Engine-Codes - Generic - P0842

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

- Code Popularity: 49,334 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

Code Tech Notes









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How to Fix the DTC P0842?

Check 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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0842 code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the P0842 Code Mean?

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.

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

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Code P0842 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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