AutoCodes – GMC – P2763 2018 GMC Sierra

P2763 2018 GMC Sierra Code - Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit High 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: P2763 2018 GMC Sierra indicates Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit High 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 432

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 P2763 2018 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 voltage on the TCC pressure control solenoid valve control circuit for 1 s.

OBDII Code P2763 2018 GMC Sierra - Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit High Voltage - AutoCodes.com — P2763 2018 GMC Sierra Code - Torque Converter Clutch Pressure Control Solenoid Valve Control Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2763 2018 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 P2763 2018 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 P2763 2018 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 P2763 2018 GMC Sierra 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 P2763 2018 GMC Sierra Code

What does the OBDII code P2763 indicate on a 2018 GMC Sierra?

The code P2763 indicates that the Torque Converter Clutch (TCC) Pressure Control Solenoid Valve Control Circuit is experiencing high voltage, which may affect the transmission's performance.

What are common symptoms of code P2763 on a 2018 GMC Sierra?

Symptoms can include transmission slipping, harsh shifting, the vehicle stalling at stops, decreased fuel efficiency, and the transmission overheating. The check engine light will also be illuminated.

What can cause code P2763 to appear on my 2018 GMC Sierra?

Common causes include faulty TCC pressure control solenoid, wiring issues like shorts or disconnections in the solenoid circuit, or problems with the transmission control module.

How can I diagnose the cause of code P2763 in my 2018 GMC Sierra?

Diagnosis should start with a scan tool to confirm the presence of the code, followed by a visual inspection of the wiring and connectors. Testing the resistance and voltage of the TCC pressure control solenoid can also help pinpoint the issue.

What are the steps to fix code P2763 on a 2018 GMC Sierra?

Repair steps typically involve replacing the faulty TCC pressure control solenoid, repairing any damaged wiring or connectors, and in some cases, updating or replacing the transmission control module.

Is it safe to drive my 2018 GMC Sierra with code P2763?

Driving with this code is not recommended as it can lead to further damage to the transmission, potentially resulting in costly repairs. It is safer to address the issue promptly.

Can code P2763 on a 2018 GMC Sierra cause transmission failure?

Yes, ignoring code P2763 can lead to severe transmission issues, including complete failure, as it directly affects the operation of the torque converter and transmission fluid pressure.

How urgent is it to repair a P2763 code on a 2018 GMC Sierra?

It is fairly urgent to address this issue as it affects the transmissionâ€™s functionality and can lead to greater, more expensive problems if not promptly dealt with.

Can a faulty battery or charging system cause code P2763 on a 2018 GMC Sierra?

While less common, a faulty battery or issues with the charging system can sometimes cause this code due to improper voltages being delivered to the transmission control system.

After repairing a P2763 code on a 2018 GMC Sierra, is there anything special that needs to be done?

After repairs, it's advisable to clear the code with an OBDII scanner and take the vehicle for a test drive to ensure that the issue is resolved and the repair was successful.