Calling up stored positions, function

P88.79-2001-09

Calling up stored positions

(driver, front passenger)

1 CAN message: "Current storage block" (depends on ignition/starter key)

2 Actuation of the respective motors

3 Feedback of the current position

A67 Inside mirror unit

K40/6 Left front fuse and relay module

K40/6kD Relay 1 Jacket tube longitudinal adjustment

K40/6kE Relay 2 Jacket tube longitudinal adjustment

K40/6kI Relay 1 Jacket tube height adjustment

N10/6 Left front SAM control module

N10/6 Left front SAM control module

N32/1 Left front seat adjustment control module with memory

N32/2 Right front seat adjustment control module with memory

N69/1 Left front door control module

N69/2 Right front door control module

N70 Overhead control panel control module

N73 EIS control module

S50/1 Outside mirror switch with mirror fold-in/fold-out facility

K40/6kI Relay 1 Jacket tube height adjustment

K40/6kJ Relay 2 Jacket tube height adjustment

M20 ESC [ELV] motor

M21/1 Left electrically adjustable and heated exterior mirror

M21/2 Right electrically adjustable and heated exterior mirror

M27 Left front seat adjustment motor group with memory

M28 Right front seat adjustment motor group with memory

 In this document the door control module is designated as follows on the models
215 - Left/right left door control module
220 - Left/right front door control module
as left front door control module (N69/1), right front (N69/2).

Function requirements:

 No overvoltage or undervoltage

 Term.15R or 15 ON

 Driver's door/front passenger's door open

 No button for manual seat adjustment, mirror adjustment or steering column adjustment pressed

 Normalization carried out properly

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Calling up memory and Ergo positions (driver) up to 31.5.01

When calling up the memory function or Ergo function by pressing the memory 1 switch (N69/1s6), memory 2 switch (N69/1s7) or ERGONOMICS switch (N69/1s8) in the left door control module (N69/1) the positions stored in the relevant control modules are actuated:

 Inside rearview mirror

 Front passenger's exterior mirror

 Steering column

 Driver seat

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The left front door control module (N69/1) recognizes that a switch is pressed and sends the following message via the CAN: "Left front memory - Assume position 1/2/Ergo". Memory 3 (N69/1s15), in the left front door control module (N69/1).

This message is received from the left front SAM control module (N10/6), from the overhead control panel control module (N70), from the right front door control module (N69/2) and from the left front seat adjustment control module with memory (N32/1).

Consequently these control modules, and also the left front door control module (N69/1), actuate the respective motors (see Figure), when the button is pressed further, until it is recognized via the local position recognitions that the stored positions are reached.

As of 1.6.01 the Ergo position is not used anymore, it is replaced by a further memory button

This memory location is called up by pressing the switch for memory 3 (N69/1s9) in the left front door control module (N69/1).

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Calling up memory/Ergo positions (front passenger) up to 31.5.01

When the memory feature is called up by pressing the memory 1 switch (N69/2s6), memory 2 switch (N69/2s7) ERGONOMY switch (N69/2s9) in the right front door control module (N69/2), the positions of the front passenger's seat stored in the right front seat adjustment control module with memory (N32/2) are approached. The right front door control module (N69/2) recognizes that a switch is pressed and places the following message on the CAN: "Right front memory - Assume position 1/2/Ergo". This message is received from right front seat adjustment control module with memory (N32/2) which then, when the button is pressed further, actuates the

motors of the right front seat adjustment motor group with memory (M28) until it is recognized via local position recognitions that the stored positions are reached.

As of 1.6.01 the Ergo position is not used anymore, it is replaced by a further memory button.

This memory location is called up by pressing the memory 3 switch (N69/2s15) in the right front control module (N69/2).

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Calling up memory positions (rear)

(On model 220 with electrically adjustable individual rear seats with memory)

left rear side

When the memory feature is called up by pressing the memory 1 switch (N69/3s3) or memory 2 switch (N69/4s4) or memory 3 switch(N69/3s5) in the driver's side door control module (N69/3) the positions of the left rear seat stored in the rear seats control module (N25/6) are approached.

The following are used for the right rear side

memory 1 switch (N69/4s3) or memory 2 switch (N69/3s4) or memory 3 switch (N69/4s5) in the right rear door control module (N69/4).

The respective door control module recognizes that a switch is pressed and places the following message on the CAN "Left and right rear memory - Assume position 1/2/3".

This message is received by the rear seats control module (N25/6) which then, if the button is pressed further, actuates the respective adjustment motors until it is recognized via local position recognitions that the stored positions are reached.