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Home >> Ford >> 2013 >> Focus ST >> Repair and Diagnosis >> External Pages >> Different car >> Section 712 (Engine Controls (Except Diesel & Hybrid) - Powertrain DTC Descriptions - DTC P1703 - P2A04, DTC PXXXX, DTC U0046 - U300C, DTC UXXXX) >> 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 25 other vehicles, including the 2012 Lincoln Navigator L, 2012 Lincoln Navigator, 2012 Lincoln MKZ, 2012 Lincoln MKX, and 2012 Lincoln MKT. However, it is still accessible from the selected car via links, so may be relevant.
U0300 - INTERNAL CONTROL MODULE SOFTWARE INCOMPATIBILITY

Description:  The ETC system uses multiple microprocessors within the PCM, each having its own software level and function. The microprocessors must have the correct level of software in order to communicate and function together. This DTC sets when there are incompatible software levels within the PCM that control the electronic throttle control (ETC) system.
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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