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Home >> Audi >> 2013 >> A4 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 792 (Information And Entertainment Systems - 4.2-Inch (107MM) 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 2017 Lincoln Navigator and 2017 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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