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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 765 (Engine Controls - Powertrain DTC Charts & Description (Except Diesel & Hybrid)) >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> DTC U0300: Internal Control Module Software Incompatibility

DTC U0300: Internal Control Module Software Incompatibility

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.
U0300 - INTERNAL CONTROL MODULE SOFTWARE INCOMPATIBILITY

Description:  This DTC indicates that there are incompatible software levels within the powertrain control module (PCM) that control the electronic throttle control (ETC) system. The ETC system utilizes three different chips (Power PC, TPPC and E-quizzer) within the PCM, each having its own software level and function. The three chips must have the proper level of software in order to communicate and function together.
Possible Causes:   
Diagnostic Aids:  DTC U0300 can be set in combination with P2105. Check and confirm the correct, latest version of software is present on the PCM, and reflash the PCM if required.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All Refer to the module programming feature on your diagnostic tool and program the powertrain control module (PCM) to the latest level.
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