Code result
B0170
HVAC Mode Door Position Sensor
Moderate severity
What it means
The HVAC control module reports an implausible position signal from the mode (air distribution) door feedback sensor. Without valid feedback the actuator cannot be regulated to the correct position.
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
Mode door position sensor failed
highOne of the most commonly reported causes for this code — check this first.
Wiring or connector fault to actuator
mediumA plausible cause — test and verify before replacing parts.
Related help
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