Free API
P0847moderate severityPowertrain

Transmission Fluid Pressure Sensor/Switch B Circuit Low

on 2004 Ford Escape 3.0L V6 Duratec · AWD

What this code means

The PCM detects a voltage lower than expected from transmission fluid pressure sensor/switch B. This can affect shift timing and transmission control.

Symptoms

  • Harsh or erratic shifting
  • Transmission warning light on
  • Possible limp mode

Common causes

  • Faulty fluid pressure sensor B
  • Low transmission fluid
  • Wiring short to ground
  • Faulty PCM/TCM

Diagnostic steps

  1. Scan and record freeze frame data
  2. Check transmission fluid level and condition
  3. Inspect sensor B wiring and connector
  4. Measure sensor voltage and compare to spec

Other Powertrain codes on this vehicle

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