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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1148 (RCM Guided Routine Testing -- (2 Of 4)) >> Pinpoint Tests >> Pinpoint Test AHA: Lost Communication with PCM (No OCS) >> Normal Operation and Fault Conditions

Normal Operation and Fault Conditions

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

The RCM uses information contained in messages from the PCM sent on the HS-CAN. 

PPT AH RCM DTC FAULT TRIGGER CONDITIONS

DTC Description Fault Trigger Conditions
U0100:00 Lost Communication with ECM/PCM "A": No Sub Type Information This DTC sets if the RCM does not receive an expected message from the PCM.
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