Code result
P003F
A Camshaft Profile Actuator A Control Stuck On Bank 2
Moderate severity
What it means
The intake cam profile actuator (profile A, bank 2) stays engaged when commanded off — stuck in high-lift profile. Idle quality and emissions affected.
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
Locking pin stuck engaged
highOne of the most commonly reported causes for this code — check this first.
Carbon or debris buildup preventing free movement
lowLess common, but worth ruling out after the more likely causes.
Component wear with age - mechanical play
lowLess common, but worth ruling out after the more likely causes.
Related help
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