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2003 FORD THUNDERBIRD
3.9L DOHC V8 (280 hp)•FWD•AUTOMATIC•gas
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Repairs0Labor974Torque985Fluid14DTC1902Battery2Maintenance0Recalls0
P0705moderate severityPowertrain

Transmission Range Sensor Circuit (PRNDL Input)

on 2003 Ford Thunderbird 3.9L DOHC V8 (280 hp) · FWD

What this code means

Malfunction in the transmission range sensor (also called neutral safety switch or PRNDL switch).

Symptoms

  • Check Engine Light
  • Incorrect gear display
  • Starter may not engage
  • Harsh or no shifting
  • Backup lights not working

Common causes

  • Faulty range sensor/switch
  • Misadjusted linkage
  • Wiring damage
  • Corroded connector

Diagnostic steps

  1. Check shift linkage adjustment
  2. Test range sensor signals
  3. Inspect wiring
  4. Verify correct gear indication with scan tool

Repair notes

Adjust linkage or replace range sensor.

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