IAPU family
IAPU_a048_brakePressureSensorFail
Air dryer error detected
What does the IAPU_a048_brakePressureSensorFail alert mean?
Pressure sensor in C1 or C2 is out of range.
What you'll see in your Tesla
- Air dryer error detected
- Service is required
Potential impact
Decreased brake activity
Affected models
Semitruck
Track your Tesla's alerts automatically
Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.