Error code
OBD2 P0847
OBD2P0847
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Transmission Fluid Pressure Sensor/Switch 'B' Circuit Low.
Severity
moderateCan be driven, but may experience shifting problems or reduced transmission performance.
Summary
P0847 indicates that the transmission fluid pressure sensor B is reporting low input to the ECM/PCM/TCM, which could mean there's an issue with the wiring or the sensor itself.
Common Causes
- Wiring issues
- Short circuit to ground
- Faulty TFP sensor
Fixes
- Inspect and repair wiring issues. Replace the faulty TFP sensor if necessary.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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