P0707
Transmission Range Sensor A Circuit Low
Transmission
Generic OBD-II
High
What it means
P0707 means the transmission range sensor — the switch that tells the computer which gear the selector is in (P, R, N, D) — is sending an abnormally low-voltage signal. Because that sensor also feeds the starter interlock, the car may not crank in Park and can shift incorrectly or drop into limp mode. It usually points to a misadjusted or failed sensor, or a wiring short to ground.
High
Can I keep driving? Limited — the car may not crank in Park, may start only in Neutral, and can shift harshly or into limp mode; get it diagnosed before relying on it.
Common symptoms
What you'll notice
- No-crank in Park (may start in Neutral instead)
- Harsh, delayed, or wrong-gear shifting
- Gear position display wrong or blank
- Check-engine light on, possibly with limp mode
Common causes
Most likely first
- Faulty or misadjusted transmission range sensorLikely
- Short to ground in the range sensor signal circuitCommon
- Corroded or loose connector at the sensorCommon
- Faulty transmission control module (less common)Less often
How to diagnose & fix
Work through it in order
- Scan and compare the gear the module sees with the actual selector position.
- Check the transmission range sensor adjustment and alignment first — misadjustment is common.
- Inspect the signal wiring for a short to ground and check the connector for corrosion.
- Replace the range sensor if it fails testing; suspect the control module only after wiring is verified. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0707?+
Not really. The car may not start normally and can shift into the wrong gear or limp mode. Because the transmission range sensor also feeds the start interlock, have it fixed promptly.
Can I just clear P0707?+
It will return while the circuit reads low. The sensor, its adjustment, or the wiring short has to be corrected first.
Related codes
Often seen with P0707
Read & clear P0707 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