P0708

Transmission Range Sensor A Circuit High

Q: 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.

Q: Can I just clear P0708?

It returns quickly if the sensor, its adjustment, or wiring is still faulty.

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.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

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.

Read & clear P0708 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX