P0712 2017 GMC Sierra Code - Transmission Fluid Temperature Sensor Circuit Low Voltage
Quick Answer
The P0712 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the Transmission Fluid Temperature Sensor Circuit registering low voltage. Common causes include Faulty Transmission Fluid Temperature Sensor: The sensor itself may be malfunctioning, providing inaccurate readings, Wiring or Connector Issues: Damage to the wiring harness or connectors in the sensor circuit can disrupt the voltage signal, Transmission Control Module (TCM) Malfunction: A problem with the TCM can affect the communication with the sensor and lead to low voltage readings. 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 2017 GMC Sierra indicates Transmission Fluid Temperature Sensor Circuit Low Voltage.
- Common causes
- Common causes include Faulty Transmission Fluid Temperature Sensor: The sensor itself may be malfunctioning, providing inaccurate readings, Wiring or Connector Issues: Damage to the wiring harness or connectors in the sensor circuit can disrupt the voltage signal, Transmission Control Module (TCM) Malfunction: A problem with the TCM can affect the communication with the sensor and lead to low voltage readings.
- 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.
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Code P0712 2017 GMC Sierra Description
The P0712 diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the Transmission Fluid Temperature Sensor Circuit registering low voltage. The transmission fluid temperature sensor is a crucial component that monitors the temperature of the transmission fluid. This information is essential for the proper operation of the transmission, as it helps regulate fluid viscosity, cooling, and overall performance. When the sensor circuit detects low voltage, it means that there is an issue with the sensor's ability to accurately measure the transmission fluid temperature.
Common Causes of P0712 2017 GMC Sierra
- Faulty Transmission Fluid Temperature Sensor: The sensor itself may be malfunctioning, providing inaccurate readings.
- Wiring or Connector Issues: Damage to the wiring harness or connectors in the sensor circuit can disrupt the voltage signal.
- Transmission Control Module (TCM) Malfunction: A problem with the TCM can affect the communication with the sensor and lead to low voltage readings.
- Low Transmission Fluid Level: Insufficient transmission fluid can impact the sensor's ability to measure temperature accurately.
- Electrical Issues: General electrical problems within the vehicle can also affect the sensor circuit and cause low voltage readings.
Symptoms of P0712 2017 GMC Sierra
- Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
- Erratic Shifting: The transmission may exhibit erratic shifting behavior, such as harsh shifts, delayed engagement, or slipping.
- Overheating: The transmission may overheat due to improper fluid temperature regulation, leading to potential damage.
- Decreased Fuel Efficiency: A malfunctioning transmission fluid temperature sensor can impact fuel efficiency as the transmission may not operate optimally.
- Transmission Stuck in Limp Mode: In severe cases, the transmission may go into limp mode to prevent further damage, limiting the vehicle's performance.
How to Fix P0712 2017 GMC Sierra
- Diagnostic Scan: Use an OBD-II scanner to retrieve the specific trouble code and confirm the issue with the transmission fluid temperature sensor.
- Inspect Wiring and Connectors: Check the wiring harness and connectors for any damage, corrosion, or loose connections. Repair or replace as needed.
- Test Transmission Fluid Temperature Sensor: Test the sensor's resistance and voltage output to determine if it is functioning correctly. Replace if necessary.
- Check Transmission Fluid Level: Ensure the transmission fluid level is at the appropriate level and top up if needed.
- Clear Codes and Test Drive: Clear the DTC from the vehicle's computer, and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0712 2017 GMC Sierra
The typical repair costs for addressing a P0712 code on a 2017 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of replacing a faulty transmission fluid temperature sensor can range from $100 to $200, including parts and labor. If the problem lies with wiring or connectors, additional labor costs may apply, bringing the total repair cost to around $200 to $400. However, if the issue is more complex and involves the transmission control module or other components, the repair costs could exceed $500.
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