P0872 2018 Chevrolet Silverado Code - Transmission Fluid Pressure Switch 3 Circuit Low Voltage
Quick Answer
The P0872 diagnostic trouble code (DTC) indicates an issue with the Transmission Fluid Pressure Switch 3 Circuit in a 2018 Chevrolet Silverado. Common causes include Damaged wiring or connectors in the Transmission Fluid Pressure Switch 3 Circuit, Faulty Transmission Fluid Pressure Switch, Malfunctioning Transmission Control Module (TCM). 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
- P0872 2018 Chevrolet Silverado indicates Transmission Fluid Pressure Switch 3 Circuit Low Voltage.
- Common causes
- Common causes include Damaged wiring or connectors in the Transmission Fluid Pressure Switch 3 Circuit, Faulty Transmission Fluid Pressure Switch, Malfunctioning Transmission Control Module (TCM).
- 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 P0872 2018 Chevrolet Silverado Description
The P0872 diagnostic trouble code (DTC) indicates an issue with the Transmission Fluid Pressure Switch 3 Circuit in a 2018 Chevrolet Silverado. This code specifically points to a low voltage condition in the circuit, which can negatively impact the transmission's performance. The transmission fluid pressure switch is a critical component that helps regulate the fluid pressure within the transmission, ensuring smooth gear shifts and optimal performance.
Common Causes of P0872 2018 Chevrolet Silverado
- Damaged wiring or connectors in the Transmission Fluid Pressure Switch 3 Circuit
- Faulty Transmission Fluid Pressure Switch
- Malfunctioning Transmission Control Module (TCM)
- Corrosion in the electrical connectors
- Low transmission fluid levels or contaminated fluid
Symptoms of P0872 2018 Chevrolet Silverado
- Erratic shifting behavior
- Harsh gear engagements
- Transmission slipping
- Transmission overheating
- Illumination of the Check Engine Light
How to Fix P0872 2018 Chevrolet Silverado
- Begin by conducting a thorough inspection of the transmission fluid pressure switch circuit, checking for any visible damage or corrosion.
- Test the transmission fluid pressure switch using a multimeter to determine if it is functioning correctly.
- Inspect the wiring harness and connectors for any signs of damage or corrosion, repairing or replacing as needed.
- Check the transmission fluid level and condition, topping up or flushing and replacing if necessary.
- Clear the DTC with a scan tool and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0872 2018 Chevrolet Silverado
The typical repair costs for addressing a P0872 code in a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can fluctuate based on various factors, so obtaining quotes from multiple sources is recommended for a more accurate estimate.
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