P0792
Intermediate Shaft Speed Sensor A Circuit Range/Performance
Transmission / speed sensor
Generic OBD-II
Medium
What it means
P0792 means the intermediate shaft speed sensor's signal is present but out of its expected range or doesn't agree with the other speed sensors. The transmission relies on this reading to time and verify shifts, so a bad signal usually causes harsh or erratic shifting and can trigger limp mode — but it does not prevent the engine from starting.
Medium
Can I keep driving? Usually drivable but shifting may be harsh or erratic and the transmission may enter limp mode — the engine still starts and runs. Get it diagnosed soon.
Common symptoms
What you'll notice
- Harsh, erratic, or delayed shifting
- Transmission slipping or flaring between gears
- Limp mode (stuck in one gear)
- Speedometer or gear-position readings that behave oddly
- Check-engine light on
Common causes
Most likely first
- Failed intermediate shaft speed sensorLikely
- Damaged wiring or a corroded connector at the sensorCommon
- A damaged reluctor/tone ring the sensor readsCommon
- Metal debris or contaminated fluid affecting the sensor tipLess often
- Failed transmission control module (TCM)Less often
How to diagnose & fix
Work through it in order
- Scan for codes and read freeze-frame data to confirm the fault.
- Inspect the sensor wiring and connector for damage, corrosion, or loose pins.
- Compare the intermediate shaft speed reading on a scan tool against input/output shaft speeds during a road test.
- Remove and inspect the sensor and its reluctor ring for debris, chips, or damage.
- Replace the sensor if it's out of spec; suspect the TCM only if wiring and sensor are good. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0792?+
The engine starts and runs normally, but the transmission may shift poorly or go into limp mode, so drive gently and get it looked at soon.
Can I just clear P0792?+
It will clear, but returns once the module sees the bad or missing speed signal again unless the sensor or wiring is repaired.
Related codes
Often seen with P0792
Read & clear P0792 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