P1702 – Transmission Range Sensor Circuit Fault (Ford)

Description

P1702 Ford indicates a fault in the transmission range sensor circuit.

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Symptoms

  • No start
  • Incorrect gear display
  • Harsh shifting

Causes

  • Faulty TRS sensor
  • Wiring damage
  • Connector corrosion

Diagnosis

  • Check TRS voltage
  • Inspect wiring
  • Scan TCM

Repair

  • Replace TRS sensor
  • Repair wiring
  • Clean connectors

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