GF91.29-P-5222RI Right Front Seat Adjustment Control Unit With Memory, Component Description

GF91.29-P-5222RI Right Front Seat Adjustment Control Unit With Memory, Component Description
- as of model year 2009 [models 230.4 except 230.479]
- with CODE (P99) Special model "AMG Black Series" [model 230.479]
- with CODE (494) USA version [model 230.479]
- as of model year 2009 except CODE (P99) [model 230.479]

Component Identification:

Location
The right front seat adjustment control unit with memory (N32/2) is located under the right front seat.

Task
- Control of seat adjustment in accordance with the requests sent over the interior CAN (CAN B)
- Storage of memory settings for seat, steering column and outside mirrors (for left-hand drive vehicles, memory settings for seat only)
- Actuation of easy entry/exit (RHD only)
- Seat heater control with code (873) Left and right front seat heaters
- Seat ventilation control (with code (401) Front comfort seats, incl. seat heating and seat ventilation)
- Seat belt comfort fit feature
- Actuation of rear compartment access
- Actuation of collision avoidance

These are grouped as follows:
^ Reading in of sensors and signals
^ Evaluating input factors
^ Actuation of components

Reading in of sensors and signals
These input factors are read in via the following connections:
^ Direct line
^ Interior CAN

Direct line
- Circuit 30
- Circuit 31

The following sensors are read in via direct lines:
- Right front restraint system seat belt buckle switch (S68/4) with code (494) USA version
- Vehicle-sensitive seat belt lock sensor (A60)
- Right rear compartment access switch (S137/1)
- Hall sensors of the seat adjustment motors
- Right front multicontour backrest control unit (N32/16)

Interior CAN
The switch signals for the right seat adjustment switch group (S92/2) are read in voltage-coded by the right door control unit (N69/2), sent to the interior CAN and sent to the right front seat adjustment control unit with memory.

Evaluation of input factors
The read in input parameters are evaluated by the right front seat adjustment control unit with memory. The actuation of the motors for the seat adjustment takes place via integrated relays.

Actuating components
The actuation of the components takes place via the following connections:
^ Direct line
^ Interior CAN

Direct line
The following consumers are actuated over direct lines:
- Right front seat adjustment motor group with memory (M28)
- seat heater and seat ventilation (special equipment)
- Seat belt comfort fit feature

Interior CAN
The stored seat, steering column and outside mirror positions (seat positions only for left-hand drive vehicles) are sent when requested by the right seat adjustment switch group (S92/2) to the interior

CAN. The signals are sent to the left door control unit (N69/1) right door control unit (N69/2) or the driver SAM control unit (N10/10) over the interior CAN.