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2015 LINCOLN NAVIGATOR
3.5L EcoBoost V6•4WD•AUTOMATIC•gas•turbo
4 active safety recalls on this vehicle — view recalls
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Repairs0Labor497Torque708Fluid10DTC1901Battery1Maintenance0Recalls4
P0848moderate severityPowertrain

Transmission Fluid Pressure Sensor/Switch B Circuit High

on 2015 Lincoln Navigator 3.5L EcoBoost V6 · 4WD

What this code means

The PCM detects a voltage higher than expected from transmission fluid pressure sensor/switch B. Shift quality and transmission protection may be impacted.

Symptoms

  • Harsh shifting
  • Transmission warning light on
  • Delayed engagement

Common causes

  • Faulty fluid pressure sensor B
  • Open or high-resistance wiring
  • Corroded connector
  • Faulty PCM/TCM

Diagnostic steps

  1. Scan and record freeze frame data
  2. Inspect sensor B connector and wiring
  3. Check for open circuit or high resistance
  4. Test sensor signal voltage against spec
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