P0842 2015 Chevrolet Silverado Code - Transmission Fluid Pressure Switch 1 Circuit Low Voltage
Quick Answer
The P0842 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado indicates a problem with the Transmission Fluid Pressure Switch 1 Circuit registering low voltage. Common causes include Faulty Transmission Fluid Pressure Switch 1, Damaged wiring or connectors in the circuit, Low transmission fluid levels. 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
- P0842 2015 Chevrolet Silverado indicates Transmission Fluid Pressure Switch 1 Circuit Low Voltage.
- Common causes
- Common causes include Faulty Transmission Fluid Pressure Switch 1, Damaged wiring or connectors in the circuit, Low transmission fluid levels.
- 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 P0842 2015 Chevrolet Silverado Description
The P0842 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado indicates a problem with the Transmission Fluid Pressure Switch 1 Circuit registering low voltage. This switch is a crucial component of the transmission system, responsible for monitoring and regulating the fluid pressure within the transmission. When the voltage detected by the switch falls below the specified threshold, it triggers the P0842 code, indicating a potential issue with the transmission's hydraulic system.
Common Causes of P0842 2015 Chevrolet Silverado
- Faulty Transmission Fluid Pressure Switch 1
- Damaged wiring or connectors in the circuit
- Low transmission fluid levels
- Malfunctioning transmission control module
- Internal transmission issues
Symptoms of P0842 2015 Chevrolet Silverado
- Erratic shifting or delayed gear changes
- Harsh or rough transmission shifts
- Transmission slipping or jerking
- Illumination of the Check Engine Light
- Reduced fuel efficiency
How to Fix P0842 2015 Chevrolet Silverado
- Begin by conducting a thorough diagnostic scan to confirm the P0842 code and identify the specific cause of the low voltage reading.
- Inspect the Transmission Fluid Pressure Switch 1 and its wiring for any signs of damage or corrosion. Replace the switch if necessary.
- Check the transmission fluid level and condition. Top up or replace the fluid as needed.
- Test the transmission control module for proper functioning and reprogram or replace it if required.
- Clear the DTC and perform a test drive to ensure that the issue has been resolved and that the transmission is operating smoothly.
Cost to Fix P0842 2015 Chevrolet Silverado
The typical repair costs for addressing a P0842 code on a 2015 Chevrolet Silverado can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.
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Frequently Asked Questions about P0842 2015 Chevrolet Silverado Code
1. What does the OBDII code P0842 mean on a 2015 Chevrolet Silverado?
P0842 indicates "Transmission Fluid Pressure Switch 1 Circuit Low Voltage," meaning the transmission control module (TCM) has detected a low voltage signal from the fluid pressure switch.
2. What are the common symptoms of code P0842 in a 2015 Chevrolet Silverado?
Symptoms may include slipping gears, harsh shifting, delayed engagement, the transmission stuck in limp mode, and the check engine light turning on.
3. What causes the P0842 code to appear on a 2015 Chevrolet Silverado?
Common causes include a faulty transmission fluid pressure sensor, damaged wiring or connectors, low or dirty transmission fluid, or internal transmission issues.
4. Can low or dirty transmission fluid trigger the P0842 code in a 2015 Chevrolet Silverado?
Yes, low or contaminated transmission fluid can cause incorrect pressure readings and trigger the P0842 code.
5. How do you diagnose the P0842 code in a 2015 Chevrolet Silverado?
Diagnosis involves scanning for codes, inspecting the transmission fluid level and condition, checking the wiring and connectors for damage, and testing the transmission pressure sensor for proper operation.
6. Can I continue driving my 2015 Chevrolet Silverado with the P0842 code?
Driving with the P0842 code is not recommended, as it may lead to further damage to the transmission or unsafe driving conditions.
7. How is the P0842 code fixed on a 2015 Chevrolet Silverado?
Repairs may include replacing the transmission fluid pressure sensor, repairing or replacing damaged wiring and connectors, or flushing and refilling the transmission fluid.
8. How much does it cost to repair the P0842 code on a 2015 Chevrolet Silverado?
Repair costs vary but typically range from $100 to $300 for sensor replacement, while more extensive transmission repairs may cost significantly more.
9. Can a bad transmission control module (TCM) cause the P0842 code in a 2015 Chevrolet Silverado?
While rare, a malfunctioning TCM could cause the P0842 code if it fails to properly interpret sensor signals.
10. How can I prevent the P0842 code from recurring in my 2015 Chevrolet Silverado?
Regularly check and change the transmission fluid, inspect wiring and connectors for damage, and address transmission issues promptly to prevent recurrences.
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