Engine-CodesGMC – P2738 2016 GMC Sierra

P2738 2016 GMC Sierra Code - Transmission Control Solenoid Valve 6 Control Circuit Low Voltage

Quick Answer

The P2738 diagnostic trouble code (DTC) indicates that there is an issue with the Transmission Control Solenoid Valve 6 Control Circuit in a 2016 GMC Sierra. Common causes include Faulty transmission control solenoid valve 6, Wiring issues or poor electrical connections, Problems with the transmission 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
P2738 2016 GMC Sierra indicates Transmission Control Solenoid Valve 6 Control Circuit Low Voltage.
Common causes
Common causes include Faulty transmission control solenoid valve 6, Wiring issues or poor electrical connections, Problems with the transmission 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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P2738 2016 GMC Sierra Description

The P2738 diagnostic trouble code (DTC) indicates that there is an issue with the Transmission Control Solenoid Valve 6 Control Circuit in a 2016 GMC Sierra. This specific code points to a low voltage condition in the control circuit of the transmission control solenoid valve 6. The transmission control solenoid valves are responsible for regulating the flow of transmission fluid within the transmission. When the control circuit for solenoid valve 6 is experiencing low voltage, it can lead to improper shifting of gears, erratic transmission behavior, and potential damage to the transmission system.

OBDII Code P2738 2016 GMC Sierra - Transmission Control Solenoid Valve 6 Control Circuit Low Voltage
P2738 2016 GMC Sierra Code - Transmission Control Solenoid Valve 6 Control Circuit Low Voltage

Common Causes of P2738 2016 GMC Sierra

  1. Faulty transmission control solenoid valve 6
  2. Wiring issues or poor electrical connections
  3. Problems with the transmission control module
  4. Low transmission fluid levels
  5. Internal transmission damage

Symptoms of P2738 2016 GMC Sierra

  1. Erratic shifting of gears
  2. Delayed or harsh shifting
  3. Transmission slipping
  4. Illuminated Check Engine Light
  5. Reduced fuel efficiency

How to Fix P2738 2016 GMC Sierra

  1. Begin by conducting a thorough inspection of the transmission control solenoid valve 6 and its wiring harness to check for any visible damage or loose connections.
  2. Test the solenoid valve for proper operation using a multimeter to measure voltage and resistance.
  3. If the solenoid valve is faulty, replace it with a new one according to manufacturer specifications.
  4. Check and repair any damaged wiring or connectors in the control circuit.
  5. Clear the DTC codes using a diagnostic scan tool and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2738 2016 GMC Sierra

The cost of repairing a P2738 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of replacing a transmission control solenoid valve can range from $150 to $300, including parts and labor. Additional costs may apply if there are wiring issues or other components that need to be replaced. It is recommended to consult with a qualified mechanic or dealership to get a more accurate estimate based on your vehicle's specific needs.

Need more information about the P2738 2016 GMC Sierra code?

Need more information on how to fix the P2738 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2738 2016 GMC Sierra 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 P2738 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code P2738 on a 2016 GMC Sierra related to the Transmission Control Solenoid Valve 6 Control Circuit Low Voltage?

- Common symptoms include rough shifting, transmission slipping, and potential stalling of the vehicle.

2. What are the possible causes of OBDII code P2738 on a 2016 GMC Sierra?

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

3. How serious is OBDII code P2738 on a 2016 GMC Sierra?

- This code should be addressed promptly as it can lead to transmission issues and potential damage if left unresolved.

4. Can I continue to drive my 2016 GMC Sierra with OBDII code P2738 present?

- It is not recommended to continue driving the vehicle with this code present as it can cause further damage to the transmission.

5. How can I diagnose OBDII code P2738 on a 2016 GMC Sierra?

- Diagnosis usually involves using a scan tool to read the code, checking the transmission control solenoid valve and related components for faults, and inspecting the wiring for any damage.

6. What are some repair tips for fixing OBDII code P2738 on a 2016 GMC Sierra?

- Repair tips may include replacing the faulty transmission control solenoid valve, repairing or replacing damaged wiring, ensuring proper transmission fluid levels, and resetting the trouble code after repairs are made.

7. How much does it cost to repair OBDII code P2738 on a 2016 GMC Sierra?

- The cost of repairs can vary depending on the specific issue causing the code, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can I clear OBDII code P2738 on a 2016 GMC Sierra without fixing the underlying issue?

- While you can clear the code temporarily, it will likely reappear if the underlying issue is not addressed, and it is not recommended to ignore the problem.

9. Is it possible to prevent OBDII code P2738 from appearing on a 2016 GMC Sierra?

- Regular maintenance of the transmission system, such as checking fluid levels and addressing any issues promptly, can help prevent this code from appearing.

10. How long does it typically take to repair OBDII code P2738 on a 2016 GMC Sierra?

- The repair time can vary depending on the exact cause of the code and the complexity of the repair needed, but it may take a few hours to a full day to complete the necessary repairs.

Discuss the causes and fixes for P2738 2016 GMC Sierra OBDII Code

Code P2738 2016 GMC Sierra comments

No comments found for this page.