P0873 Chevrolet Code - Transmission Fluid Pressure Switch 3 Circuit High Voltage
Quick Answer
The P0873 code for Chevrolet vehicles indicates a problem with the Transmission Fluid Pressure Switch 3 Circuit High Voltage. Common causes include Malfunctioning transmission fluid pressure switch, Wiring issues in the circuit, Faulty PCM. 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
- P0873 Chevrolet indicates Transmission Fluid Pressure Switch 3 Circuit High Voltage.
- Common causes
- Common causes include Malfunctioning transmission fluid pressure switch, Wiring issues in the circuit, Faulty PCM.
- 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 P0873 Chevrolet Description
The P0873 code for Chevrolet vehicles indicates a problem with the Transmission Fluid Pressure Switch 3 Circuit High Voltage. This means that the powertrain control module (PCM) has detected that the voltage signal from the transmission fluid pressure switch 3 is higher than normal. The transmission fluid pressure switch is responsible for monitoring the fluid pressure within the transmission and sending signals to the PCM to ensure smooth gear shifting and overall transmission performance.
Common Causes of P0873 Chevrolet
- Malfunctioning transmission fluid pressure switch
- Wiring issues in the circuit
- Faulty PCM
- Low transmission fluid level
- Contaminated or degraded transmission fluid
Symptoms of P0873 Chevrolet
- Erratic shifting
- Harsh shifting
- Transmission slipping
- Check engine light illuminated
- Transmission overheating
How to Fix P0873 Chevrolet
- Perform a diagnostic scan to confirm the P0873 code and identify the specific issue.
- Inspect the transmission fluid pressure switch and wiring for any visible damage or corrosion.
- Test the transmission fluid pressure switch with a multimeter to determine if it is functioning correctly.
- Replace the transmission fluid pressure switch if it is found to be faulty.
- Clear the code and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0873 Chevrolet
The cost of repairing the P0873 code for a Chevrolet vehicle can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. Generally, the cost of replacing the transmission fluid pressure switch can range from $150 to $300, including parts and labor. Additional costs may apply if there are wiring issues or other components that need to be replaced. It is advisable to consult with a trusted mechanic or dealership to get an accurate estimate based on your vehicle's make and model.
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Information for Specific Chevrolet Models
- P0873 2014 Chevrolet Silverado — Transmission Fluid Pressure Switch 3 Circuit High Voltage
- P0873 2015 Chevrolet Silverado — Transmission Fluid Pressure Switch 3 Circuit High Voltage
- P0873 2016 Chevrolet Silverado — Transmission Fluid Pressure Switch 3 Circuit High Voltage
- P0873 2017 Chevrolet Silverado — Transmission Fluid Pressure Switch 3 Circuit High Voltage
- P0873 2018 Chevrolet Silverado — Transmission Fluid Pressure Switch 3 Circuit High Voltage
Frequently Asked Questions about P0873 Chevrolet Code
1. What are the common symptoms of OBDII code P0873 in a Chevrolet related to the Transmission Fluid Pressure Switch 3 Circuit High Voltage?
The common symptoms include harsh shifting, transmission slippage, decreased fuel efficiency, and the transmission going into limp mode.
2. What could cause the OBDII code P0873 in a Chevrolet indicating Transmission Fluid Pressure Switch 3 Circuit High Voltage?
Potential causes include a faulty transmission fluid pressure switch, damaged wiring or connectors in the transmission system, low transmission fluid level, or internal transmission issues.
3. How serious is the OBDII code P0873 in a Chevrolet concerning Transmission Fluid Pressure Switch 3 Circuit High Voltage?
This code should be addressed promptly as it can lead to further transmission damage if left unresolved. It is recommended to have the vehicle diagnosed and repaired by a qualified technician.
4. Can I continue driving my Chevrolet if the OBDII code P0873 with Transmission Fluid Pressure Switch 3 Circuit High Voltage is detected?
It is not recommended to continue driving the vehicle with this code present, as it can cause further damage to the transmission. It is best to have the issue diagnosed and repaired as soon as possible.
5. How can I diagnose and repair the OBDII code P0873 in a Chevrolet related to Transmission Fluid Pressure Switch 3 Circuit High Voltage?
Diagnosis usually involves checking the transmission fluid level and condition, inspecting the wiring and connectors, testing the transmission fluid pressure switch, and scanning for other related trouble codes. Repair typically involves replacing the faulty components and clearing the code.
6. Is it possible to clear the OBDII code P0873 in a Chevrolet indicating Transmission Fluid Pressure Switch 3 Circuit High Voltage myself?
While you can clear the code with an OBDII scanner, it is essential to address the underlying issue causing the code to prevent further transmission problems. If the issue persists, seek professional help.
7. Will resetting the OBDII code P0873 in a Chevrolet related to Transmission Fluid Pressure Switch 3 Circuit High Voltage solve the problem?
Resetting the code may temporarily remove the warning light, but it will not fix the underlying issue causing the code. It is crucial to diagnose and repair the root cause to prevent potential transmission damage.
8. How much does it typically cost to repair the OBDII code P0873 in a Chevrolet associated with Transmission Fluid Pressure Switch 3 Circuit High Voltage?
The cost of repair can vary depending on the exact cause of the code and the labor rates in your area. Generally, it may range from $200 to $500 or more, including parts and labor.
9. Can a DIY enthusiast fix the OBDII code P0873 in a Chevrolet related to Transmission Fluid Pressure Switch 3 Circuit High Voltage?
While some experienced DIYers may be able to diagnose and replace the faulty components causing the code, it is recommended to have a professional technician perform the repair due to the complexity of transmission systems.
10. How often does the OBDII code P0873 in a Chevrolet indicating Transmission Fluid Pressure Switch 3 Circuit High Voltage occur?
The occurrence of this specific code can vary depending on the vehicle's age, maintenance history, and driving conditions. It is relatively common in Chevrolet vehicles with transmission issues related to pressure switches.
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