(Electrical Function Schematic For Front Seat Heater - PE91.30-P-2056-97NAA)
Model 166 up to model year 2016 with code 401 (Climatised front seats) Model 166 up to model year 2016 with code 873 (Left and right drivers seat heating)
| Code: | Designation: | Position: |
|---|---|---|
| 1 | Circuit 15, status | 12H |
| 2 | Seat heater button, status | 12E |
| 2 | Seat heater button, status | 9H |
| 2 | Seat heater button, status | 17F |
| 2 | Seat heater button, status | 17H |
| 2 | Seat heater button, status | 9E |
| 3 | Seat heater, actuation | 21J |
| 3 | Seat heater, actuation | 21E |
| 3 | Seat heater, actuation | 5J |
| 3 | Seat heater, actuation | 5D |
| 4 | Seat heater status indication, signal | 12C |
| 4 | Seat heater status indication, signal | 10G |
| 4 | Seat heater status indication, signal | 14F |
| 4 | Seat heater status indication, signal | 14H |
| 4 | Seat heater status indication, signal | 10F |
| CAN B | Interior CAN | 15G |
| CAN B | Interior CAN | 15G |
| CAN B | Interior CAN | 12J |
| LIN B12 | Center console switch LIN | 9H |
| LIN B12 | Center console switch LIN | 9F |
| LIN B15 | Battery sensor LIN | 12D |
| N10 | SAM control unit | 12F |
| N32/1 | Driver seat control unit | 7H |
| N32/1 | Driver seat control unit | 17H |
| N32/2 | Front passenger seat control unit | 7D |
| N32/2 | Front passenger seat control unit | 17D |
| N72/1 | Upper control panel control unit | 12B |
| N72/1s10 | Left front heated seat button | 9A |
| N72/1s11 | Right front heated seat button | 14A |
| N73 | Electronic ignition switch control unit | 12J |
| R13/1 | Left front seat sitting surface heated cushion | 21G |
| R13/1 | Left front seat sitting surface heated cushion | 2H |
| R13/2 | Left front backrest heated cushion | 21H |
| R13/2 | Left front backrest heated cushion | 2H |
| R13/3 | Right front seat sitting surface heated cushion | 21C |
| R13/3 | Right front seat sitting surface heated cushion | 2D |
| R13/4 | Right front backrest heated cushion | 21D |
| R13/4 | Right front backrest heated cushion | 2D |
| U63 | Valid for seat adjustment without memory function | 1C |
| U71 | Valid for fully electric seat adjustment with memory function | 13C |