P0747 2016 GMC Sierra 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 GMC Sierra 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.
Code P0747 2016 GMC Sierra Description
What are the Possible Causes of the DTC P0747 2016 GMC Sierra?
- 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 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0747 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 P0747 2016 GMC Sierra code?
Need more information on how to fix the P0747 2016 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0747 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0747 2016 GMC Sierra Code
1. What does the OBDII code P0747 mean on a 2016 GMC Sierra?
P0747 indicates that the Transmission Control Solenoid Valve 1 is stuck in the "on" position, which can lead to improper transmission operation.
2. What are the common symptoms of code P0747 in a 2016 GMC Sierra?
Symptoms may include harsh shifting, slipping transmission, inability to change gears, reduced fuel efficiency, and activation of the check engine light.
3. What causes the P0747 code to trigger on a 2016 GMC Sierra?
Potential causes include a faulty transmission control solenoid, low or dirty transmission fluid, wiring issues, or internal transmission damage.
4. Can I drive my 2016 GMC Sierra with a P0747 code active?
Driving with a P0747 code is not recommended, as it can lead to further transmission damage or unsafe driving conditions.
5. How can I diagnose the P0747 code on my 2016 GMC Sierra?
Diagnosis involves scanning for codes, inspecting the transmission fluid, checking the solenoid’s electrical connections, and testing the solenoid for proper operation.
6. What is the cost to repair a P0747 code in a 2016 GMC Sierra?
Repair costs can vary widely, from $150 to $400 for a solenoid replacement, but may be higher if internal transmission repairs are needed.
7. Can dirty transmission fluid cause the P0747 code on a 2016 GMC Sierra?
Yes, dirty or contaminated transmission fluid can cause the solenoid to stick or malfunction, leading to a P0747 code.
8. How do I fix the P0747 code on my 2016 GMC Sierra?
Fixes may include replacing the faulty solenoid, cleaning or replacing the transmission fluid, repairing damaged wiring, or addressing internal transmission issues.
9. What tools are needed to troubleshoot the P0747 code on a 2016 GMC Sierra?
You may need an OBDII scanner, a multimeter for electrical testing, and basic tools for inspecting and replacing transmission components.
10. Can a P0747 code be caused by a faulty transmission control module (TCM)?
While rare, a malfunctioning TCM can contribute to a P0747 code if it fails to properly control the solenoid’s operation.
Discuss the causes and fixes for P0747 2016 GMC Sierra OBDII Code
Code P0747 2016 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
