Code result
P2606
Intake Air Heater B Circuit Range/Performance
Moderate severity
What it means
The secondary intake air heater current does not match expected resistance. Either the grid is partially open or the relay contacts have high resistance.
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
Partial element failure raises grid resistance
highOne of the most commonly reported causes for this code — check this first.
Burned relay contacts
mediumA plausible cause — test and verify before replacing parts.
Sensor element aged beyond calibration window
lowLess common, but worth ruling out after the more likely causes.
Related help
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