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P0705: Transmission range sensor circuit malfunction (PRNDL input)

Drive carefully. Get it checked within a week or two.

Can I drive with P0705?

Yes, but drive carefully and get it checked soon. Car doesn't know what gear is selected; may refuse to start or shift harshly.

What does P0705 mean?

P0705 stands for Transmission Range Sensor Circuit Malfunction (PRNDL Input).

Symptoms you may notice

  • Transmission locked in 3rd gear limp mode (won't shift up or down)
  • Harsh clunking sound when shifting into Drive or Reverse
  • Engine revs high without vehicle accelerating (slipping gear)

How much does it cost to fix?

Repair costs for code P0705 depend on the specific underlying root cause, ranging from simple DIY checks to component replacement. The table below lists the most common causes and rough price ranges in USD:

  • Faulty or misadjusted transmission range sensor (neutral safety switch)
    $90-$250 common
  • Corroded wiring plug at the transmission case
    $40-$100 possible
  • Stretched or loose shifter linkage cable
    $60-$180 possible
  • Internal mechanical selector failure
    $250-$700 rare

What to do next

  1. Verify the gear indicator on the dashboard accurately highlights Park, Reverse, and Drive.
  2. If the car won't crank, try jiggling the shifter in Park or shifting into Neutral.
  3. Inspect the range switch connector on the outside of the transmission.
Last updated: October 2026

Related codes

General guidance only, not a professional diagnosis. If the check-engine light is flashing, or the car is running rough, overheating or losing power, stop driving and get help.

About this code

Code P0705 occurs when the transmission range sensor sends confusing signals (like signaling Reverse and Drive at the same moment). Your backup reverse lights may not work, and the starter may not engage unless you wiggle the shift lever. Replacing the external switch restores normal operation.