P0873 – Transmission Fluid Pressure Sensor C High Input

Description

The ECM detects a high voltage signal from TFPS C.

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Symptoms

  • Harsh shifting
  • Limp mode
  • Delayed engagement

Causes

  • Open circuit
  • Faulty sensor
  • Wiring issues

Diagnosis

  • Monitor sensor voltage
  • Inspect wiring
  • Check fluid

Repair

  • Repair wiring
  • Replace sensor