Code result
P2B8E
Intake Air O2 Sensor Heater Control Circuit High Bank 1
Moderate severity
What it means
Voltage on the intake air O2 sensor heater control line on bank 1 is above the expected window. Wire shorted to B+ or heater element open.
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
Heater wire shorted to B+
highOne of the most commonly reported causes for this code — check this first.
Open heater element
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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