P0708 Code: Transmission Range Sensor A Circuit High
🟠 Moderate severity · drivable
You can drive carefully, but shifting and starting may be affected until the problem is fixed.
What P0708 means
The transmission range sensor signal is reading higher than expected, which usually means an open circuit, a short to power, or a bad sensor. The computer can't trust which gear you've selected, so shifting and starting may be affected.
Symptoms
- Check engine light is on
- Gear indicator on the dash may show the wrong gear
- Car may not start in Park or Neutral
- Harsh, delayed, or no shifting
Common causes
- most common: Faulty transmission range sensor
- common: Open wiring or short to power in the sensor circuit
- common: Loose or corroded connector at the sensor
- less common: Misadjusted shift linkage
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Inspect the sensor connector and wiring for damage | Yes | $20–60 |
| Adjust the shift linkage | Yes | $50–100 |
| Replace the transmission range sensor | Mechanic | $100–350 |
Frequently asked questions
Can I drive with a P0708 code?
Usually yes, but the transmission may shift harshly or not shift at all, and some cars won't start in certain gear positions. Have it diagnosed soon.
What is the difference between P0707 and P0708?
Both are range sensor circuit faults. P0707 means the signal voltage is too low, while P0708 means it's too high. Both point to a bad sensor or a wiring problem.
How much does it cost to fix a P0708?
A range sensor replacement usually costs $100–$350 including parts and labor. Simple wiring repairs are typically cheaper.
Related codes
P0707
P0707 Code: Transmission Range Sensor A Circuit Low
P0709P0709 Code: Transmission Range Sensor A Circuit Intermittent
P0700P0700 Code: Transmission Control System Malfunction
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.