P2750
Intermediate Shaft Speed Sensor C Circuit Range/Performance
Transmission
Generic OBD-II
Medium
What it means
P2750 means the signal from intermediate shaft speed sensor 'C' is present but out of its expected range or not matching other speed inputs. The transmission relies on this to time shifts, so a bad reading causes harsh or erratic shifting and can trigger limp mode. The engine still starts and runs.
Medium
Can I keep driving? Usually drivable, but shifting may be harsh or the transmission may enter limp mode if it can't trust the shaft-speed signal.
Common symptoms
What you'll notice
- Check-engine light on
- Harsh, erratic, or delayed shifts
- Possible limp mode
- Speedometer or gear-selection glitches on some vehicles
Common causes
Most likely first
- Faulty intermediate shaft speed sensor CLikely
- Open, shorted, or corroded sensor wiringCommon
- Poor connector contact at the sensorCommon
- Metal debris or damage on the sensor tone ringLess often
- Faulty PCM/TCMLess often
How to diagnose & fix
Work through it in order
- Scan and watch the sensor's live signal while driving.
- Inspect the sensor connector and wiring for damage or corrosion.
- Check the sensor tip and tone ring for debris or damage.
- Test or replace the speed sensor.
- Repair wiring as needed. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P2750?+
Short trips are usually fine, but limp mode and harsh shifts warrant prompt repair.
Can I just clear P2750?+
The code returns once the sensor signal is out of range again. Fix the sensor or wiring first.
Related codes
Often seen with P2750
Read & clear P2750 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