OBD-II code · Powertrain (generic, extended)
P2525 Vacuum Reservoir Pressure Sensor Circuit
General electrical fault on the vacuum reservoir pressure sensor circuit. The reservoir stores manifold or pump-generated vacuum for systems like brake booster, EGR actuators or HVAC dampers. Without a valid reading the ECM disables vacuum-pump duty cycle control.
Is it safe to drive with P2525?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen or shorted wiring to the sensor
- PossibleFailed sensor element
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.4–1.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Vacuum Reservoir Pressure Sensor, Sensor Wiring
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.