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2015 FORD F-150
5.0L V8 Coyote•RWD•AUTOMATIC•gas
14 active safety recalls on this vehicle — view recalls
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Repairs420Labor1001Torque8720Fluid18DTC3794Battery2Maintenance0Recalls14
P0850moderate severityPowertrain

Park/Neutral Switch Input Circuit

on 2015 Ford F-150 5.0L V8 Coyote · RWD

What this code means

The PCM detects a fault in the park/neutral position switch input circuit. This can affect starting and shift interlock functions.

Symptoms

  • No-start in park or neutral
  • Incorrect gear indication
  • Starter may not engage

Common causes

  • Faulty park/neutral switch
  • Wiring open or short
  • Corroded connector
  • Faulty PCM

Diagnostic steps

  1. Scan and record freeze frame data
  2. Verify gear position readings with scan tool
  3. Inspect switch wiring and connector
  4. Test switch continuity in each gear
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