Engine-CodesGMC – P0712 2014 GMC Sierra

P0712 2014 GMC Sierra Code - Transmission Fluid Temperature Sensor Circuit Low Voltage

Quick Answer

The P0712 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the Transmission Fluid Temperature Sensor Circuit registering low voltage. Common causes include Faulty Temperature Sensor: The sensor itself may be faulty and not accurately reading the transmission fluid temperature, Wiring or Connector Issues: Damage to the wiring or connectors connected to the sensor can cause a low voltage signal, Transmission Control Module Malfunction: A malfunctioning transmission control module can also trigger this code. 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
P0712 2014 GMC Sierra indicates Transmission Fluid Temperature Sensor Circuit Low Voltage.
Common causes
Common causes include Faulty Temperature Sensor: The sensor itself may be faulty and not accurately reading the transmission fluid temperature, Wiring or Connector Issues: Damage to the wiring or connectors connected to the sensor can cause a low voltage signal, Transmission Control Module Malfunction: A malfunctioning transmission control module can also trigger this code.
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 12, 2024
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Code P0712 2014 GMC Sierra Description

The P0712 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the Transmission Fluid Temperature Sensor Circuit registering low voltage. The transmission fluid temperature sensor is a crucial component of the vehicle's transmission system, responsible for monitoring the temperature of the transmission fluid. This information is essential for the proper operation of the transmission, as it helps regulate fluid viscosity and ensures optimal performance.

OBDII Code P0712 2014 GMC Sierra - Transmission Fluid Temperature Sensor Circuit Low Voltage
P0712 2014 GMC Sierra Code - Transmission Fluid Temperature Sensor Circuit Low Voltage

Common Causes of P0712 2014 GMC Sierra

  1. Faulty Temperature Sensor: The sensor itself may be faulty and not accurately reading the transmission fluid temperature.
  2. Wiring or Connector Issues: Damage to the wiring or connectors connected to the sensor can cause a low voltage signal.
  3. Transmission Control Module Malfunction: A malfunctioning transmission control module can also trigger this code.
  4. Transmission Fluid Problems: Issues with the transmission fluid, such as low levels or contamination, can affect temperature readings.

Symptoms of P0712 2014 GMC Sierra

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
  2. Erratic Shifting: The transmission may exhibit erratic shifting patterns or difficulty shifting gears smoothly.
  3. Decreased Fuel Efficiency: A malfunctioning transmission fluid temperature sensor can lead to decreased fuel efficiency as the transmission may not operate optimally.
  4. Overheating Transmission: In severe cases, the transmission may overheat due to inaccurate temperature readings, leading to potential damage.

How to Fix P0712 2014 GMC Sierra

  1. Diagnose the Issue: Begin by using a diagnostic scanner to retrieve the trouble code and identify the specific cause of the low voltage signal.
  2. Inspect Sensor and Wiring: Inspect the temperature sensor and its wiring for any damage or wear. Replace any faulty components.
  3. Check Transmission Control Module: Test the transmission control module to ensure it is functioning correctly. Replace if necessary.
  4. Verify Transmission Fluid: Check the transmission fluid level and condition. Replace if contaminated or low.
  5. Clear Codes and Test Drive: After completing the repairs, clear the trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0712 2014 GMC Sierra

The typical repair costs for addressing a P0712 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. However, as a rough estimate, parts such as a new temperature sensor or wiring may cost between $50 and $200, while labor costs can range from $100 to $300. Additional costs may apply if the transmission control module needs to be replaced or if the transmission fluid requires servicing. It's important to note that diagnosis time and labor rates can vary, so it's advisable to check with local auto repair shops for a more accurate estimate.

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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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