Engine-CodesCadillac – P2739 Cadillac

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

Quick Answer

The P2739 diagnostic trouble code (DTC) for Cadillac vehicles refers to an issue with the Transmission Control Solenoid Valve 6 Control Circuit registering a high voltage. Common causes include Wiring harness damage or corrosion, Faulty transmission control module, Defective transmission solenoid valve 6. 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 Cadillac indicates Transmission Control Solenoid Valve 6 Control Circuit High Voltage.
Common causes
Common causes include Wiring harness damage or corrosion, Faulty transmission control module, Defective transmission solenoid valve 6.
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.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2739 Cadillac Description

The P2739 diagnostic trouble code (DTC) for Cadillac vehicles refers to an issue with the Transmission Control Solenoid Valve 6 Control Circuit registering a high voltage. The transmission control solenoid valve plays a crucial role in regulating the flow of transmission fluid within the transmission system, assisting in gear shifts and overall performance. When the control circuit for solenoid valve 6 detects a high voltage, it indicates a potential malfunction or electrical fault in the system.

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

Common Causes of P2739 Cadillac

  1. Wiring harness damage or corrosion
  2. Faulty transmission control module
  3. Defective transmission solenoid valve 6
  4. Electrical issues in the control circuit
  5. Power supply problems

Symptoms of P2739 Cadillac

  1. Erratic shifting behavior
  2. Harsh gear changes
  3. Slipping transmission
  4. Difficulty engaging certain gears
  5. Decreased fuel efficiency

How to Fix P2739 Cadillac

  1. Begin by conducting a thorough diagnostic scan to confirm the P2739 code and identify the specific cause of the high voltage issue.
  2. Inspect the wiring harness connected to the transmission control solenoid valve 6 for any signs of damage or corrosion. Replace any damaged wiring as necessary.
  3. Test the transmission control module to determine if it is functioning correctly. Replace the module if it is found to be faulty.
  4. Check the transmission solenoid valve 6 for proper operation and replace it if it is defective.
  5. Finally, clear the DTC from the vehicle's computer system and test drive the vehicle to ensure that the transmission is operating smoothly.

Cost to Fix P2739 Cadillac

The typical repair costs for addressing a P2739 code involving the Transmission Control Solenoid Valve 6 Control Circuit High Voltage can vary depending on the specific cause of the issue and the labor rates in your area. In general, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to obtain quotes from multiple shops to ensure a competitive price.

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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.

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