P2739 Buick 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 Buick 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 Buick Description
What are the Possible Causes of the DTC P2739 Buick?
- 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 Buick?
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 Buick 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 Buick Code
1. What does the OBDII code P2739 mean on a Buick?
P2739 indicates a high voltage issue in the control circuit for Transmission Control Solenoid Valve 6, which helps regulate hydraulic pressure in the transmission.
2. What are common symptoms of P2739 on a Buick?
Common symptoms include harsh or delayed shifting, transmission slipping, decreased fuel efficiency, and the Check Engine Light turning on.
3. What causes the P2739 code in a Buick?
Potential causes include a faulty transmission control solenoid, damaged wiring or connectors in the circuit, a malfunctioning transmission control module (TCM), or low transmission fluid.
4. Is it safe to drive a Buick with a P2739 code?
Driving with a P2739 code is not recommended as it can lead to further transmission damage and unsafe driving conditions due to erratic shifting.
5. How do you diagnose the P2739 code on a Buick?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting the wiring and connectors for damage, testing the solenoid for proper resistance, and checking the TCM for faults.
6. What repairs can fix the P2739 code on a Buick?
Repairs may include replacing the faulty transmission control solenoid, repairing or replacing damaged wiring or connectors, updating or replacing the TCM, or refilling low transmission fluid.
7. How much does it cost to fix the P2739 code on a Buick?
Costs can vary but typically range from $150 to $400 for solenoid replacement, with additional costs for wiring or TCM repairs depending on the extent of the damage.
8. Can low transmission fluid cause the P2739 code on a Buick?
Yes, low transmission fluid can lead to improper hydraulic pressure, which may trigger the P2739 code.
9. Will resetting the Check Engine Light fix the P2739 code on a Buick?
Resetting the light without addressing the underlying issue will not fix the problem, and the code is likely to return.
10. Can a faulty TCM cause the P2739 code on a Buick?
Yes, a malfunctioning Transmission Control Module can send incorrect signals to the solenoid, causing the P2739 code to appear.
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