P0842
Transmission Fluid Pressure Sensor/Switch A Circuit Low
Generic code
Transmission System
High severity
Hard repair
Free on OBD DashX
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What P0842 means
- “The fault code P0842 indicates that there is low voltage detected in the Transmission Fluid Pressure Sensor/Switch A circuit. This may cause issues with the vehicle's transmission, including shifting problems and reduced performance.”
Possible symptoms
- Harsh shifting or delayed shifting
- Reduced acceleration or performance
- Illuminated check engine light
- Transmission slipping or not engaging properly
Possible causes
- Faulty transmission fluid pressure sensor/switch
- Damaged wiring or connections in the circuit
- Low transmission fluid level
- Failed transmission control module
Related parts
- Transmission Fluid Pressure Sensor: Gear fluid line delivers gear fluid/oil between the various gear parts that need lubrication. The Gear fluid line pressure Sensor monitors the fluid pressure in the line. Problems lead to difficulty in shifting gears
Possible solutions
- Replace the transmission fluid pressure sensor/switch
- Inspect and repair any damaged wiring or connections
- Check and refill the transmission fluid level
- Replace the transmission control module if necessary
Free on OBD DashX
P0842 on OBD DashX
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