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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1080 (Electronic Engine Controls - 3.5L ECOBOOST (272KW/370PS)) >> Diagnosis And Testing >> Electronic Engine Controls >> Pinpoint Tests >> Pinpoint Test I : U0256 >> Notes

Pinpoint Test I : U0256: Notes

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DTC Fault Trigger Condition-PCM 

DTC Description Fault Trigger Conditions
U0256 Lost Communication With Front Controls Interface Module "A" The PCM sets this DTC if data messages from the FCIM through the GWM are missing.

Normal Operation and Fault Conditions 

REFER to:MODULE COMMUNICATIONS NETWORK (1 OF 2) .

Possible Sources 

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