CdMec
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DTC code

P0725

Engine Speed Input Circuit

Technical guide

Symptoms

  • Erratic transmission behavior
  • harsh shifts
  • check engine light

Probable causes

  • Engine speed input circuit fault (to TCM)
  • TCM not receiving RPM signal from ECM
  • CAN bus fault
  • wiring between ECM and TCM

Diagnostic steps

  1. Check CAN bus communication between ECM and TCM.
  2. Check wiring.
  3. Verify ECM is sending RPM signal.

Cross-checked technical synthesis (QA). It does not replace the manufacturer's procedure.

Models most reported with this code (NHTSA)

Nissan Altima 13

Count of distinct owner complaints mentioning the code. US data — same engines, same failures.

AI here is a librarian: this page shows only what mechanics confirmed, or says “unknown”. It never suggests a diagnosis — MECCANIC interprets the code, never your car.

0 confirmed cases on P0725

Nothing confirmed yet for this code. No guess is offered on purpose.

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