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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.

Real-world scan data

Seen in
95
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

Common causes

Most likely first

  1. Faulty or misadjusted transmission range sensor
  2. Short to ground in the range sensor signal circuit
  3. Corroded or loose connector at the sensor
  4. Faulty transmission control module (less common)

How to diagnose & fix

Work through it in order

  1. Scan and compare the gear the module sees with the actual selector position.
  2. Check the transmission range sensor adjustment and alignment first — misadjustment is common.
  3. Inspect the signal wiring for a short to ground and check the connector for corrosion.
  4. 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

Read & clear P0707 yourself

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

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