Powertrain
generic / SAE
P0725
Engine Speed Input Circuit
A general circuit fault on the engine speed signal that the TCM receives from the ECM. Without this signal the TCM cannot synchronise gear shifts to engine load.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number7 / 25
Possible causes
- Harness fault between ECM and TCM high
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–500 €
- Estimated time: 0.6–2.5 h
- Component: engine speed signal to tcm
- MIL / check engine light
Sources
References
sae:J2012