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P2739 Chevrolet Code - Transmission Control Solenoid Valve 6 Control Circuit High Voltage

Quick Answer

The P2739 code for Chevrolet vehicles indicates a problem with the Transmission Control Solenoid Valve 6 Control Circuit, specifically high voltage. Common causes include Malfunctioning Transmission Control Solenoid Valve 6, Damaged wiring or connectors in the control circuit, Issues with the 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 Chevrolet indicates Transmission Control Solenoid Valve 6 Control Circuit High Voltage.
Common causes
Common causes include Malfunctioning Transmission Control Solenoid Valve 6, Damaged wiring or connectors in the control circuit, Issues with the 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P2739 Chevrolet Description

The P2739 code for Chevrolet vehicles indicates a problem with the Transmission Control Solenoid Valve 6 Control Circuit, specifically high voltage. This solenoid is responsible for regulating the flow of transmission fluid in the transmission system, which is critical for proper gear shifting and overall performance of the vehicle. When the control circuit is experiencing high voltage, it can lead to erratic shifting behavior, harsh gear changes, transmission slipping, and even transmission failure if left unaddressed.

OBDII Code P2739 Chevrolet - Transmission Control Solenoid Valve 6 Control Circuit High Voltage
P2739 Chevrolet Code - Transmission Control Solenoid Valve 6 Control Circuit High Voltage

Common Causes of P2739 Chevrolet

  1. Malfunctioning Transmission Control Solenoid Valve 6
  2. Damaged wiring or connectors in the control circuit
  3. Issues with the Transmission Control Module (TCM)
  4. Faulty Engine Control Module (ECM)
  5. Software glitch or calibration issue in the TCM/ECM

Symptoms of P2739 Chevrolet

  1. Erratic shifting behavior
  2. Harsh gear changes
  3. Transmission slipping
  4. Illuminated Check Engine Light
  5. Decreased fuel efficiency

How to Fix P2739 Chevrolet

  1. Perform a comprehensive diagnostic scan to confirm the P2739 code and identify the specific cause of the issue.
  2. Inspect the Transmission Control Solenoid Valve 6 and its control circuit for any visible damage or corrosion. Replace the solenoid if necessary.
  3. Check the wiring and connectors in the control circuit for any breaks, frays, or loose connections. Repair or replace as needed.
  4. Test the Transmission Control Module (TCM) and Engine Control Module (ECM) for any faults or software issues. Update or reflash the modules if required.
  5. Clear the fault codes, reset the vehicle's computer, and perform a test drive to ensure the issue has been resolved.

Cost to Fix P2739 Chevrolet

The typical repair costs for addressing the P2739 code in a Chevrolet vehicle can range from $200 to $500, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Factors such as location, vehicle make and model, and engine type can also impact the overall repair costs. It is advisable to consult with a professional mechanic for a more accurate estimate based on your specific situation.

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Information for Specific Chevrolet Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2739 Chevrolet Code

What does the OBDII code P2739 mean on a Chevrolet?

The P2739 code indicates a high voltage issue in the control circuit of transmission control solenoid valve 6.

What are the common symptoms of the P2739 code on a Chevrolet?

Symptoms may include harsh shifting, transmission slipping, failure to shift gears, or the vehicle going into limp mode.

What causes the P2739 code on a Chevrolet?

Common causes include a faulty solenoid valve 6, damaged wiring or connectors in the circuit, or an issue with the transmission control module (TCM).

Can I drive my Chevrolet with the P2739 code?

Driving with this code is not recommended, as it can cause further transmission damage and lead to unsafe driving conditions.

How is the P2739 code diagnosed on a Chevrolet?

A technician will use a scan tool to check the code, inspect the wiring and connectors, test the solenoid valve, and verify the TCM’s functionality.

How do I fix the P2739 code on a Chevrolet?

Repairs may involve replacing the solenoid valve, repairing or replacing damaged wiring, or reprogramming or replacing the TCM.

What tools are needed to diagnose the P2739 code?

Tools like an OBDII scanner, a multimeter, and a wiring diagram for the transmission control circuit are typically required.

How much does it cost to repair the P2739 code on a Chevrolet?

Repair costs vary but may range from $200 to $500 for parts and labor, depending on whether the solenoid, wiring, or TCM needs repair.

Can a low transmission fluid level cause the P2739 code?

Low or contaminated transmission fluid can contribute to solenoid issues but is not the direct cause of the P2739 code.

Will clearing the P2739 code with a scanner fix the problem?

Clearing the code will turn off the check engine light temporarily, but the root issue must be addressed to prevent the code from returning.

Discuss the causes and fixes for P2739 Chevrolet OBDII Code

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