P0847 2016 GMC Sierra Code - Transmission Fluid Pressure Switch 2 Circuit Low Voltage
Quick Answer
The P0847 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates an issue with the Transmission Fluid Pressure Switch 2 Circuit having low voltage. Common causes include Faulty Transmission Fluid Pressure Switch 2, Wiring or connector issues in the circuit, Low transmission fluid level or contaminated fluid. 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 2016 GMC Sierra indicates Transmission Fluid Pressure Switch 2 Circuit Low Voltage.
- Common causes
- Common causes include Faulty Transmission Fluid Pressure Switch 2, Wiring or connector issues in the circuit, Low transmission fluid level or contaminated fluid.
- 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 2016 GMC Sierra Description
The P0847 diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates an issue with the Transmission Fluid Pressure Switch 2 Circuit having low voltage. In automatic transmissions, the pressure switches are crucial for monitoring and controlling the fluid pressure within the transmission. Transmission fluid pressure is essential for the proper operation of the transmission, as it ensures smooth gear shifting, torque converter engagement, and overall transmission performance.
Common Causes of P0847 2016 GMC Sierra
- Faulty Transmission Fluid Pressure Switch 2
- Wiring or connector issues in the circuit
- Low transmission fluid level or contaminated fluid
- Malfunctioning ECU
- Electrical issues such as a blown fuse or relay
Symptoms of P0847 2016 GMC Sierra
- Harsh shifting between gears
- Delayed engagement when shifting from park to drive or reverse
- Transmission slipping
- Decreased fuel efficiency
- Illumination of the Check Engine Light
How to Fix P0847 2016 GMC Sierra
- Begin by diagnosing the specific cause of the low voltage reading, using a scan tool to retrieve the DTC and perform a visual inspection of the transmission fluid pressure switch 2 and its wiring.
- Test the switch's resistance and signal output to determine if it is functioning correctly. Replace the switch if it is found to be faulty.
- Inspect the wiring and connectors for any damage or corrosion, repairing or replacing them as needed.
- Check the transmission fluid level and condition, topping off or flushing and replacing the fluid if necessary.
- If the issue persists after these steps, further diagnostics may be required to pinpoint and resolve the underlying problem.
Cost to Fix P0847 2016 GMC Sierra
The cost of repairing a P0847 code on a 2016 GMC Sierra can vary depending on the specific cause of the issue and the labor rates at the repair facility. Typically, the cost of replacing the Transmission Fluid Pressure Switch 2 and addressing any related wiring or fluid issues can range from $150 to $400. Additional diagnostic fees and labor costs may apply, with total repair costs potentially exceeding $500 in some cases. It's advisable to consult with a qualified mechanic or repair shop for an accurate estimate based on your vehicle's specific needs and location.
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Frequently Asked Questions about P0847 2016 GMC Sierra Code
1. What does the OBDII code P0847 mean on a 2016 GMC Sierra?
P0847 indicates that the Transmission Fluid Pressure Switch 2 Circuit is experiencing low voltage, which can impact the transmission's ability to operate correctly.
2. What are the symptoms of a P0847 code in a 2016 GMC Sierra?
Common symptoms include erratic shifting, transmission slipping, reduced fuel efficiency, and the illumination of the check engine light.
3. What causes the P0847 code to appear in a 2016 GMC Sierra?
Potential causes include a faulty transmission fluid pressure sensor, wiring or connector issues, low transmission fluid levels, or internal transmission problems.
4. Can low transmission fluid cause a P0847 code in my 2016 GMC Sierra?
Yes, low transmission fluid can lead to inadequate pressure readings and trigger the P0847 code.
5. How do I diagnose a P0847 code in a 2016 GMC Sierra?
Start by checking the transmission fluid level and condition, inspecting the wiring and connectors for damage or corrosion, and testing the pressure sensor for proper functionality.
6. Is it safe to drive my 2016 GMC Sierra with a P0847 code?
Driving with a P0847 code can cause further damage to the transmission, so it’s best to address the issue promptly to avoid costly repairs.
7. How can I fix the P0847 code on a 2016 GMC Sierra?
Repairs may involve replacing the transmission fluid pressure sensor, repairing damaged wiring or connectors, or addressing internal transmission issues.
8. How much does it cost to repair a P0847 code on a 2016 GMC Sierra?
Costs vary depending on the issue, but replacing a transmission fluid pressure sensor typically ranges from $150 to $300, while wiring repairs might be less expensive.
9. Can a faulty transmission fluid pressure sensor cause shifting issues in a 2016 GMC Sierra?
Yes, a faulty sensor can result in incorrect pressure readings, leading to erratic or improper shifting.
10. Will clearing the P0847 code fix the problem on my 2016 GMC Sierra?
Clearing the code will remove the warning temporarily, but the underlying issue must be resolved to prevent the code from returning.
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