P0842 2017 Chevrolet Silverado Code - Transmission Fluid Pressure Switch 1 Circuit Low Voltage
Quick Answer
The P0842 code for a 2017 Chevrolet Silverado indicates a problem with the Transmission Fluid Pressure Switch 1 Circuit, specifically reporting low voltage. Common causes include Faulty transmission fluid pressure switch, Damaged wiring or connectors in the circuit, Malfunctioning transmission control module. 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 2017 Chevrolet Silverado indicates Transmission Fluid Pressure Switch 1 Circuit Low Voltage.
- Common causes
- Common causes include Faulty transmission fluid pressure switch, Damaged wiring or connectors in the circuit, Malfunctioning transmission control module.
- 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 2017 Chevrolet Silverado Description
The P0842 code for a 2017 Chevrolet Silverado indicates a problem with the Transmission Fluid Pressure Switch 1 Circuit, specifically reporting low voltage. The transmission fluid pressure switch is a crucial component in automatic transmissions, responsible for monitoring the pressure of the transmission fluid. Low voltage in this circuit can lead to a variety of issues that can affect the vehicle's performance and overall functionality.
Common Causes of P0842 2017 Chevrolet Silverado
- Faulty transmission fluid pressure switch
- Damaged wiring or connectors in the circuit
- Malfunctioning transmission control module
- Low transmission fluid level
- Internal transmission damage
Symptoms of P0842 2017 Chevrolet Silverado
- Harsh or delayed shifting
- Slipping gears
- Difficulty in moving the vehicle
- Illumination of the check engine light
How to Fix P0842 2017 Chevrolet Silverado
- Begin by diagnosing the specific cause of the low voltage in the Transmission Fluid Pressure Switch 1 Circuit using a diagnostic scanner.
- Inspect the wiring and connectors associated with the transmission fluid pressure switch for any damage or corrosion. Repair or replace as necessary.
- Test the transmission fluid pressure switch to determine if it is functioning correctly. Replace the switch if it is found to be faulty.
- Check the transmission control module for any faults or errors. Reset or replace the module if needed.
- Refill the transmission fluid to the appropriate level and test the vehicle to ensure that the issue has been resolved.
Cost to Fix P0842 2017 Chevrolet Silverado
The typical repair costs for addressing a P0842 code in a 2017 Chevrolet Silverado can range from $200 to $500, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Factors such as location, vehicle make and model, and the type of engine can also impact the overall repair costs. It is advisable to consult with a professional mechanic for a more precise estimate based on the specific circumstances of the vehicle.
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Frequently Asked Questions about P0842 2017 Chevrolet Silverado Code
1. What does OBDII code P0842 mean on a 2017 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 transmission fluid pressure sensor circuit.
2. What are the common symptoms of code P0842 in a 2017 Chevrolet Silverado?
Common symptoms include harsh or delayed shifting, transmission slipping, failure to shift gears, reduced fuel efficiency, and the illumination of the check engine light.
3. What causes the P0842 code to appear on a 2017 Chevrolet Silverado?
Typical causes include a faulty transmission fluid pressure sensor, damaged wiring or connectors in the sensor circuit, low transmission fluid levels, or a malfunctioning transmission control module (TCM).
4. Can low transmission fluid cause the P0842 code?
Yes, low transmission fluid can cause this code because it may lead to insufficient pressure readings from the transmission fluid pressure sensor.
5. How do you diagnose the P0842 code on a 2017 Chevrolet Silverado?
Diagnosis involves checking the transmission fluid level, inspecting the wiring and connectors for damage, testing the transmission fluid pressure sensor, and scanning for additional codes using an OBDII scanner.
6. Can you drive a 2017 Chevrolet Silverado with code P0842?
Driving with this code is not recommended, as it may lead to transmission damage or unsafe driving conditions due to shifting issues.
7. How do you fix the P0842 code on a 2017 Chevrolet Silverado?
Repairs may include replacing the transmission fluid pressure sensor, repairing or replacing damaged wiring or connectors, topping off or flushing transmission fluid, or, in rare cases, replacing the TCM.
8. How much does it cost to fix the P0842 code on a 2017 Chevrolet Silverado?
Repair costs vary but typically range from $100 to $300 for sensor replacement. Additional costs may apply for wiring repairs or TCM replacement.
9. Can a dirty transmission filter trigger the P0842 code?
Yes, a clogged transmission filter can restrict fluid flow, leading to low pressure readings and potentially triggering the P0842 code.
10. Will resetting the check engine light fix the P0842 code?
Resetting the light may temporarily clear the code, but the underlying issue must be addressed to prevent the code from returning.
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