Test procedure

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Set ventilation control knobs as shown in Fig 1.

Fig 1: A/C System Operation Troubleshooting - Insufficient Or No Heat Output (1993 M.Y.)
Courtesy of VOLKSWAGEN OF AMERICA, INC.
- A/C switch -E35 - OFF
- "Norm" button -2- not pressed
- "Max" button -3- not pressed
  Check components and specified functions using INSUFFICIENT OR NO HEAT OUTPUT (1993 M.Y.) table:

INSUFFICIENT OR NO HEAT OUTPUT (1993 M.Y.)

Components	Specified function and check	Remedy if specified function not obtained
4 - Temperature flap	Temperature flap -4- must make audible contact when temperature control knob (center) is turned back and forth to full "cold" position	Adjust temperature flap control cable
5 - Heater core	Warm	Check engine cooling system thermostat, refer to appropriate article in Cooling System (Mechanical) in ENGINE.