GF83.10-D-0001H Roof Ventilator Function

GF83.10-D-0001H Roof Ventilator Function

- with CODE (H72) Electric roof fan

The roof ventilator can only be switched on or off from status "terminal 15 ON" only.
The driver can use the roof ventilator to ventilate the vehicle's load compartment. This is done with the aid of the roof ventilator switch (S163) and the roof fan motor (M78).
The driver can draw the air out of the load compartment by pressing the upper section of the roof ventilator switch. This in turn actuates the roof fan motor and the air is drawn out of the vehicle's load compartment. This continues until the driver presses the lower section of the roof ventilator switch whereupon the roof ventilator switch returns to its center position.
If the driver presses the lower section of the roof ventilator switch, the vehicle's load compartment is then ventilated. The roof fan motor is actuated and supplies air to the load compartment. This continues until the driver presses the upper section of the roof ventilator switch whereupon the roof ventilator switch returns to its center position. If the driver switches to low beams using the rotary light switch (S1), then at the same time the roof ventilator switch's integrated light emitting diode (LED) is actuated over circuit 58d. This enables the roof ventilator switch to be located easier when it is dark (switch and controls illumination).
For vehicles with code (JA5) Light/rain sensor, the LED in the roof ventilator switch is automatically activated, when the rain/light sensor (B38/2) transmits the message "Night" and the rotary light switch has been set to the "Auto" position.