AutoCodes – Chevrolet – P27AA 2014 Chevrolet Silverado

P27AA 2014 Chevrolet Silverado Code - Transmission Control Solenoid Valve 4 Calibration Incorrect

Quick Answer

The Transmission Control Solenoid Valve 1, 2, 3, 4, 5, 6, 7 have a unique current versus oil pressure characteristic that is used to properly upshift or downshift the transmission. Common causes include Solenoid Valve Characterization Reprogramming. 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
P27AA 2014 Chevrolet Silverado indicates Transmission Control Solenoid Valve 4 Calibration Incorrect.
Common causes
Common causes include Solenoid Valve Characterization Reprogramming.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 243
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 22, 2022
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Code P27AA 2014 Chevrolet Silverado Description

The Transmission Control Solenoid Valve 1, 2, 3, 4, 5, 6, 7 have a unique current versus oil pressure characteristic that is used to properly upshift or downshift the transmission. The data for each solenoid valve is programmed into the Transmission Control Module (TCM). The Diagnostic Trouble Code (DTC) will be set when the Transmission Control Solenoid Valve Calibration Data has not been programmed.
OBDII Code P27AA 2014 Chevrolet Silverado - Transmission Control Solenoid Valve 4 Calibration Incorrect - AutoCodes.com
P27AA 2014 Chevrolet Silverado Code - Transmission Control Solenoid Valve 4 Calibration Incorrect

What are the Possible Causes of the DTC P27AA 2014 Chevrolet Silverado?

  • Solenoid Valve Characterization Reprogramming

How to Fix the DTC P27AA 2014 Chevrolet Silverado?

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 P27AA 2014 Chevrolet Silverado 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 P27AA 2014 Chevrolet Silverado code?

Need more information on how to fix the P27AA 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P27AA 2014 Chevrolet Silverado 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 P27AA 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P27AA on a 2014 Chevrolet Silverado?

- Common symptoms include rough shifting, transmission slipping, reduced fuel efficiency, and possible illumination of the check engine light.

2. What does the OBDII code P27AA indicate in a 2014 Chevrolet Silverado?

- The code P27AA specifically points to an issue with the Transmission Control Solenoid Valve 4 Calibration being incorrect.

3. What are the possible causes of the Transmission Control Solenoid Valve 4 Calibration Incorrect code on a 2014 Chevrolet Silverado?

- Potential causes include a faulty solenoid valve, damaged wiring or connectors, low transmission fluid levels, or a malfunctioning transmission control module.

4. How can I diagnose the OBDII code P27AA on my 2014 Chevrolet Silverado?

- Diagnosing the code involves using an OBDII scanner to retrieve the code, checking the transmission fluid level and condition, and inspecting the wiring and connectors related to the solenoid valve.

5. Can I continue driving my 2014 Chevrolet Silverado with the P27AA code present?

- It is not recommended to continue driving the vehicle with the P27AA code active, as it can lead to further transmission issues and potentially cause more damage.

6. How can I repair the Transmission Control Solenoid Valve 4 Calibration Incorrect issue on my 2014 Chevrolet Silverado?

- Repair options may include replacing the faulty solenoid valve, repairing damaged wiring or connectors, ensuring proper transmission fluid levels, and resetting the transmission control module.

7. Is it possible to reset the OBDII code P27AA on a 2014 Chevrolet Silverado without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is crucial to address the root cause of the problem to prevent the code from reoccurring.

8. Are there any DIY tips for resolving the P27AA code on a 2014 Chevrolet Silverado?

- DIY tips include checking and tightening any loose wiring or connectors, ensuring proper transmission fluid levels, and inspecting the solenoid valve for any visible damage.

9. How much does it typically cost to repair the Transmission Control Solenoid Valve 4 Calibration Incorrect issue on a 2014 Chevrolet Silverado?

- The cost of repair can vary depending on the exact cause of the problem, but it may range from $200 to $500 for parts and labor at a reputable auto repair shop.

10. Can a professional mechanic help me address the OBDII code P27AA on my 2014 Chevrolet Silverado?

- Yes, a qualified mechanic can perform a thorough diagnosis, identify the root cause of the issue, and recommend the necessary repairs to resolve the Transmission Control Solenoid Valve 4 Calibration Incorrect problem efficiently.

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