Code result
P0237
Turbocharger Boost Sensor A Circuit Low
High severity
What it means
The boost pressure A signal voltage is below the lower diagnostic threshold — open circuit, short to ground, or sensor element failure.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Sensor circuit shorted to ground or open
highOne of the most commonly reported causes for this code — check this first.
Boost pressure sensor failed
mediumA plausible cause — test and verify before replacing parts.
Connector pins corroded - high contact resistance
lowLess common, but worth ruling out after the more likely causes.
Related help
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