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P0966 Chevrolet Code - Pressure Control Solenoid Valve 2 Control Circuit Low Voltage

Quick Answer

The P0966 code for Chevrolet indicates a problem with the Pressure Control Solenoid Valve 2 Control Circuit having low voltage. Common causes include Faulty pressure control solenoid valve 2, Damaged or corroded wiring connections, Issues with the transmission control module. 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
P0966 Chevrolet indicates Pressure Control Solenoid Valve 2 Control Circuit Low Voltage.
Common causes
Common causes include Faulty pressure control solenoid valve 2, Damaged or corroded wiring connections, Issues with the transmission control module.
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 P0966 Chevrolet Description

The P0966 code for Chevrolet indicates a problem with the Pressure Control Solenoid Valve 2 Control Circuit having low voltage. This solenoid is responsible for regulating the hydraulic pressure within the transmission. When the voltage is too low, it can lead to improper shifting of gears, causing issues with transmission performance. This can result in rough shifting, delayed engagement, or even transmission slipping. If left unaddressed, it can lead to further damage to the transmission system, resulting in costly repairs.

OBDII Code P0966 Chevrolet - Pressure Control Solenoid Valve 2 Control Circuit Low Voltage
P0966 Chevrolet Code - Pressure Control Solenoid Valve 2 Control Circuit Low Voltage

Common Causes of P0966 Chevrolet

  1. Faulty pressure control solenoid valve 2
  2. Damaged or corroded wiring connections
  3. Issues with the transmission control module
  4. Low transmission fluid levels or dirty fluid
  5. Electrical issues such as blown fuses or relays

Symptoms of P0966 Chevrolet

  1. Rough shifting or jerky movements when changing gears
  2. Delayed engagement when shifting from park to drive or reverse
  3. Transmission slipping or struggling to stay in gear
  4. Illumination of the check engine light
  5. Reduced fuel efficiency due to inefficient transmission operation

How to Fix P0966 Chevrolet

  1. Begin by using a diagnostic scanner to read the code and determine the exact cause of the issue.
  2. Inspect the wiring harness and connections related to the pressure control solenoid valve 2 for any damage or corrosion. Repair or replace as needed.
  3. Test the pressure control solenoid valve 2 for proper operation. Replace if faulty.
  4. Check the transmission control module for any faults or errors. Reset or reprogram if necessary.
  5. Clear the code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0966 Chevrolet

The typical repair costs for addressing a P0966 code on a Chevrolet can range from $200 to $500, depending on the specific cause of the issue and the cost of parts and labor. This estimate includes the cost of diagnosing the problem, replacing any faulty components, and labor fees. It's important to note that actual costs may vary based on the location of the repair shop, the make and model of the vehicle, and any additional repairs that may be needed. It's recommended to consult with a qualified mechanic for a more accurate estimate.

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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.

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