Switching off heated seats, function - GF91.30-P-2001B

MODEL 210 with CODE (401a) Front seat ventilation

Fig 1: Identifying Front HS Seat Ventilation Control Module, Left And Right Front HS Ventilation Switch (Off Heated)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Function prerequisite:

Heated seat switched on (heating stage 1 or 2). One or both red LEDs in left front HS and seat ventilation switch (N25/7s1) or right front HS and seat ventilation switch (N25/7s2) indicates the heating stage selected.

Function

The front HS and seat ventilation control module (N25/7) interrupts the circuit to the heating elements in the seat when one of the switch-off conditions described below is present and simultaneously switches off the LED.

Switching-off by actuating switch

Switch-off when heater stage 2 is switched on The switch-off operation is actuated by pressing the top half of the switch twice .
Switch-off when heater stage 2 is switched on The switch-off operation is actuated by pressing the top half of the switch once .

Automatic switch-off with ignition (C. 15) OFF

The switch-off operation is actuated by switching off the ignition, ignition/starter switch in position "0".

Automatic switch-off after expiration of maximum heating time

Function prerequisite:

Heated seat switched on in heating stage 1. One of the two red LEDs next to the left front HS and seat ventilation switch (N25/7s1)/ right front HS and seat ventilation switch (N25/7s2) burning.

Function

After reaching the maximum heating time of approx. 30 min, the heated seat control module automatically starts the switch-off operation for the heated seat. The front HS and seat ventilation control module (N25/7) interrupts the circuit to the heating elements in the seat and simultaneously switches off the LED.

Automatic switch-off when malfunction is present

When a malfunction is present, the front HS and seat ventilation control module (N25/7) switches off the circuit to the heating elements in the seats (malfunction switch-off).

A malfunction switch-off is accomplished when:

voltage too low
voltage too high
overheating
short circuit at control module output

	Control module malfunction switch-off, function		GF91.30-P-2007A
	Heated seat/seat ventilation switch, location/purpose		GF91.30-P-3004A
	Heated seat and seat ventilation control module, location/purpose		GF91.30-P-3005A