Powertrain
generic / SAE
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.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / 25
Possible causes
- Open or shorted wiring to the sensor high
- Failed sensor element medium
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–400 €
- Estimated time: 0.4–1.5 h
- Component: vacuum reservoir pressure sensor
- Component: sensor wiring
- MIL / check engine light
Sources
References
sae:J2012