AutoCodes – Chevrolet – P2720 2018 Chevrolet Silverado

P2720 2018 Chevrolet Silverado Code - Pressure Control Solenoid 4 Control Circuit Low Voltage

Quick Answer

The pressure control solenoid 4 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: P2720 2018 Chevrolet Silverado indicates Pressure Control Solenoid 4 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 226

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 P2720 2018 Chevrolet Silverado Description

The pressure control solenoid 4 is part of the control solenoid valve assembly which has no serviceable parts. The normally low-pressure control solenoid 4 regulates and directs oil pressure to the 2-6 clutch regulator valve. Increasing pressure control solenoid 4 pressure increases pressure to the 2-6 clutch regulator valve. The Transmission Control Module (TCM) varies the current to the pressure control solenoid 4 through a low-side driver. Increasing the current to pressure control solenoid 4 increases oil pressure by closing OFF the solenoid exhaust port. Decreasing the current to pressure control solenoid 4 decreases oil pressure by opening the exhaust port. Pressure control solenoid 4 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 pressure control solenoid 4 control circuit for 1 s.

OBDII Code P2720 2018 Chevrolet Silverado - Pressure Control Solenoid 4 Control Circuit Low Voltage - AutoCodes.com — P2720 2018 Chevrolet Silverado Code - Pressure Control Solenoid 4 Control Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2720 2018 Chevrolet Silverado?

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 P2720 2018 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 P2720 2018 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 P2720 2018 Chevrolet Silverado code?

Need more information on how to fix the P2720 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2720 2018 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 P2720 2018 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P2720 in a 2018 Chevrolet Silverado?

Symptoms may include rough shifting, erratic transmission behavior, decreased fuel efficiency, and an illuminated Check Engine Light.

2. What does the OBDII code P2720 specifically refer to in a 2018 Chevrolet Silverado?

This code indicates a problem with the Pressure Control Solenoid 4 Control Circuit experiencing low voltage in the transmission.

3. What are the possible causes of the Pressure Control Solenoid 4 Control Circuit Low Voltage issue in a 2018 Chevrolet Silverado?

Causes may include a faulty pressure control solenoid, damaged wiring or connectors, low transmission fluid levels, or a malfunctioning transmission control module.

4. How can I diagnose the OBDII code P2720 in my 2018 Chevrolet Silverado?

Diagnosis typically involves using a scan tool to retrieve the code, checking the transmission fluid level and condition, inspecting wiring and connectors, and conducting tests on the pressure control solenoid.

5. Can I continue driving my 2018 Chevrolet Silverado with OBDII code P2720?

It is not recommended to continue driving with this code present, as it can lead to further transmission damage and potential safety risks. It is best to address the issue promptly.

6. What are some repair tips for fixing OBDII code P2720 in a 2018 Chevrolet Silverado?

Repair tips may include replacing the pressure control solenoid, repairing or replacing damaged wiring or connectors, ensuring proper transmission fluid levels, and resetting the trouble code after repairs are completed.

7. Is it necessary to visit a mechanic for OBDII code P2720 in a 2018 Chevrolet Silverado?

While some DIY enthusiasts may attempt to diagnose and repair this issue, it is generally recommended to seek professional help, especially if you are not familiar with transmission systems.

8. Can resetting the trouble codes resolve the OBDII code P2720 issue in a 2018 Chevrolet Silverado?

Resetting the codes may temporarily turn off the Check Engine Light, but it will not fix the underlying problem causing the code. It is essential to address the root cause of the issue.

9. How much does it typically cost to repair OBDII code P2720 in a 2018 Chevrolet Silverado?

Repair costs can vary depending on the extent of the damage, parts needed, and labor rates. It is advisable to get estimates from different mechanics or repair shops.

10. Are there any recalls or technical service bulletins related to OBDII code P2720 in a 2018 Chevrolet Silverado?

It's recommended to check with a Chevrolet dealership or visit the NHTSA website to see if there are any relevant recalls or service bulletins addressing this specific OBDII code in the 2018 Silverado.