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

- Code Popularity: 49,327 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0842?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • 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
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How to Fix the DTC P0842?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0842 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code P0842 Description

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.

OBDII Code P0842 - Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low - AutoCodes.com
P0842 Code - Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low

Need More Information on the Code?

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

Information for Specific Makes

  • P0842 Acura Transmission Fluid Pressure Switch 'A' 2nd Clutch Circuit Low
  • P0842 Buick Transmission Fluid Pressure Switch 1 Circuit Low Voltage  📷
  • P0842 Cadillac Transmission Fluid Pressure Switch 1 Circuit Low Voltage  📷
  • P0842 Chevrolet Transmission Fluid Pressure Switch 1 Circuit Low Voltage    📷
  • P0842 Dodge Transmission Fluid Pressure Sensor/Switch 'A' Circuit Low
  • P0842 GMC Transmission Fluid Pressure Switch 1 Circuit Low Voltage    📷
  • 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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Code P0842 comments

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