Call up stored seat positions, function

P91.29-2342-09

Shown on vehicles as from 1.7.02

1 Circuit status

2 Door contact status

3 Adjust request

4 Motor actuation

5 Position measurement

M27m1 Fore/aft motor

M27m2 Rear up/down motor

M27m3 Front up/down motor

M27m4 Head restraint up/down motor

M27m5 Backrest motor

M28m1 Fore/aft motor (for code (242b) front passenger seat electrically adjustable with memory)

M28m2 Motor backward, raise and lower (for code (242b) front passenger seat electrically adjustable with memory)

N69/1 Left front door control unit

N69/2 Right front door control unit

N73 DI control unit

S17/3 Left front door contact switch

S17/4 Right front door contact switch

S91/2 Left front door ESA switch group (with memory)

S91/2s14 Memory location 1, 2, 3 switch

S92/2 Seat adjustment switch group for right front door (memory) (for code (242b) front passenger seat electrically adjustable with memory)

S92/2s14 Memory switch 1, 2, 3 (for code (242b) front passenger seat electrically adjustable with memory)

CAN-B Controller area network bus class B (interior compartment) (CAN B)

M28m3 Motor forward, raise and lower (for code (242b) front passenger seat electrically adjustable with memory)

M28m4 Motor for head restraint, raise and lower (for code (242b) front passenger seat electrically adjustable with memory)

M28m5 Backrest motor (for code (242b) front passenger seat electrically adjustable with memory)

N10/2 Rear SAM control unit with fuse and relay module

N32/1 Driver front seat adjustment control unit with memory

N32/2 Passenger-side front seat adjustment control unit with memory (for code (242b) front passenger seat electrically adjustable with memory)

Automatic seat adjustment function

The driver seat can be automatically moved to a previously stored position using the left front door seat adjustment switch group (memory) (S91/2), the front passenger seat using the right front door seat adjustment switch group (memory) (S92/2).

 Additionally, on the driver side, each memory contains the positions of

 the steering column,

 the left electrically adjustable and heated outside mirror and

 the right electrically adjustable and heated outside mirror

and by the Flexible Service System WS/FSS.

Function requirements

 Circuit 15R ON,

 Circuit 15 ON,

 Particular door open,

 Voltage not to high or too low

 Normalization of driver or front passenger seat,

 No manual seat adjust request,

 No manual steering column adjust request or

 No manual outside mirror adjust request.

Function

In order to be able to move to a stored seat position, the corresponding memory switch 1, 2, 3 (S91/2s14 or S92/2s14) on the left front door seat adjustment switch group (memory) (S91/2) or on the right front door seat adjustment switch group (memory) (S92/2) has to be held pressed until the stored position is reached.

Actuation of the motors (M27m1, M27m2, M27m3, M27m4, M27m5, M28m1, M28m2, M28m3, M28m4 or. M28m5) up to the stored position is performed by the driver-side front seat adjustment control unit with memory (N32/1) or the passenger-side front seat adjustment control unit with memory (N32/2).

Collision prevention function

In order to avoid any collision of the head restraints with the headliner, the head restraint motor, raise and lower (M27m4) or the head restraint motor, raise and lower (M28m4) is actuated last.