P2739 2016 GMC Sierra Code - Transmission Control Solenoid Valve 6 Control Circuit High Voltage
Quick Answer
The Transmission Control Solenoid Valve Solenoid Valve is an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. 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
- P2739 2016 GMC Sierra indicates Transmission Control Solenoid Valve 6 Control Circuit High Voltage.
- 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 P2739 2016 GMC Sierra Description
What are the Possible Causes of the DTC P2739 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
- Faulty Transmission Control Module (TCM)
How to Fix the DTC P2739 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 P2739 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.
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Frequently Asked Questions about P2739 2016 GMC Sierra Code
1. What does the OBDII code P2739 mean on a 2016 GMC Sierra?
P2739 indicates a problem with the Transmission Control Solenoid Valve 6 Control Circuit, specifically high voltage being detected.
2. What are the common symptoms of the P2739 code?
Symptoms may include harsh or delayed shifting, transmission slipping, inability to shift into certain gears, and the activation of the Check Engine Light.
3. What causes the P2739 code in a 2016 GMC Sierra?
Possible causes include a faulty transmission control solenoid, damaged wiring or connectors in the solenoid circuit, a malfunctioning transmission control module (TCM), or contamination within the transmission fluid.
4. Can a dirty transmission fluid cause the P2739 code?
Yes, dirty or contaminated transmission fluid can affect the operation of the solenoid and trigger the P2739 code.
5. How is the P2739 code diagnosed?
A technician will inspect the wiring and connectors for damage, test the transmission solenoid for proper operation, and use a scan tool to monitor the TCM's commands and voltage levels.
6. How do you fix the P2739 code on a 2016 GMC Sierra?
Repairs may include replacing the faulty solenoid, repairing damaged wiring or connectors, flushing and replacing the transmission fluid, or reprogramming or replacing the TCM.
7. Can I drive my GMC Sierra with the P2739 code?
Driving with this code is not recommended, as it can lead to transmission damage or unsafe driving conditions due to improper gear shifting.
8. How much does it cost to fix the P2739 code?
Repair costs vary widely, ranging from $150 to $450 for solenoid replacement and potentially higher if the TCM needs replacement or reprogramming.
9. Can a weak battery cause the P2739 code?
While unlikely, a weak or failing battery can sometimes cause electrical issues, potentially impacting the transmission control system.
10. Is the P2739 code covered under warranty for a 2016 GMC Sierra?
This depends on your specific warranty coverage. Powertrain warranties often cover transmission-related issues, so check with your GMC dealer.
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