TransmissionSeverity Medium: diagnose soon

P0725Engine Speed Input Circuit

What it means

The transmission control module doesn't receive a usable engine speed signal.

Symptoms

  • Harsh, late or missing shifts
  • Transmission in limp mode (stuck in one gear)
  • Gearbox or check engine warning light

Common causes

  • CAN communication fault
  • Crank sensor problem
  • Wiring fault

What to check first

  1. Check engine speed in the transmission module live data
  2. Check for CAN or crank sensor codes
  3. Check wiring
Can I drive with P0725? Usually yes for a short distance, but performance or economy may suffer and the fault can get worse. Diagnose it soon.

Generic OBD-II meaning. Manufacturer-specific meanings and checks can differ; always check the service information for the car.

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P0725: questions and answers

What does P0725 mean?

P0725: Engine Speed Input Circuit. The transmission control module doesn't receive a usable engine speed signal.

What are the symptoms of P0725?

Harsh, late or missing shifts. Transmission in limp mode (stuck in one gear). Gearbox or check engine warning light.

What causes P0725?

CAN communication fault. Crank sensor problem. Wiring fault.

How do you diagnose P0725?

1. Check engine speed in the transmission module live data 2. Check for CAN or crank sensor codes 3. Check wiring

Can I drive with P0725?

Usually yes for a short distance, but performance or economy may suffer and the fault can get worse. Diagnose it soon.