P0847 2014 Chevrolet Silverado Code - Transmission Fluid Pressure Switch 2 Circuit Low Voltage
Quick Answer
The P0847 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado refers to a Transmission Fluid Pressure Switch 2 Circuit Low Voltage. Common causes include Faulty transmission fluid pressure switch: The pressure switch itself may be malfunctioning, causing the voltage to drop below the expected range, Wiring issues: Damaged or corroded wiring connections can disrupt the flow of electrical signals to the pressure switch, leading to low voltage readings, Transmission control module (TCM) malfunction: A faulty TCM can fail to properly communicate with the pressure switch, resulting in voltage issues. 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 2014 Chevrolet Silverado indicates Transmission Fluid Pressure Switch 2 Circuit Low Voltage.
- Common causes
- Common causes include Faulty transmission fluid pressure switch: The pressure switch itself may be malfunctioning, causing the voltage to drop below the expected range, Wiring issues: Damaged or corroded wiring connections can disrupt the flow of electrical signals to the pressure switch, leading to low voltage readings, Transmission control module (TCM) malfunction: A faulty TCM can fail to properly communicate with the pressure switch, resulting in voltage issues.
- 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 2014 Chevrolet Silverado Description
The P0847 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado 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 the second switch, where the voltage is lower than the expected range. The transmission fluid pressure switch is a crucial component in automatic transmissions, as it helps to regulate the hydraulic pressure within the transmission. When the voltage is too low, it can lead to improper shifting, harsh gear changes, and potential damage to the transmission system.
Common Causes of P0847 2014 Chevrolet Silverado
- Faulty transmission fluid pressure switch: The pressure switch itself may be malfunctioning, causing the voltage to drop below the expected range.
- Wiring issues: Damaged or corroded wiring connections can disrupt the flow of electrical signals to the pressure switch, leading to low voltage readings.
- Transmission control module (TCM) malfunction: A faulty TCM can fail to properly communicate with the pressure switch, resulting in voltage issues.
- Low transmission fluid level: Insufficient transmission fluid can impact the pressure within the transmission, affecting the performance of the pressure switch.
- Electrical system issues: Problems with the vehicle's electrical system, such as a weak battery or alternator, can also contribute to low voltage readings in the pressure switch circuit.
Symptoms of P0847 2014 Chevrolet Silverado
- Harsh or delayed shifting: The vehicle may experience rough or delayed gear changes, impacting the overall driving experience.
- Transmission slipping: The transmission may slip out of gear or struggle to maintain the correct gear, leading to reduced acceleration and performance.
- Illuminated Check Engine Light: The Check Engine Light may illuminate on the dashboard to indicate a problem with the transmission fluid pressure switch circuit.
- Transmission overheating: The transmission may overheat due to improper fluid pressure regulation, potentially causing damage to internal components.
How to Fix P0847 2014 Chevrolet Silverado
- Diagnose the issue: Use a diagnostic scanner to retrieve the specific DTC and pinpoint the exact cause of the low voltage in the transmission fluid pressure switch circuit.
- Inspect wiring and connections: Check the wiring harness and connections related to the pressure switch for any signs of damage, corrosion, or loose connections. Repair or replace as needed.
- Test the pressure switch: Test the functionality of the transmission fluid pressure switch using a multimeter to determine if it is operating within the correct voltage range. Replace if necessary.
- Check transmission fluid level: Ensure that the transmission fluid level is at the appropriate level and top up if needed. Perform a transmission fluid flush if the fluid is old or contaminated.
- Clear codes and test drive: Clear the DTC from the vehicle's computer using the diagnostic scanner and test drive the vehicle to ensure that the issue has been resolved. Monitor for any recurring symptoms or warning lights.
Cost to Fix P0847 2014 Chevrolet Silverado
The typical repair costs for addressing a P0847 code on a 2014 Chevrolet Silverado can range from $200 to $500, depending on the specific cause of the issue and the cost of parts and labor. This estimate includes the cost of diagnosing the problem, replacing any faulty components such as the pressure switch, and labor charges for the repair process. It's important to note that the actual repair costs can vary based on the location of the repair shop, the vehicle's make and model, and the extent of the repairs needed. Additionally, factors such as diagnostic time and labor rates can impact the final cost, with rates typically ranging between $80 and $150 per hour at most auto repair shops. It's advisable to consult with a trusted mechanic or repair shop for a more accurate estimate based on the specific circumstances of the vehicle.
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