Code result
P2208
NOx Sensor Heater Circuit
High severity
What it means
A general electrical fault on the heater of the bank 2 NOx sensor. NOx sensors must reach roughly 800 C to measure correctly; without heater current the sensor never enters its operating range.
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
Heater element failed
highOne of the most commonly reported causes for this code — check this first.
Heater wiring open or connector loose
mediumA plausible cause — test and verify before replacing parts.
Related help
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