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

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible 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

Possible symptoms

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

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 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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