Engine-CodesChevrolet – P0966 2017 Chevrolet Silverado

P0966 2017 Chevrolet Silverado Code - Pressure Control Solenoid Valve 2 Control Circuit Low Voltage

Quick Answer

The P0966 diagnostic trouble code (DTC) in a 2017 Chevrolet Silverado indicates that there is a low voltage condition detected in the control circuit of Pressure Control Solenoid Valve 2. Common causes include Faulty Pressure Control Solenoid Valve 2, Damaged wiring or connectors in the control circuit, Malfunctioning 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
P0966 2017 Chevrolet Silverado indicates Pressure Control Solenoid Valve 2 Control Circuit Low Voltage.
Common causes
Common causes include Faulty Pressure Control Solenoid Valve 2, Damaged wiring or connectors in the control circuit, Malfunctioning 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.
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P0966 2017 Chevrolet Silverado Description

The P0966 diagnostic trouble code (DTC) in a 2017 Chevrolet Silverado indicates that there is a low voltage condition detected in the control circuit of Pressure Control Solenoid Valve 2. This solenoid valve is responsible for regulating hydraulic pressure within the transmission, which is crucial for proper shifting and overall transmission performance. When the control circuit voltage is lower than expected, it can lead to various issues with the transmission's operation.

OBDII Code P0966 2017 Chevrolet Silverado - Pressure Control Solenoid Valve 2 Control Circuit Low Voltage
P0966 2017 Chevrolet Silverado Code - Pressure Control Solenoid Valve 2 Control Circuit Low Voltage

Common Causes of P0966 2017 Chevrolet Silverado

  1. Faulty Pressure Control Solenoid Valve 2
  2. Damaged wiring or connectors in the control circuit
  3. Malfunctioning Transmission Control Module (TCM)
  4. Low voltage supply to the solenoid
  5. Corrosion or poor connections in the circuit

Symptoms of P0966 2017 Chevrolet Silverado

  1. Erratic shifting
  2. Harsh shifting
  3. Delayed shifting
  4. Transmission slippage
  5. Illuminated Check Engine Light

How to Fix P0966 2017 Chevrolet Silverado

  1. Begin by conducting a thorough inspection of the wiring and connectors associated with Pressure Control Solenoid Valve 2.
  2. Test the solenoid valve for proper operation and replace it if necessary.
  3. Check the voltage supply to the solenoid and ensure it is within the specified range.
  4. Inspect the Transmission Control Module (TCM) for any signs of damage or malfunction and replace if needed.
  5. Clear the DTC from the vehicle's memory and test drive to confirm that the issue has been resolved.

Cost to Fix P0966 2017 Chevrolet Silverado

The typical repair costs for addressing a P0966 code in a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. On average, the parts required for this repair, such as a new solenoid valve or TCM, can range from $100 to $500. Labor costs at auto repair shops typically range from $80 to $150 per hour, and the total repair time can vary based on the complexity of the issue. Therefore, the total cost for resolving this problem could range from $200 to $1000 or more, depending on the extent of the repairs needed. It's recommended to consult with a qualified mechanic or dealership for a more accurate estimate based on your vehicle's specific needs and location.

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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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