P0705 Code: Transmission Range Sensor Circuit Malfunction (PRNDL Input)
🟠 Moderate severity · drivable
Drivable, but the vehicle may not start in Park and shifting can be affected, so fix it soon.
What P0705 means
The transmission range sensor (also called the neutral safety switch) is sending an invalid signal, so the computer can't tell what gear is selected. This sensor tells the computer whether the transmission is in Park, Reverse, Neutral, or Drive.
Symptoms
- Check engine light is on
- Vehicle won't start in Park (may start in Neutral)
- Gear display wrong or blank
- Harsh or erratic shifting
Common causes
- most common: Faulty transmission range sensor
- common: Misadjusted shift linkage
- less common: Damaged wiring or loose connector
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Replace the transmission range sensor | Yes | $100–300 |
| Adjust the shift linkage | Mechanic | $50–150 |
| Repair damaged sensor wiring | Mechanic | $50–150 |
Frequently asked questions
Can I drive with a P0705 code?
Yes, but the vehicle may not start in Park and shifting can be affected. Fix it soon.
What is the most common cause of P0705?
A faulty transmission range sensor or misadjusted shift linkage.
How much does it cost to fix a P0705?
Typically $100–$300 for a new range sensor, or less for a linkage adjustment.
Related codes
P0706
P0706 Code: Transmission Range Sensor Circuit Range/Performance
P0700P0700 Code: Transmission Control System Malfunction
P0707P0707 Code: Transmission Range Sensor A Circuit Low
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.