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DTC P2006: Intake Manifold Runner Control (IMRC) Stuck Closed (Bank 1)

WARNING: This page is about a different car, the 2006 Mercury Mariner and 2006 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
P2006 - INTAKE MANIFOLD RUNNER CONTROL (IMRC) STUCK CLOSED (BANK 1)

Description:  The DTC is set when the IMRC is commanded open, but the IMRCM indicates closed.
Possible Causes: 
  • IMRC monitor circuit open.
  • IMRC control circuit open.
  • IMRC monitor circuit short to VREF.
  • Damaged IMRC actuator or solenoid.
Diagnostic Aids:  An intake manifold runner control monitor (IMRC) PID reading at VREF with engine RPM of at least 3,000 may indicate a fault.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test HU .