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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1328 (Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid)) >> DTC Diagnosis >> 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 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.
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 3 different microprocessors within the PCM, each having its own software level and function. The 3 microprocessors must have the proper level of software in order to communicate and function together.
Possible Causes: 
Diagnostic Aids:  Verify the PCM is at the latest calibration level.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - - GO to Pinpoint Test QE .
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