P1706 – Neutral Switch Input Fault (Ford)

Description

P1706 Ford indicates the neutral switch signal is invalid or missing.

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Symptoms

  • No start
  • Incorrect gear indication
  • Harsh shifting

Causes

  • Faulty neutral switch
  • Wiring damage
  • Connector corrosion

Diagnosis

  • Check switch input
  • Inspect wiring
  • Test switch operation

Repair

  • Replace neutral switch
  • Repair wiring
  • Clean connectors