P0708
Transmission Range Sensor A Circuit High
Transmission range sensor
Generic OBD-II
High
What it means
P0708 means the transmission range sensor — which tells the computer whether you're in Park, Reverse, Neutral, or Drive — is sending a higher-than-expected signal. Because the car uses this for the neutral-safety start and to pick the right gear, a fault can block starting in Park/Neutral or cause wrong-gear and default-mode shifting.
High
Can I keep driving? Cautiously — the car may not crank in Park/Neutral or may shift into the wrong gear or a default mode; get it diagnosed before relying on it.
Common symptoms
What you'll notice
- Check-engine light on
- No crank/start in Park or Neutral
- Wrong gear shown on the dash, or the gear display blank
- Harsh, wrong, or default-mode shifting
Common causes
Most likely first
- Faulty transmission range (PRNDL) sensorLikely
- Open or short-to-power in the range sensor circuitCommon
- Corroded or loose connector at the sensorCommon
- Misadjusted shift linkage or failed TCM inputLess often
How to diagnose & fix
Work through it in order
- Scan and read freeze-frame to confirm the high-input fault.
- Check the range sensor / shift linkage adjustment first — a common cause of wrong readings.
- Inspect the sensor wiring and connector for opens, shorts-to-power, and corrosion.
- Test the range sensor's signal against the gear selector position; replace if faulty, then clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0708?+
Be careful. The range sensor tells the car what gear you've selected, so a fault can prevent starting in Park/Neutral or cause wrong-gear shifts. Get it checked promptly.
Can I just clear P0708?+
It returns quickly if the sensor, its adjustment, or wiring is still faulty.
Related codes
Often seen with P0708
Read & clear P0708 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX