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Engine-Codes – GMC – P0970 GMC

P0970 GMC Code - Pressure Control Solenoid Valve 3 Control Circuit Low Voltage

Quick Answer

The P0970 diagnostic trouble code (DTC) for GMC vehicles refers to an issue with the Pressure Control Solenoid Valve 3 Control Circuit experiencing low voltage. Common causes include Faulty pressure control solenoid valve 3, Wiring issues (short circuit, open circuit, damaged wiring), 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
P0970 GMC indicates Pressure Control Solenoid Valve 3 Control Circuit Low Voltage.
Common causes
Common causes include Faulty pressure control solenoid valve 3, Wiring issues (short circuit, open circuit, damaged wiring), 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0970 GMC Description

The P0970 diagnostic trouble code (DTC) for GMC vehicles refers to an issue with the Pressure Control Solenoid Valve 3 Control Circuit experiencing low voltage. This means that there is a problem with the electrical circuit that controls the pressure control solenoid valve 3, which is responsible for regulating hydraulic pressure in the transmission. The transmission control module (TCM) monitors this circuit and when it detects that the voltage is below the specified range, it triggers the P0970 DTC.

OBDII Code P0970 GMC - Pressure Control Solenoid Valve 3 Control Circuit Low Voltage
P0970 GMC Code - Pressure Control Solenoid Valve 3 Control Circuit Low Voltage

Common Causes of P0970 GMC

  1. Faulty pressure control solenoid valve 3
  2. Wiring issues (short circuit, open circuit, damaged wiring)
  3. Malfunctioning transmission control module
  4. Poor electrical connection
  5. Low transmission fluid levels

Symptoms of P0970 GMC

  1. Erratic shifting patterns
  2. Harsh or delayed shifting
  3. Transmission slipping
  4. Limp mode activation
  5. Decreased fuel efficiency

How to Fix P0970 GMC

  1. Perform a thorough inspection of the wiring harness and connectors associated with the pressure control solenoid valve 3 circuit.
  2. Test the pressure control solenoid valve 3 for proper operation and replace if necessary.
  3. Check the transmission control module for any faults or errors and address as needed.
  4. Clear the DTC and reset the TCM to see if the issue persists.
  5. Test drive the vehicle to ensure that the transmission is operating correctly after the repair.

Cost to Fix P0970 GMC

The typical repair costs for resolving a P0970 GMC code can vary depending on the specific cause of the issue. In general, the cost of parts such as a pressure control solenoid valve 3 or wiring harness can range from $100 to $300. Labor costs can vary between $100 to $300, depending on the shop's hourly rates and the complexity of the repair. Overall, the total repair cost for addressing a P0970 DTC could range from $200 to $600. It's advisable to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model.

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Information for Specific GMC 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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