Code result
P2525
Vacuum Reservoir Pressure Sensor Circuit
Moderate severity
What it means
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?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Open or shorted wiring to the sensor
highOne of the most commonly reported causes for this code — check this first.
Failed sensor element
mediumA plausible cause — test and verify before replacing parts.
Related help
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