Code result
P22BF
O2 Sensor Negative Current Control Circuit/Open
High severity
What it means
The negative (sinking) side of the O2 sensor pumping current control circuit on bank 2 sensor 2 is open.
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
Open negative current line
highOne of the most commonly reported causes for this code — check this first.
Pin pushed back out of connector body
lowLess common, but worth ruling out after the more likely causes.
Cracked solder joint inside the module or sensor
lowLess common, but worth ruling out after the more likely causes.
Related help
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