DTC P2072: Throttle Activator Control System - Ice Blockage
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
P2072 - THROTTLE ACTIVATOR CONTROL SYSTEM - ICE BLOCKAGE
| Description: | This DTC only identifies that the strategy has carried out several open and close cycles to remove potential ice build up. The DTC does not imply any system concerns, only that the mode has occurred, and that mode may be causing a long start time. | ||
| Possible Causes: |
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| Diagnostic Aids: | Check the PCV system for evidence of water or ice. Disconnect the air induction fresh air plenum from the throttle body. Check for water or oily residue at the PCV fresh air port. Disconnect the tube at the valve cover and check the tube for ice obstruction/ice. Start the engine and, to check the PCV system, place a piece of cardboard on the crankcase vent in the rocker cover. If the cardboard is held on the crankcase vent and fumes are not exiting, reconnect the tube to the valve cover and the air induction port. If the test passes, no further diagnosis of the PCV system is required. If the cardboard is not held in place, turn off the engine and check the PCV valve side of the system for ice or obstruction and repair as necessary. If no obstruction is found there, isolate and repair any obstruction in the intake manifold connection. If no obstruction is found there, make sure the PCV coolant heater is functional and repair as necessary. If no concern is present, make sure the PCV valve is allowing the proper vacuum flow and repair as necessary. |
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| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | Refer to the Description, Possible Causes and Diagnostic Aids for the DTC. | ||