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1989 911 Carrera Ventilation Control Lighting

Electrical and Electronic

Vehicle Information: Model: 1989; Year: 1989; Body Type: Coupe; Engine (type, size, modifications): 3.2; Total Mileage: 45,000;

I recently had some electrical gremlins repaired on my '89 3.2 Carrera,and had some questions regarding which ventilation controls should belighted and when. The ventilation controls on my car, as with all 86-89Carreras, has a two separate sliders on the top row of the ventilationcontrols. The left slider (A) controls the fresh air supply, and theright slider(B) controls the fresh air blower. When the headlights are turned on, the "fan" pictogram in the upper righthand corner only lights up when the right slider (B) is moved to positionI, II or III to turn on the fresh air blower fan. This makes sense.However, on my car, the "defrost" pictogram at the upper left side of thecontrols is now always lighted whenever the headlights are turned on,regardless of where the (fresh air supply) slider (A) is located. If theheadlights are turned on, the "defrost" pictogram in the upper left handis lighted, regardless of slider position. The light is fairly bright inthe cockpit, especially at night.Should this "defrost" pictogram in the upper left hand portion of theventilation controls always be lit whenever the headlights are turned on,regardless of slider position?Before simply disconnecting the bulb, I wanted to check and confirm thatthis is normal, or whether I have a new electrical gremlin to deal with.

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