Troubleshooting table

Fig 1: Line Leaking - Troubleshooting Table (RS6)

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Courtesy of AUDI OF AMERICA, INC.

To check power supply, see SERVOTRONIC, CHECKING VOLTAGE SUPPLY .
To check vehicle speed signal, see SPEED SIGNAL, CHECKING .
To check Servotronic valve, see SERVOTRONIC VALVE, CHECKING .