Sierra Code

What does the OBDII code P06AC mean for a 2015 GMC Sierra?

1. P06AC indicates an issue with the Control Module Power Up Temperature Sensor Performance, suggesting the sensor's readings are outside the expected range during startup. 2.

What are common symptoms of the P06AC code in a 2015 GMC Sierra?

Symptoms may include a check engine light, difficulty starting, irregular engine performance, or poor fuel efficiency. 3.

What causes the P06AC code to trigger on a 2015 GMC Sierra?

Common causes include a faulty temperature sensor, wiring or connector issues, or in some cases, a malfunctioning control module. 4.

Can I drive my 2015 GMC Sierra with the P06AC code active?

While it may be possible to drive the vehicle, it is not recommended as it could lead to further engine or control module issues if left unresolved. 5.

How do I diagnose the P06AC code on a 2015 GMC Sierra?

Start by using a scan tool to confirm the code, inspect the temperature sensor and its wiring for damage, and test the sensor’s output to ensure it is functioning correctly. 6.

How can I fix the P06AC code on my 2015 GMC Sierra?

Repairs may include replacing the temperature sensor, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the control module if necessary. 7.

How much does it cost to repair the P06AC code on a 2015 GMC Sierra?

Repair costs can vary but typically range from $100 to $300 for diagnosing and replacing the temperature sensor or fixing wiring issues. Control module replacement costs can be significantly higher. 8.

Can a low battery cause the P06AC code in a 2015 GMC Sierra?

Yes, a weak or failing battery can sometimes cause power-up sensor issues, so it’s worth checking the battery’s condition and voltage. 9.

Does the P06AC code require reprogramming the control module on a 2015 GMC Sierra?

Not always, but if the issue is traced back to a control module error, reprogramming or replacement may be necessary. 10.

Can I clear the P06AC code without fixing the issue on a 2015 GMC Sierra?

Clearing the code without addressing the root cause may temporarily turn off the check engine light, but the issue will likely return and could worsen over time.

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