GF91.30-P-2002Q | Heated seats switch-over function | 21.2.02 |
MODEL 209.3 up to 1.6.03 with CODE (873) Electrically heated left and right front seats
Function requirement:
Circuit 15R ON or circuit 15 ON
No undervoltage or overvoltage
The seat heater is switched on
Manual switchover
Pressing the left front HS/seat ventilation switch (N72/1s10) or the right front HS/seat ventilation switch (N72/1s11) once enables you to manually:
switch over from heating stage 2 to heating stage 1,
switch over from heating stage 1 to heating stage 2,
switch off the heated seats.
The upper control panel control module (N72/1) correspondingly reduces or increases the electric power output for the left front seat heated cushion (R13/1) and left front backrest heated cushion (R13/2) or the right front seat heated cushion (R13/3) and right front backrest heated cushion (R13/4). Switchover is indicated by illumination of one or both LEDs in the left front HS/seat ventilation switch (N72/1s10) or right front HS/seat ventilation switch (N72/1s11).
Automatic switchover in heating stage 1 after expiry of heating-up time (timer control)
The upper control panel control module (N72/1) implements the timer control for the heated seats.
If the maximum heating-up time of 5 min. is reached, the upper control panel control module (N72/1) automatically initiates the changeover from heating stage 2 to heating stage 1 to reduce the power consumption. The upper control panel control module (N72/1) reduces the electric power output for the left front seat heated cushion (R13/1) and left front backrest heated cushion (R13/2) or the right front seat heated cushion (R13/3) and right front backrest heated cushion (R13/4) and switches off the second LED in the left front HS/seat ventilation switch (N72/1s10) or right front HS/seat ventilation switch (N72/1s11).
After another 30 min. heating time the heated seats are switched off.
The heating times can be programmed via the diagnosis; the times listed in the table are ex-factory settings.
Operating condition | Heating | duty cycle | Function display |
Heating stage 1 | Heating stage 1 (Heating duration 30 min. after switch on or switchover, then heated seats OFF) | 33% | 1 red LED |
Heating stage 2 | Heating stage 2 (Heating duration 5 min. after switch on or switchover, then heating stage 1) | Output driver at continuous operation | 2 red LEDs |
Automatic switchover | Switchover from heating stage 2 to heating stage 1 after 5 min., then after 30 min. heated seats OFF | Switchover output driver continuous operation after | switchover from 2 LEDs red to 1 LED red |
Referenced documents
- gf5421p4105q Upper control panel control unit, location / task / design / function
- gf8057p4120q Electronic ignition switch control module, location/purpose
- gf9130p3007q Heated seat/seat ventilation switch, location/design/function