Test procedure

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Set ventilation control knobs as shown in Fig 1.
- A/C switch -E35 - OFF
- "Norm" button -1- not pressed
- "Max" button -2- not pressed
  Check components and specified functions using FRESH AIR FLOW CANNOT BE ADJUSTED - NO FRESH AIR FLOWS FROM INSTRUMENT PANEL AND FOOTWELL OUTLETS (1993 M.Y.) table:

Fig 1: A/C System Operation Troubleshooting - Fresh Air Flow Cannot Be Adjusted (1993 M.Y.)

Courtesy of VOLKSWAGEN OF AMERICA, INC.

FRESH AIR FLOW CANNOT BE ADJUSTED - NO FRESH AIR FLOWS FROM INSTRUMENT PANEL AND FOOTWELL OUTLETS (1993 M.Y.)

Components	Specified function and check	Remedy if specified function not obtained
3 - Temperature flap	Temperature flap -3- must make audible contact when temperature control knob (center) is turned back and forth to full "cold" position	Adjust temperature flap control cable
4 - Central flap	Air flows from instrument panel and footwell vents (-9-,-10-) (residual air should flow to windshield)	Adjust central flap control cable
5 - Fresh air/recirculating flap	Fresh air inlet -11- open (arrow)	Check vacuum system
5 - Fresh air/recirculating flap	Vacuum servo -6- extended (no vacuum applied)	Check fresh air recirculating flap two-way valve -N63- according to wiring diagram Check fresh air blower switch -E9- according to wiring diagram