Engine-CodesGMC – P0847 2017 GMC Sierra

P0847 2017 GMC Sierra Code - Transmission Fluid Pressure Switch 2 Circuit Low Voltage

Quick Answer

The P0847 diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to a Transmission Fluid Pressure Switch 2 Circuit Low Voltage. Common causes include Faulty transmission fluid pressure switch, Wiring issues or electrical connection problems, Low transmission fluid levels. 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
P0847 2017 GMC Sierra indicates Transmission Fluid Pressure Switch 2 Circuit Low Voltage.
Common causes
Common causes include Faulty transmission fluid pressure switch, Wiring issues or electrical connection problems, Low transmission fluid levels.
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 18, 2024
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Code P0847 2017 GMC Sierra Description

The P0847 diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to a Transmission Fluid Pressure Switch 2 Circuit Low Voltage. This code indicates that there is an issue with the transmission fluid pressure switch circuit, specifically switch 2, where the voltage is lower than the specified range. The transmission fluid pressure switch is a crucial component in the vehicle's transmission system, responsible for monitoring and regulating the transmission fluid pressure to ensure smooth gear shifting and overall performance.

OBDII Code P0847 2017 GMC Sierra - Transmission Fluid Pressure Switch 2 Circuit Low Voltage
P0847 2017 GMC Sierra Code - Transmission Fluid Pressure Switch 2 Circuit Low Voltage

Common Causes of P0847 2017 GMC Sierra

  1. Faulty transmission fluid pressure switch
  2. Wiring issues or electrical connection problems
  3. Low transmission fluid levels
  4. Malfunctioning transmission control module
  5. Internal transmission damage

Symptoms of P0847 2017 GMC Sierra

  1. Erratic shifting
  2. Slipping gears
  3. Harsh engagement
  4. Failure to shift
  5. Reduced fuel efficiency

How to Fix P0847 2017 GMC Sierra

  1. Perform a thorough diagnosis using a scan tool to confirm the P0847 code and identify the specific cause.
  2. Inspect the wiring harness and connectors for any damage or corrosion. Repair or replace as necessary.
  3. Check the transmission fluid level and condition. Top up or replace the fluid if low or contaminated.
  4. Test the transmission fluid pressure switch 2 for proper operation. Replace if found to be faulty.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0847 2017 GMC Sierra

The typical repair costs for addressing a P0847 code on a 2017 GMC Sierra can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. It is important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Factors such as location, vehicle make and model, and engine type can also influence the overall repair costs. For a more accurate estimate, it is recommended to consult with local auto repair shops.

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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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