9-3 Viggen Coupe (9400) L4-2.3L Turbo (B235) HO (1999)
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Temperature
The temperature is connected via a control wire to the air-mixing damper. At each end position, the temperature control is locked by a mechanism to
prevent the knob from springing back and creating the wrong temperature.
On cars equipped with A/C, there is a switch for the solenoid valve, shut-off valve heater box on the back of the temperature control knob for some
markets.
Air distribution