P2739 2016 GMC Sierra Code - Transmission Control Solenoid Valve 6 Control Circuit High Voltage
Quick Answer
The P2739 diagnostic trouble code (DTC) for a 2016 GMC Sierra pertains to the Transmission Control Solenoid Valve 6 Control Circuit High Voltage. Common causes include Faulty transmission control solenoid valve 6, Wiring issues in the control circuit, Malfunctioning transmission control module (TCM). 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 Faulty transmission control solenoid valve 6, Wiring issues in the control circuit, Malfunctioning transmission control module (TCM).
- 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 P2739 2016 GMC Sierra Description
The P2739 diagnostic trouble code (DTC) for a 2016 GMC Sierra pertains to the Transmission Control Solenoid Valve 6 Control Circuit High Voltage. This code indicates that there is a problem with the electrical circuit controlling the transmission control solenoid valve 6, which can lead to issues with the transmission's operation. The transmission control solenoid valves are responsible for regulating the flow of transmission fluid in the transmission, which is crucial for shifting gears smoothly and efficiently.
Common Causes of P2739 2016 GMC Sierra
- Faulty transmission control solenoid valve 6
- Wiring issues in the control circuit
- Malfunctioning transmission control module (TCM)
- Battery or charging system problems
- Corrosion or damage to electrical connections
Symptoms of P2739 2016 GMC Sierra
- Harsh or delayed shifting
- Erratic shifting patterns
- Transmission slipping
- Transmission getting stuck in a specific gear
- Decreased fuel efficiency
How to Fix P2739 2016 GMC Sierra
- Diagnose the issue by using a scan tool to retrieve the trouble codes and perform a thorough inspection of the transmission control solenoid valve 6 and its control circuit.
- Test the solenoid valve for proper operation and check the wiring for any damage or corrosion.
- Replace the transmission control solenoid valve 6 if it is found to be faulty.
- Repair any damaged wiring or replace connectors as needed.
- Clear the trouble codes, reset the TCM, and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P2739 2016 GMC Sierra
The typical repair costs for addressing a P2739 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of replacing a transmission control solenoid valve can range from $150 to $300, while labor costs can add another $100 to $200. Additional costs may apply if there are wiring repairs or TCM replacement needed. It is advisable to consult with a reputable auto repair shop for a more accurate estimate based on the specific circumstances of the vehicle. Keep in mind that labor rates can vary between different locations and types of repair facilities.
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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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