P2739 2015 GMC Sierra Code - Transmission Control Solenoid Valve 6 Control Circuit High Voltage
Quick Answer
The P2739 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a problem with the Transmission Control Solenoid Valve 6 Control Circuit High Voltage. Common causes include Faulty transmission control solenoid valve, Damaged wiring or connectors in the circuit, Malfunctioning 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 2015 GMC Sierra indicates Transmission Control Solenoid Valve 6 Control Circuit High Voltage.
- Common causes
- Common causes include Faulty transmission control solenoid valve, Damaged wiring or connectors in the circuit, Malfunctioning 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 2015 GMC Sierra Description
The P2739 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates a problem with the Transmission Control Solenoid Valve 6 Control Circuit High Voltage. This code specifically points to an issue with the electrical circuit that controls the transmission solenoid valve 6, which is responsible for regulating the flow of transmission fluid within the transmission system. The transmission control module (TCM) monitors the voltage levels in the circuit, and if it detects that the voltage is higher than normal, it will trigger this code.
Common Causes of P2739 2015 GMC Sierra
- Faulty transmission control solenoid valve
- Damaged wiring or connectors in the circuit
- Malfunctioning TCM
- Transmission system issues
- Electrical system issues
Symptoms of P2739 2015 GMC Sierra
- Harsh or delayed shifting
- Slipping gears
- Transmission getting stuck in a certain gear
- Poor acceleration
- Reduced fuel efficiency
How to Fix P2739 2015 GMC Sierra
- Diagnose the specific cause of the high voltage in the transmission control solenoid valve 6 circuit using a scan tool and multimeter.
- Inspect the wiring and connectors for any damage or corrosion, and repair or replace as necessary.
- Test the transmission control solenoid valve 6 for proper operation and replace if found to be faulty.
- Check the TCM for any malfunctions and reprogram or replace if needed.
- Clear the DTC and test drive the vehicle to ensure that the issue has been resolved.
Cost to Fix P2739 2015 GMC Sierra
The typical repair costs for addressing a P2739 code on a 2015 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of parts such as a new transmission control solenoid valve or TCM can range from $100 to $500, while labor costs can range from $150 to $300. Overall, the total repair cost for this issue can range from $250 to $800. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.
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Frequently Asked Questions about P2739 2015 GMC Sierra Code
1. What does the OBDII code P2739 mean for a 2015 GMC Sierra?
P2739 indicates a high voltage condition in the Transmission Control Solenoid Valve 6 Control Circuit, which may impact the transmission's operation.
2. What are the common symptoms of a P2739 code?
Symptoms may include harsh or delayed shifting, transmission slipping, reduced fuel efficiency, or the transmission being stuck in a single gear.
3. What causes the P2739 code to be triggered?
Common causes include a faulty transmission control solenoid, damaged or corroded wiring, a short or open circuit, or a malfunctioning powertrain control module (PCM).
4. Can a dirty transmission fluid cause the P2739 code?
While not a direct cause, contaminated or low transmission fluid can contribute to solenoid issues, which might trigger the code.
5. How can I diagnose a P2739 code on my GMC Sierra?
Start by inspecting the wiring and connectors to the solenoid for damage or corrosion. Use a multimeter to test the solenoid's resistance and ensure proper voltage and continuity in the circuit.
6. Is it safe to drive with a P2739 code?
Driving with this code is not recommended, as it can lead to transmission damage or unsafe driving conditions due to shifting issues.
7. How do I fix the P2739 code on a 2015 GMC Sierra?
Repairs may include replacing the faulty solenoid, repairing or replacing damaged wiring or connectors, cleaning connectors, or reprogramming or replacing the PCM if necessary.
8. How much does it cost to repair a P2739 code?
Repair costs can vary, but replacing a solenoid might cost $200–$400, while wiring or PCM repairs could add to the total cost depending on the extent of the damage.
9. Can a P2739 code clear itself?
The code may clear temporarily if the issue is intermittent, but it will reappear if the underlying problem is not resolved.
10. Will resetting the check engine light fix the P2739 code?
Resetting the light will not fix the issue. The root cause must be identified and repaired to prevent the code from returning.
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