Engine-CodesBuick – P0971 Buick

P0971 Buick Code - Pressure Control Solenoid Valve 3 Control Circuit High Voltage

Quick Answer

The P0971 Buick code indicates a problem with the Pressure Control Solenoid Valve 3 Control Circuit, specifically that there is high voltage detected. Common causes include Faulty pressure control solenoid valve, Wiring issues such as shorts or open circuits, Malfunctioning 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
P0971 Buick indicates Pressure Control Solenoid Valve 3 Control Circuit High Voltage.
Common causes
Common causes include Faulty pressure control solenoid valve, Wiring issues such as shorts or open circuits, Malfunctioning 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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0971 Buick Description

The P0971 Buick code indicates a problem with the Pressure Control Solenoid Valve 3 Control Circuit, specifically that there is high voltage detected. The pressure control solenoid valve plays a crucial role in regulating the hydraulic pressure within the transmission. When this valve malfunctions, it can lead to issues with shifting gears smoothly, which can impact the overall performance of the vehicle.

OBDII Code P0971 Buick - Pressure Control Solenoid Valve 3 Control Circuit High Voltage
P0971 Buick Code - Pressure Control Solenoid Valve 3 Control Circuit High Voltage

Common Causes of P0971 Buick

  1. Faulty pressure control solenoid valve
  2. Wiring issues such as shorts or open circuits
  3. Malfunctioning transmission control module
  4. Low transmission fluid levels or dirty fluid
  5. Electrical issues such as a blown fuse or relay

Symptoms of P0971 Buick

  1. Harsh or delayed shifting between gears
  2. Erratic shifting patterns
  3. Transmission slipping
  4. Transmission overheating
  5. Illuminated check engine light

How to Fix P0971 Buick

  1. Begin by conducting a thorough diagnostic scan to confirm the P0971 code and identify any other related issues.
  2. Inspect the wiring harness connected to the pressure control solenoid valve for any signs of damage or corrosion. Repair or replace as necessary.
  3. Test the solenoid valve for proper operation and replace it if found to be faulty.
  4. Check the transmission control module for any faults or errors and address any issues found.
  5. Clear the trouble codes from the vehicle's computer system and test drive the vehicle to ensure the problem has been resolved.

Cost to Fix P0971 Buick

The typical repair costs for addressing a P0971 Buick code can range from $200 to $500, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnosis time and labor rates can vary, so it's recommended to get a detailed estimate from a reputable auto repair shop before proceeding with the repairs.

Need more information about the P0971 Buick code?

Need more information on how to fix the P0971 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0971 Buick code diagnosed by a professional: Find a repair shop in your area

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 P0971 Buick Code

No Frequently Asked Questions about P0971 Buick Code found.

Discuss the causes and fixes for P0971 Buick OBDII Code

Code P0971 Buick comments

No comments found for this page.