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U0037 - LIN BUS Circuit Low: Notes

Fig 1: LIN Bus Circuit, Driver Window Switch Sense Return Circuit & Driver Window/Door Lock Switch Wiring Diagram
GWWUS2398504Courtesy of AUDI OF AMERICA, LLC

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAM.

Possible Causes
(D903) LIN BUS CIRCUIT SHORTED TO GROUND
(D903) LIN BUS CIRCUIT SHORTED TO THE (Q911) DRIVER WINDOW SWITCH SENSE RETURN CIRCUIT
DRIVER WINDOW/DOOR LOCK SWITCH
DRIVER DOOR MODULE (DDM)