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Home >> Audi >> 2013 >> A4 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 699 (Information And Entertainment Systems - 4.2-Inch (107 Mm) Screen, Am/Fm/Cd/Sync) >> Diagnosis And Testing >> Information and Entertainment System >> Pinpoint Tests >> Pinpoint Test Z : DTC U0100:00 >> Notes

Pinpoint Test Z : DTC U0100:00: Notes

WARNING: This page is about a different car, the 2016 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

Diagnostic Overview 

Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for information about these practices.

Normal Operation and Fault Conditions 

The GPSM and PCM communicate through the HS-CAN and MS-CAN, with the BCM acting as a gateway.

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U0100:00 Lost Communication with ECM/PCM "A": No Sub Type Information Set by the GPSM when network messages are missing from the PCM for more than 5 seconds with the ignition in RUN.
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