Legend of electrical function schematic for lumbar support adjustment - PE91.29-U-2055-60MAA
MODEL 164 as of Model Year 09 except CODE (409) Left/right front multicontour seat
| Item | Designation | Coordinates |
|---|---|---|
| A8/1 | Transmitter key | 3E |
| Code 242 | Electrically adjustable front passenger seat with memory function | 6C |
| Code 275 | Memory package (driver seat, steering column, mirrors) | 6C |
| F4 | Load compartment fuse and relay box | 7F |
| M25/4 | Driver lumbar support pump | 13J |
| M25/5 | Front passenger lumbar support pump | 13J |
| N10/8 | Rear SAM control module | 7H |
| N32/1 | Driver front seat adjustment control module with memory | 7C |
| N32/2 | Front passenger front seat adjustment control module with memory | 7D |
| N32/23 | Driver lumbar support regulator control unit | 13F |
| N32/24 | Front passenger lumbar support regulator control unit | 13F |
| N73 | EIS [EZS] control unit | 2E |
| S109/2 | Driver lumbar support adjustment switch | 13C |
| S109/3 | Front passenger lumbar support adjustment switch | 13D |
| U63 | Valid for seat adjustment without memory | 6F |
| CAN B | Interior CAN | 4F |
| 1 | Circuit 15R, status | 5E |
| 2 | Power supply, status ON | 8G |
| 2 | Power supply, status ON | 11E |
| 3 | Lumbar support adjustment switch, request | 13E |
| 4 | Lumbar support pump, actuation | 13H |