Code result
P2529
Vacuum Reservoir Pressure Sensor Circuit Intermittent
Moderate severity
What it means
The sensor signal jumps or drops out intermittently — loose connector, vibration, or chafed harness. The ECM filters short transients but flags the input when noise exceeds limits.
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
Loose connector
highOne of the most commonly reported causes for this code — check this first.
Chafed harness
mediumA plausible cause — test and verify before replacing parts.
Connector with intermittent contact under vibration
lowLess common, but worth ruling out after the more likely causes.
Related help
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