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.
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