DTC P2004: Intake Manifold Runner Control (IMRC) Stuck Open (Bank 1)

WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2006 Mercury Mountaineer, 2006 Mercury Monterey, 2006 Mercury Montego, 2006 Mercury Mariner, and 2006 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.

P2004 - INTAKE MANIFOLD RUNNER CONTROL (IMRC) STUCK OPEN (BANK 1)

Description:	This DTC is set when the IMRC is commanded closed, but the IMRC monitor indicates open. This DTC replaces P1518 and P1537.
Possible Causes:	IMRC monitor signal circuit shorted to PWR GND or SIG RTN Damaged IMRC actuator or solenoid Blocked vacuum hoses
Diagnostic Aids:	Monitor the IMRC and IMRCM PIDs. The IMRCM state should change when the IMRC is commanded open or closed.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to Pinpoint Test HU .