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P2812 GMC Code - Transmission Control Solenoid Valve 7 Control Circuit Open

Quick Answer

When the OBD-II trouble code P2812 appears on a GMC vehicle, it indicates a problem with the Transmission Control Solenoid Valve 7 Control Circuit being open. Common causes include Faulty Transmission Control Solenoid Valve 7, Wiring or connector issues in the control circuit, Corrosion or damage to electrical connections. 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
P2812 GMC indicates Transmission Control Solenoid Valve 7 Control Circuit Open.
Common causes
Common causes include Faulty Transmission Control Solenoid Valve 7, Wiring or connector issues in the control circuit, Corrosion or damage to electrical connections.
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 08, 2024
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Code P2812 GMC Description

When the OBD-II trouble code P2812 appears on a GMC vehicle, it indicates a problem with the Transmission Control Solenoid Valve 7 Control Circuit being open. The transmission control solenoid valve is a crucial component within the transmission system that regulates the flow of transmission fluid to control gear shifting. In this case, an open circuit means that there is a break or discontinuity in the electrical connection that controls the solenoid valve.

OBDII Code P2812 GMC - Transmission Control Solenoid Valve 7 Control Circuit Open
P2812 GMC Code - Transmission Control Solenoid Valve 7 Control Circuit Open

Common Causes of P2812 GMC

  1. Faulty Transmission Control Solenoid Valve 7
  2. Wiring or connector issues in the control circuit
  3. Corrosion or damage to electrical connections
  4. ECM or TCM failure
  5. Electrical short circuit or open circuit

Symptoms of P2812 GMC

  1. Erratic shifting or difficulty shifting gears
  2. Transmission slipping or jerking during acceleration
  3. Stuck in one gear or failure to shift
  4. Illumination of the Check Engine Light
  5. Decreased fuel efficiency

How to Fix P2812 GMC

  1. Diagnose the issue by using a scan tool to read the trouble code and perform a visual inspection of the wiring and connectors.
  2. Test the Transmission Control Solenoid Valve 7 to ensure it is functioning properly.
  3. Check and repair any damaged wiring or connectors in the control circuit.
  4. Replace the faulty Transmission Control Solenoid Valve 7 if necessary.
  5. Clear the trouble code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2812 GMC

The typical repair costs for addressing the P2812 GMC trouble code can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of replacing a Transmission Control Solenoid Valve can range from $150 to $400, including parts and labor. Additional costs may be incurred if wiring or connectors need to be repaired or replaced. It's important to factor in diagnostic time and labor rates, which can vary between auto repair shops. It's recommended to consult with a professional mechanic for a more accurate cost 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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