p0725
Moderate
Infiniti · Sedans
Engine Speed Input Circuit Malfunction
Quick Answer
Error code P0725 on your Infiniti Sedans means: Engine Speed Input Circuit Malfunction. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Locate engine speed sensor near transmission
2
Test sensor resistance and continuity
3
Inspect wiring harness for damage
4
Check connector for corrosion
5
Replace engine speed sensor if faulty
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Engine speed sensor
Wiring connector
Dielectric grease
Gasket for sensor housing
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