GF91.29-P-5250SXA Rear Seats Control Unit, Component Description

GF91.29-P-5250SXA Rear Seats Control Unit, Component Description
- with CODE (223) Rear bench seat with electrically adjustable outer seats with PRE-SAFE positioning function for outer seats and outer head restraints
- with CODE (276) Memory in rear
- with CODE (872) Electrically heated left and right rear seats
- with CODE (402) Rear delux seats, including seat heating and seat ventilation

Component Identification:

Location
The rear seats control unit is located behind the paneling in the luggage compartment on the right.

Tasks
The rear seats control unit has the following tasks:
^ Actuation of seat adjustment in the rear
^ Actuation of seat belt comfort fit feature
^ Actuation of seat adjustment with PRE-SAFE

With code (276) Memory in rear:
^ Actuation of seat adjustment memory

With code (872) Electrically heated left and right rear seats or code (402) Rear deluxe seats, incl. seat heating and seat ventilation:
^ Actuation of the heated seats HS [SIH]

With code (402) Rear deluxe seats, incl. seat heating and seat ventilation:
^ Actuation of the seat ventilation

Voltage supply
The rear seats control unit provides voltage to the following components:
^ Left rear head restraint inclination adjustment motor (M18/15)
^ Right rear head restraint inclination adjustment motor (M18/16)
^ Left rear seat fore/aft adjustment motor (M18/17)
^ Right rear seat fore/aft adjustment motor (M18/18)
^ Left rear seat cushion inclination adjustment motor (M18/19)
^ Right rear seat cushion inclination adjustment motor (M18/20)
^ Left rear backrest angle adjustment motor (M27/11)
^ Right rear backrest angle adjustment motor (M28/11)

With code (872) Electrically heated left and right rear seats or code (402) Rear deluxe seats, incl. seat heating and seat ventilation:
^ Left rear seat heated cushion (R13/5)
^ Left rear backrest heated cushion (R13/6)
^ Right rear seat heated cushion (R13/7)
^ Right rear backrest heated cushion (R13/8)

With code (402) Rear deluxe seats, incl. seat heating and seat ventilation:
^ Right rear seat backrest ventilation motor group (M18/5)
^ Right rear seat cushion ventilation motor group (M18/6)
^ Left rear seat backrest ventilation motor group (M18/7)
^ Left rear seat cushion ventilation motor group (M18/8)

Discrete inputs
^ Tml. 30
^ (Term. 31)
^ Hall sensors of the motors (M18/15, M18/16, M18/17, M18/18, M18/19, M18/20, M27/11 and M28/11)

CAN signals
The rear seats control unit is a participant on the interior CAN.