Driver-Side Front Seat Adjustment Control Unit With Memory, Component Description - GF91.29-S-5223A
Model 447
With Code SF1 (Driver's seat electrically adjustable)
With Code XM7 (MOPF II)
The numbers on the pins indicate the pin numbering of the slots.
Driver's seat adjustment control unit with memory, shown on model 447.8
Fig 1: Driver-Side Front Seat Adjustment Control Unit With Memory Components Location - Model 447 With Code SF1, XM7
Overview
This document contains information on:
- General information
- Function
- Ground connection
- Power supply
General information
The driver's seat adjustment control unit with memory (N32/5) is installed under the seat surface of the driver's seat.
Function
The driver's seat adjustment control unit with memory (N32/5) actuates the various actuator motors for the driver's seat adjustment. It also regulates the optional seat heating and seat ventilation.
The following input parameters and initial parameters are read in or output over direct lines by the driver's seat adjustment control unit with memory (N32/5):
| Input factors over a direct line | Initial parameters over a direct line |
|---|---|
| Circuit 30t | - |
| Circuit 31 | - |
| - | Actuation of seat adjustment motor for seat fore/aft adjustment, driver seat (M27/1) |
| Driver's seat, seat fore/aft adjustment, seat adjustment motor, Hall sensor signal (M27/1b1) | - |
| - | Driver's seat, seat fore/aft adjustment, seat adjustment motor, Hall sensor ground connection (M27/1) |
| - | Driver's seat, height adjustment, seat adjustment motor actuation (M27/2) |
| Drivers seat, height adjustment, seat adjustment motor, Hall sensor signal (M27/2b1) | - |
| - | Driver's seat, height adjustment, seat adjustment motor, Hall sensor ground connection (M27/2) |
| - | Driver's seat, seat adjustment motor for inclination adjustment actuation (M27/3) |
| Driver's seat, seat adjustment motor for inclination adjustment, Hall sensor signal (M27/3b1) | - |
| - | Driver's seat, seat adjustment motor for inclination adjustment, Hall sensor ground connection (M27/3) |
| - | Driver's seat, seat cushion heater pad power supply (R13/1) |
| - | Driver's seat, seat cushion heater pad ground connection (R13/1) |
| - | Driver's seat, seat cushion, seat ventilation motors power supply (M18/9) |
| - | Driver's seat, seat cushion, seat ventilation motors ground connection (M18/9) |
| - | Actuation of seat adjustment motor for head restraint adjustment, driver seat (M27/4) |
| Driver's seat, head restraint adjustment, seat adjustment motor, Hall sensor signal (M27/4b1) | - |
| - | Driver's seat, head restraint adjustment, seat adjustment motor, Hall sensor ground connection (M27/4) |
| - | Actuation of seat adjustment motor for backrest inclination, driver seat (M27/5) |
| Driver's seat, seat adjustment motor for seat backrest inclination, Hall sensor signal (M27/5b1) | - |
| - | Driver's seat, seat adjustment motor for seat backrest inclination, Hall sensor ground connection (M27/5) |
| - | Driver's seat, seat backrest heater pad power supply (R13/2) |
| - | Driver's seat, seat backrest heater pad ground connection (R13/2) |
| - | Driver's seat, seat backrest, seat ventilation motors power supply (M18/10) |
| - | Driver's seat, seat backrest, seat ventilation motors ground connection (M18/10) |
| - | "Terminal 30t" supply for driver's seat lumbar support adjustment control unit (N32/23) |
| - | Driver's seat, lumbar support adjustment control unit ground connection (N32/23) and driver's seat, lumbar support pneumatic pump (M25/4) |
Input parameters and initial parameters for the following control units are sent or received by the driver's seat adjustment control unit with memory (N32/5) over the vehicle interior CAN (CANB):
| Input parameters and initial parameters via interior CAN (CANB) | Supplemental information |
|---|---|
| Battery module 48 V battery (A66) | With code M56 (48V technology) |
| Signal acquisition and actuation module (SAM) control unit (N10/1) | - |
| Left 1st rear seat row seat adjustment control unit with memory (N25/20) | With code U90 (Luxury seat, 1st seat row, left) |
| Right 1st rear seat row seat adjustment control unit with memory (N25/21) | With code U91 (Luxury seat, 1st seat row, right) |
| Anti-theft alarm system (ATA) control unit (N26/6) | With CODE FY1 (Theft protection package) |
| Parameterizable special module (PSM) control unit (N26/16) | With code ED5 (Parameterizable special module) With code JO3 (OLU Connect Unit) With code ZK0 (EASY UP pop-up roof, electric) With code ZK0 (electrohydraulic pop-up roof) With code ZK7 (MARCO POLO equipment line) |
| Trailer recognition control unit (AAG) (N28/1) | With code E57 (Electrics for trailer socket) With code Q22 (Trailer coupling with non-removable ball head) With CODE Q50 (Trailer hitch with removable ball head) |
| Front passenger seat adjustment control unit with memory (N32/6) | With CODE SF2 (Electrically adjustable front passenger seat) |
| Left 1st rear seat row seat heater/ventilation control unit (N32/12) | With code H05 (Rear seat climate control, 1st seat row) With code U90 (Luxury seat, 1st seat row, left) |
| Right 1st rear seat row seat heater/ventilation control unit (N32/13) | With code H05 (Rear seat climate control, 1st seat row) With code U91 (Luxury seat, 1st seat row, right) |
| Left 2nd rear seat row seat heater/ventilation control unit (N32/14) | With code H07 (Rear seat climate control, 2nd seat row) With code U96 (Luxury seat, 2nd seat row, left) |
| Right 2nd rear seat row seat heater/ventilation control unit (N32/15) | With code H07 (Rear seat climate control, 2nd seat row) With code U97 (Luxury seat, 2nd seat row, right) |
| Left 1st rear seat row seat massage function control unit (N32/47) | With code U90 (Luxury seat, 1st seat row, left) |
| Right 1st rear seat row seat massage function control unit (N32/48) | With code U91 (Luxury seat, 1st seat row, right) |
| Left front door control unit (N69/3) | - |
| Right front door control unit (N69/4) | - |
| Right sliding door control unit (E-LSTR) (N69/6) | With code T55 (Electric operation for right sliding door) |
| Left sliding door control unit (E-LSTL) (N69/7) | With code (T56) Electrical actuator for left sliding door |
| Overhead control panel control unit (OCP) (N70) | With code D34 (Panoramic sliding sunroof) With code LC4 (Comfort overhead control panel) With CODE FY1 (Theft protection package) |
| Electronic ignition lock (EZS) control unit (N73/8) | - |
| Panoramic sliding sunroof (PSD) control unit (N98) | With code D34 (Panoramic sliding sunroof) |
| Ambient lighting control unit (N162/1) | Model 447.8 With code LE3 (Ambient lighting with 64 colors in cockpit and rear passenger compartment), With code LE4 (Ambient lighting with 64 colors in cockpit) With code LE5 (Ambient lighting with 64 colors in Marco Polo, complete) |
| Rear seat monitoring control unit (N191) | - |
Ground connection
On left-hand drive vehicles, the "Terminal 31" ground connection is made over the auxiliary battery ground point (W10/4).
On right-hand drive vehicles, the "Terminal 31" ground connection is made over the right vehicle interior firewall ground point 2 (W43/5).
Power supply
The "circuit 30t" power supply is provided via the firewall fuse and relay module (K40/11).