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Engine-Codes - Generic - P0842

P0842 - Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

P0842 Possible Causes

What does this mean?
  • Low transmission fluid level
  • Dirty transmission fluid
  • Faulty Transmission Fluid Pressure Sensor/Switch 'A'
  • Transmission Fluid Pressure Sensor/Switch 'A' harness or connectors
  • Transmission Fluid Pressure Sensor/Switch 'A' circuit is open or shorted
  • Transmission internal mechanical problem

How is the P0842 code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the P0842 code

Labor: 1.0

The cost to diagnose the P0842 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0842 Meaning

The Transmission Control Module (TCM) monitors the Transmission Fluid Pressure Sensor/Switch signal. The TCM sets the OBDII code when the Transmission Fluid Pressure Sensor/Switch is not to factory specifications.

More Information

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Information for specific makes

  • P0842 ACURA Transmission Fluid Pressure Switch 'A' 2nd Clutch Circuit Low
  • P0842 BUICK Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low
  • P0842 CADILLAC Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low
  • P0842 CHEVROLET Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low
  • P0842 DODGE Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low
  • P0842 GMC Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low
  • P0842 HONDA Transmission Fluid Pressure Switch 'A' 2nd Clutch Circuit Low
  • P0842 MERCEDES-BENZ Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low
  • P0842 OLDSMOBILE Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low
  • P0842 PONTIAC Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low
  • P0842 SATURN Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low

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