Error code

OBD2 P0873

OBD2P0873
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Transmission Fluid Pressure Sensor/Switch 'C' Circuit High.

Severity

moderateCan drive, but may experience transmission issues if not addressed.

Summary

P0873 indicates that the transmission fluid pressure sensor C circuit is reading higher than normal, which could be due to issues in the wiring or with the sensor itself.

Common Causes

  • Wiring issue (short to positive)
  • Faulty TFP sensor
  • ECM/PCM/TCM malfunction

Fixes

  • Replace faulty TFP sensor or repair wiring issue.

FAQ

What does P0873 mean?

P0873 means the transmission fluid pressure sensor C circuit is reading higher than normal, which can affect transmission performance.

View source

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

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