P0726 Code: Engine Speed Input Circuit Range/Performance
🟠 Moderate severity · drivable
You can drive, but shifting may feel wrong and the transmission may go into fail-safe mode.
What P0726 means
The engine speed signal is present, but the reading is out of the expected range or doesn't match what the engine should be doing. The transmission computer relies on engine RPM to time shifts, so an out-of-range signal can cause poor shifting.
Symptoms
- Check engine light is on
- Harsh or delayed shifts
- Transmission shifts at the wrong times
- Transmission may go into fail-safe mode
Common causes
- most common: Faulty crankshaft position sensor
- common: Damaged or corroded wiring
- common: Loose or damaged sensor tone ring
- less common: Engine mechanical issue affecting RPM signal
How to fix it
| Fix | DIY? | Typical cost |
|---|---|---|
| Inspect the crankshaft sensor and its wiring | Yes | $20–60 |
| Replace the crankshaft position sensor | Yes | $50–150 |
| Repair wiring or tone ring damage | Mechanic | $100–300 |
Frequently asked questions
Can I drive with a P0726 code?
Yes, but the transmission may shift at the wrong times or go into fail-safe mode. Have it diagnosed soon.
What does range/performance mean in P0726?
It means the engine speed signal is present but the reading is outside the expected range or doesn't change the way it should.
How much does it cost to fix a P0726?
Replacing a crankshaft position sensor usually costs $50–$150 for parts plus labor. Wiring repairs are typically $100–$300.
Related codes
P0725
P0725 Code: Engine Speed Input Circuit
P0727P0727 Code: Engine Speed Input Circuit No Signal
P0728P0728 Code: Engine Speed Input Circuit Intermittent
Updated 2026-08. This page is informational and not a substitute for professional diagnosis.