AutoCodes – Chevrolet – P27AB 2015 Chevrolet Silverado

P27AB 2015 Chevrolet Silverado Code - Transmission Control Solenoid Valve 5 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: P27AB 2015 Chevrolet Silverado indicates Transmission Control Solenoid Valve 5 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.

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Code Popularity 356

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 Sep 22, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P27AB 2015 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 P27AB 2015 Chevrolet Silverado - Transmission Control Solenoid Valve 5 Calibration Incorrect - AutoCodes.com — P27AB 2015 Chevrolet Silverado Code - Transmission Control Solenoid Valve 5 Calibration Incorrect

What does this mean?

What are the Possible Causes of the DTC P27AB 2015 Chevrolet Silverado?

Solenoid Valve Characterization Reprogramming

How to Fix the DTC P27AB 2015 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 P27AB 2015 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 P27AB 2015 Chevrolet Silverado code?

Need more information on how to fix the P27AB 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P27AB 2015 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 P27AB 2015 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P27AB in a 2015 Chevrolet Silverado related to Transmission Control Solenoid Valve 5 Calibration Incorrect?

- Common symptoms include rough shifting, transmission slipping, decreased fuel efficiency, and the vehicle going into limp mode.

2. What can cause the OBDII code P27AB to trigger in a 2015 Chevrolet Silverado?

- The code P27AB can be triggered by a faulty Transmission Control Solenoid Valve 5, wiring issues, or internal transmission problems.

3. How serious is the OBDII code P27AB related to Transmission Control Solenoid Valve 5 Calibration Incorrect in a 2015 Chevrolet Silverado?

- Ignoring the code can lead to further transmission issues and potential damage, so it is important to address it promptly.

4. What are some DIY repair tips for addressing the OBDII code P27AB in a 2015 Chevrolet Silverado?

- DIY repair tips include checking the transmission fluid level, inspecting the wiring harness for damage, and testing the Transmission Control Solenoid Valve 5 for proper functioning.

5. Can driving with the OBDII code P27AB present cause further damage to the transmission of a 2015 Chevrolet Silverado?

- Continuing to drive with the code present can potentially cause damage to the transmission, leading to more costly repairs in the future.

6. How much does it typically cost to repair the OBDII code P27AB in a 2015 Chevrolet Silverado at a dealership or repair shop?

- Repair costs can vary but generally range from $200 to $500, depending on the exact cause of the issue and the labor involved.

7. Is it safe to continue driving a 2015 Chevrolet Silverado with the OBDII code P27AB until it can be repaired?

- It is not recommended to continue driving the vehicle with the code present, as it can lead to further damage and safety risks.

8. Can resetting the OBDII code P27AB in a 2015 Chevrolet Silverado make the issue go away temporarily?

- Resetting the code may temporarily turn off the check engine light, but the underlying issue causing the code will still need to be addressed to prevent further problems.

9. How long does it typically take to repair the OBDII code P27AB in a 2015 Chevrolet Silverado?

- The repair time can vary depending on the exact cause of the issue, but it generally takes a few hours to a full day to diagnose and fix the problem.

10. Are there any recalls or technical service bulletins related to the OBDII code P27AB in a 2015 Chevrolet Silverado?

- It's recommended to check with Chevrolet or a certified dealership for any recalls or technical service bulletins related to the specific issue triggering the code P27AB in your vehicle.