Code result
P201D
Intake Manifold Runner Control Actuator Internal Performance
Moderate severity
What it means
Internal self-diagnostics of the IMRC actuator on bank 1 report an off-spec condition — driver stage, position-feedback or thermal limit no longer matches the calibrated profile.
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
Actuator internal driver or sensor fault
highOne of the most commonly reported causes for this code — check this first.
Actuator overheated and derated
lowLess common, but worth ruling out after the more likely causes.
Related help
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