Error code

OBD2 P0844

OBD2P0844
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Transmission Fluid Pressure Sensor/Switch 'A' Circuit Intermittent.

Severity

moderateCan drive but may experience shifting issues or reduced performance.

Summary

P0844 indicates an intermittent issue with the transmission fluid pressure (TFP) sensor A circuit, which is located in the transmission system.

Common Causes

  • Poor wiring connection
  • Faulty TFP sensor
  • ECM/PCM/TCM malfunction

Fixes

  • Repairing wiring, replacing the TFP sensor, or diagnosing and repairing the ECM/PCM/TCM.

FAQ

What does P0844 mean?

P0844 indicates an issue with the transmission fluid pressure sensor A circuit that is intermittent.

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.