AutoCodes – Chevrolet – P0747 2016 Chevrolet Silverado

P0747 2016 Chevrolet Silverado Code - Transmission Control Solenoid Valve 1 Stuck On

Quick Answer

The solenoid actuator controls fluid pressure by moving the clutch 1-2-3-4-5-6 regulator valve that controls the fluid pressure to the 1-2-3-4-5-6 clutch. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid Valve. 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: P0747 2016 Chevrolet Silverado indicates Transmission Control Solenoid Valve 1 Stuck On.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Transmission Control Solenoid Valve.
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 242

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 Jul 30, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0747 2016 Chevrolet Silverado Description

The solenoid actuator controls fluid pressure by moving the clutch 1-2-3-4-5-6 regulator valve that controls the fluid pressure to the 1-2-3-4-5-6 clutch. The Solenoid Valve is an electronic pressure actuator that controls transmission line pressure based on current flow through its coil windings. As current flow is increased, the magnetic field produced by the coil moves the solenoid’s plunger further away from the exhaust port. Opening the exhaust port decreases the output fluid pressure regulated by the solenoid valve, which ultimately decreases line pressure.

OBDII Code P0747 2016 Chevrolet Silverado - Transmission Control Solenoid Valve 1 Stuck On - AutoCodes.com — P0747 2016 Chevrolet Silverado Code - Transmission Control Solenoid Valve 1 Stuck On

What does this mean?

What are the Possible Causes of the DTC P0747 2016 Chevrolet Silverado?

Low transmission fluid level
Dirty transmission fluid
Faulty Transmission Control Solenoid Valve
Transmission Control Solenoid Valve harness is open or shorted
Transmission Control Solenoid Valve circuit poor electrical connection

How to Fix the DTC P0747 2016 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 does this mean?

Code Tech Notes

When a transmission solenoid has malfunctioned, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is dirty, it's recommended to change the transmission fluid and if possible, remove the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a mechanical transmission failure, and that the transmission will need to be rebuilt or replaced.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0747 2016 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 P0747 2016 Chevrolet Silverado 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 P0747 2016 Chevrolet Silverado Code

What does the OBDII code P0747 mean for a 2016 Chevrolet Silverado?

Code P0747 indicates that Transmission Control Solenoid Valve 1 is stuck in the "on" position, which affects the transmission's ability to shift properly.

What are the symptoms of code P0747 in a 2016 Chevrolet Silverado?

Symptoms may include erratic shifting, failure to shift gears, transmission slipping, reduced fuel efficiency, or the vehicle entering "limp mode."

What causes the P0747 code in a 2016 Chevrolet Silverado?

Common causes include a faulty transmission control solenoid, contaminated transmission fluid, wiring issues, or a malfunctioning transmission control module (TCM).

Can driving with code P0747 damage the transmission?

Yes, driving with this code can cause additional damage to the transmission if the issue is not resolved promptly.

How is code P0747 diagnosed in a 2016 Chevrolet Silverado?

A mechanic will use a scan tool to confirm the code, inspect the transmission fluid condition, check solenoid operation, and test wiring and electrical connections.

How do you fix code P0747 in a 2016 Chevrolet Silverado?

Repairs may involve replacing the faulty solenoid, cleaning or replacing the transmission fluid, repairing damaged wiring, or replacing the TCM if necessary.

How much does it cost to repair code P0747 in a 2016 Chevrolet Silverado?

Repair costs vary but may range from $200 to $500 for solenoid replacement, with higher costs if more extensive transmission repairs are needed.

Can low transmission fluid cause code P0747?

Yes, low or dirty transmission fluid can restrict solenoid operation and trigger this code.

Is replacing the transmission control solenoid difficult in a 2016 Chevrolet Silverado?

Replacing the solenoid can be moderately difficult and typically requires removing the transmission pan and valve body, which is best handled by a professional.

Should I reset the P0747 code after repairs?

Yes, after resolving the issue, reset the code using a scan tool to verify that the problem has been fixed and does not reoccur.