P0847 2015 GMC Sierra Code - Transmission Fluid Pressure Switch 2 Circuit Low Voltage
Quick Answer
The P0847 code indicates a low voltage condition in the Transmission Fluid Pressure Switch 2 circuit of a 2015 GMC Sierra. Common causes include Faulty transmission fluid pressure switch, Damaged or corroded wiring in the switch circuit, Poor electrical connections or short circuits affecting the switch. 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 2015 GMC Sierra indicates Transmission Fluid Pressure Switch 2 Circuit Low Voltage.
- Common causes
- Common causes include Faulty transmission fluid pressure switch, Damaged or corroded wiring in the switch circuit, Poor electrical connections or short circuits affecting the switch.
- 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 P0847 2015 GMC Sierra Description
The P0847 code indicates a low voltage condition in the Transmission Fluid Pressure Switch 2 circuit of a 2015 GMC Sierra. This switch is a crucial component of the vehicle's transmission system, responsible for monitoring the hydraulic pressure within the transmission. It sends signals to the Engine Control Module (ECM) regarding the fluid pressure, which is essential for proper transmission operation. When the ECM detects a voltage level that is lower than expected from the switch, it triggers the P0847 code.
Common Causes of P0847 2015 GMC Sierra
- Faulty transmission fluid pressure switch.
- Damaged or corroded wiring in the switch circuit.
- Poor electrical connections or short circuits affecting the switch.
- Low transmission fluid levels or fluid contamination.
- Issues with the Engine Control Module (ECM) affecting signal interpretation.
Symptoms of P0847 2015 GMC Sierra
- Erratic or harsh shifting of gears.
- Slipping transmission, where the vehicle unexpectedly loses power during acceleration.
- Illuminated check engine light on the dashboard.
- Decreased fuel efficiency due to improper transmission operation.
- Transmission overheating, which may lead to additional warning lights or symptoms.
How to Fix P0847 2015 GMC Sierra
- Diagnostic Testing: Start by using a scan tool to confirm the P0847 code and check for any additional codes that may provide further insight into the issue.
- Visual Inspection: Inspect the wiring and connectors associated with the transmission fluid pressure switch for any signs of damage, corrosion, or loose connections.
- Fluid Level Check: Verify the transmission fluid level and condition. If low or contaminated, replace the fluid and filter as necessary.
- Switch Replacement: If the switch is determined to be faulty, replace it with a new component, ensuring all connections are secure and free of corrosion.
- Clear Codes and Test Drive: After repairs, clear the diagnostic codes and take the vehicle for a test drive to ensure proper operation and that the code does not reappear.
Cost to Fix P0847 2015 GMC Sierra
The typical repair costs for addressing a P0847 code can range from $150 to $600, depending on the specific issue and the components involved. This estimate includes parts such as a new transmission fluid pressure switch, which may cost between $50 and $150, and labor costs that can vary significantly. Labor rates typically range from $80 to $150 per hour, influenced by factors such as location, vehicle make and model, and engine type. In metropolitan areas or at dealerships, rates may be higher, while independent shops often charge less. It is advisable to check local rates for a more precise estimate and to obtain a detailed quote before proceeding with repairs.
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