AutoCodes – GMC – P06AC 2017 GMC Sierra

P06AC 2017 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 2017 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 165

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 Jul 19, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P06AC 2017 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 2017 GMC Sierra - Control Module Power Up Temperature Sensor Performance - AutoCodes.com — P06AC 2017 GMC Sierra Code - Control Module Power Up Temperature Sensor Performance

What does this mean?

What are the Possible Causes of the DTC P06AC 2017 GMC Sierra?

Faulty Control Solenoid Valve Assembly

How to Fix the DTC P06AC 2017 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 2017 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 2017 GMC Sierra code?

Need more information on how to fix the P06AC 2017 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 2017 GMC Sierra Code

1. What does the OBDII code P06AC mean on a 2017 GMC Sierra?

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

2. What are the common symptoms of code P06AC on a GMC Sierra?

Symptoms include the check engine light turning on, poor engine performance, difficulty starting the vehicle, or erratic temperature readings.

3. What causes the P06AC code to appear?

Common causes include a faulty temperature sensor, wiring issues like damaged or corroded connectors, a malfunctioning control module, or software glitches.

4. Can I drive my 2017 GMC Sierra with the P06AC code active?

While the vehicle may still run, driving with this code active can lead to further engine performance issues or potential overheating risks. Itâ€™s best to address it promptly.

5. How do I diagnose the P06AC code on my GMC Sierra?

Start by scanning the vehicle with an OBDII scanner, inspecting the temperature sensor and related wiring for visible damage, and verifying the sensorâ€™s voltage and resistance readings.

6. What repairs are typically needed for the P06AC code?

Repairs may involve replacing the faulty temperature sensor, repairing or replacing damaged wiring or connectors, or updating or reprogramming the vehicleâ€™s control module.

7. How much does it cost to fix the P06AC code on a GMC Sierra?

Repair costs depend on the issue but can range from $100-$300 for a sensor replacement and more if control module repairs or reprogramming are needed.

8. Can a software update fix the P06AC code on a 2017 GMC Sierra?

Yes, if the issue stems from a software glitch in the powertrain control module, a software update may resolve it.

9. How can I prevent the P06AC code from reoccurring?

Regular maintenance, including inspecting sensors and wiring for damage, and keeping the vehicleâ€™s software up to date, can help prevent this code from reoccurring.

10. Is the P06AC code specific to GMC Sierra trucks?

No, the P06AC code can appear on other GM vehicles using similar control systems, but the diagnostic and repair process may vary slightly.