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Home >> Audi >> 1994 >> 90 CS Quattro >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Testing >> System Check

System Check

Check fuses No. 9 and 14. Ensure brakelight operation is correct. Disconnect vacuum pump hose. Press in on actuator diaphragm. Plug vacuum pump hose. Actuator diaphragm should remain in place. Repair or replace components as necessary.