Code result
P222A
Barometric Pressure Sensor B Circuit
High severity
What it means
A general electrical fault on barometric pressure sensor B — open, shorted, or out of plausibility. The sensor measures atmospheric pressure for altitude compensation; sensor B is a redundant or secondary unit.
Is it safe to drive?
No — stop driving
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.
Most likely causes
Sensor failed
highOne of the most commonly reported causes for this code — check this first.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose P222A freeNo credit card required