Code result
P2A38
O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 3
Moderate severity
What it means
The control circuit for the wide-band oxygen sensor positive current pump on bank 1 sensor 3 is open. Pumping current cannot be applied for lambda regulation.
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 in pump current wire
highOne of the most commonly reported causes for this code — check this first.
Internal open in pump cell
mediumA plausible cause — test and verify before replacing parts.
Pin pushed back out of connector body
lowLess common, but worth ruling out after the more likely causes.
Related help
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