AutoCodes – GMC – P2764 2016 GMC Sierra

P2764 2016 GMC Sierra Code - Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage

Quick Answer

The Torque Converter Clutch (TCC) pressure control solenoid is part of the control solenoid valve assembly which has no serviceable parts. Common causes include Low transmission fluid level, Dirty transmission fluid, 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: P2764 2016 GMC Sierra indicates Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, 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 209

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 Mar 25, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2764 2016 GMC Sierra Description

The Torque Converter Clutch (TCC) pressure control solenoid is part of the control solenoid valve assembly which has no serviceable parts. The normally low TCC pressure control solenoid regulates oil pressure to the TCC regulator valve and TCC control valve. Increasing TCC pressure control solenoid oil pressure increases oil pressure to the torque converter to apply the clutch. The Transmission Control Module (TCM) varies the current to the TCC pressure control solenoid through a low-side driver. Increasing current to the TCC pressure control solenoid increases oil pressure by closing OFF the solenoid exhaust port. Decreasing current to the TCC pressure control solenoid decreases oil pressure by opening up the solenoid exhaust port. The TCC pressure control solenoid power is supplied by the Transmission Control Module through a high-side driver. The high-side driver protects the circuit and components from excessive current flow. If excessive current flow is detected, the high side driver will turn OFF. When the fault is corrected, the high-side driver will reset.
The Diagnostic Trouble Code (DTC) will be set when the Transmission Control Module detects a short to ground on the TCC pressure control solenoid valve control circuit for 1 s.

OBDII Code P2764 2016 GMC Sierra - Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage - AutoCodes.com — P2764 2016 GMC Sierra Code - Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2764 2016 GMC Sierra?

Low transmission fluid level
Dirty transmission fluid
Faulty Control Solenoid Valve Assembly
Control Solenoid Valve Assembly harness or connectors
Control Solenoid Valve Assembly circuit is open or shorted

How to Fix the DTC P2764 2016 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 P2764 2016 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 P2764 2016 GMC Sierra code?

Need more information on how to fix the P2764 2016 GMC Sierra code? Get Access to Factory Service Manuals

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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 P2764 2016 GMC Sierra Code

1. What does the OBDII code P2764 mean on a 2016 GMC Sierra?

P2764 indicates a low voltage issue in the Torque Converter Clutch (TCC) Pressure Control Solenoid Valve Control Circuit, which can affect the transmission's ability to lock up the torque converter properly.

2. What are the common symptoms of code P2764 in a 2016 GMC Sierra?

Common symptoms include poor fuel efficiency, transmission slipping, difficulty shifting, or the transmission overheating. You may also notice the check engine light illuminated.

3. What causes the P2764 code to appear on a 2016 GMC Sierra?

Potential causes include a faulty TCC pressure control solenoid, damaged wiring or connectors in the circuit, a malfunctioning transmission control module (TCM), or low transmission fluid levels.

4. Can driving with the P2764 code damage my 2016 GMC Sierra?

Driving with a P2764 code can lead to further transmission issues, overheating, and increased wear on the torque converter if not addressed promptly.

5. How can I fix the P2764 code on my 2016 GMC Sierra?

Start by checking the transmission fluid level and condition. Inspect the wiring and connectors to the TCC solenoid for damage or corrosion. If no issues are found, the TCC solenoid or TCM may need replacement.

6. How much does it cost to repair the P2764 code on a 2016 GMC Sierra?

Repair costs vary but typically range from $150 to $500 for diagnosing and replacing the TCC solenoid. Costs can increase if wiring repairs or TCM replacement are necessary.

7. Can a low transmission fluid level cause the P2764 code?

Yes, low or contaminated transmission fluid can reduce hydraulic pressure, causing the TCC solenoid to malfunction and trigger the P2764 code.

8. How do I reset the P2764 code on my 2016 GMC Sierra?

After repairs, you can clear the code using an OBDII scanner. However, if the issue isnâ€™t fully resolved, the code will likely return.

9. Could a faulty TCM cause the P2764 code on my 2016 GMC Sierra?

Yes, a malfunctioning transmission control module can disrupt the TCC solenoid circuit and trigger the P2764 code.

10. Do I need a professional mechanic to fix the P2764 code on my 2016 GMC Sierra?

While basic checks like inspecting fluid levels and wiring can be done at home, diagnosing and replacing the TCC solenoid or TCM may require professional assistance.