Engine-Codes.com
Engine-Codes – Chevrolet – P0842 Chevrolet

P0842 Chevrolet Code - Transmission Fluid Pressure Switch 1 Circuit Low Voltage

Quick Answer

The P0842 code for Chevrolet indicates a problem with the transmission fluid pressure switch 1 circuit, specifically detecting low voltage. Common causes include Faulty transmission fluid pressure switch, Wiring or connector issues, 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 Chevrolet indicates Transmission Fluid Pressure Switch 1 Circuit Low Voltage.
Common causes
Common causes include Faulty transmission fluid pressure switch, Wiring or connector issues, 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.
What is this?
Table of contents Created and updated by William Orellana on Aug 30, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0842 Chevrolet Description

The P0842 code for Chevrolet indicates a problem with the transmission fluid pressure switch 1 circuit, specifically detecting low voltage. The transmission fluid pressure switch is responsible for monitoring the hydraulic pressure in the transmission system. When the voltage is below the specified threshold, it can lead to issues with shifting gears, transmission slippage, and poor overall performance. If left unaddressed, it can potentially cause damage to the transmission system, leading to costly repairs.

OBDII Code P0842 Chevrolet - Transmission Fluid Pressure Switch 1 Circuit Low Voltage
P0842 Chevrolet Code - Transmission Fluid Pressure Switch 1 Circuit Low Voltage

Common Causes of P0842 Chevrolet

  1. Faulty transmission fluid pressure switch
  2. Wiring or connector issues
  3. Low transmission fluid levels
  4. Clogged transmission fluid filter
  5. Internal transmission problems

Symptoms of P0842 Chevrolet

  1. Difficulty shifting gears
  2. Transmission slipping
  3. Harsh shifting
  4. Transmission overheating
  5. Check engine light illuminated

How to Fix P0842 Chevrolet

  1. Use a scan tool to diagnose the specific issue with the transmission fluid pressure switch.
  2. Inspect the wiring and connectors for any damage or corrosion.
  3. Check and top off transmission fluid levels if low.
  4. Replace the transmission fluid pressure switch if faulty.
  5. Clear the trouble code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0842 Chevrolet

The cost of repairing a P0842 code on a Chevrolet can vary depending on the specific issue causing the code and the labor rates in your area. In general, the cost of parts for replacing a transmission fluid pressure switch can range from $50 to $150. Labor costs can vary between $100 to $300, depending on the shop's hourly rates and the complexity of the repair. It is recommended to get quotes from local auto repair shops to get a more accurate estimate for your specific situation.

What does this mean?

Tech Notes for P0842 Chevrolet

There is a factory service bulletin for the following Chevrolet Models:
2001 Chevrolet Lumina
2001-2005 Chevrolet Venture
2001-2005 Chevrolet Venture EXT
2001-2005 Chevrolet Venture 4WD
2001-2007 Chevrolet Monte Carlo
2001-2008 Chevrolet Impala
2001-2008 Chevrolet Lumina (Export Only)
2005-2008 Chevrolet Uplander
2005-2008 Chevrolet Uplander EXT
2005-2008 Chevrolet Uplander 4WD
Chevrolet Factory Service Bulletin OBDII Code P0842













User Submitted Video

Need more information about the P0842 Chevrolet code?

Need more information on how to fix the P0842 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0842 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0842 Chevrolet Code

No Frequently Asked Questions about P0842 Chevrolet Code found.

Discuss the causes and fixes for P0842 Chevrolet OBDII Code

Submit a New Comment

Code P0842 Chevrolet comments

No comments found for this page.