Powertrain
Definition only
Lights the check engine lamp
P25F0: Vacuum Pump Control Circuit B Low
Standardized SAE J2012 code · P25xx — Auxiliary inputs
What does P25F0 mean?
Voltage on the secondary vacuum pump control line is below the expected window. Usually a short to ground or a shorted motor winding.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Control wire shorted to ground
- Medium Internal short in pump motor winding
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P25F0 on the same make and model first.
P25F0 in the community
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