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Home >> Audi >> 1997 >> A8 Quattro >> Repair and Diagnosis >> External Pages >> Different car >> Section 89 (On Board Diagnostic (OBD)) >> Instrument cluster, On Board Diagnostic (OBD) >> Data exchange between control modules, checking >> Checking a "two-line bus system" >> Notes

Checking a "two-line bus system": Notes

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Three or more control modules are communicating across a "two-line bus system." 

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