gf8879p2002fa

Fold left/right outside mirror, function

Type gf · topic 88.79 · version 0100 · 2008-03-11

Applies to: MODEL 203.7 as of model year 09 /YoM 08 model refinement package with CODE (500) Folding left/right outside mirrors

Where it sits

Function group 3 Body › 88 Detachable body components, exterior flaps › 88.79 Exterior mirrors - electrical system — Series 203 (models 7**)

GF88.79-P-2002FA

Fold left/right outside mirror, function

22.2.08

MODEL 203.7
as of model year 09 /YoM 08 model refinement package
with CODE (500) Folding left/right outside mirrors

Function requirements, general

C. 15R On

No overvoltage or undervoltage

The circuit status is transmitted by the EIS [EZS] control unit (N73) via the interior CAN.

Folding left/right outside mirror function sequence, general

The outside mirror housings can be folded in and out electrically in pairs.

If c. 15R is switched off during an active housing adjustment, the housing adjustment is nevertheless completed.

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If a new housing adjustment request is recognized during an active housing adjustment, the housing adjustment is directly switched to the opposite direction.

The actuation duration of the outside mirror actuation depends on the outside temperature.

Actuation is accomplished at temperatures of T > 5 °C with
t = 5 s, between T= 5 °C and -8 °C with t = 6 s and

at T -8 °C with t = 8 s.

The fold left/right outside mirror function comprises the following subfunctions:

Manual folding in function sequence

Manual folding out function sequence

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Additional function requirements for manually folding in

Last actuation was folding out

Vehicle speed v < 100 km/h

Manual folding in function sequence

The mirror housings can be folded to the garage position by momentarily actuating the outside mirror fold-in switch (S1s2) in the light switch module (S1).

The adjustment request from the outside mirror fold-in switch is read in by the front SAM control unit with fuse and relay module (N10/1). It relays the adjustment request to the left front door control unit (N69/1) right front door control unit (N69/2) via the interior CAN.

The left front door control unit then actuates the mirror fold-in motor (M21/1m3) in the left electrically adjustable and heated outside mirror (M21/1) and the right front door control unit actuates the mirror fold-out motor (M21/2m3) in the right electrically adjustable and heated outside mirror (M21/2).

Additional function requirements for manual folding out

Last actuation was folding in

Manual folding out function sequence

The mirror housings can be folded to the driving position by momentarily actuating the outside mirror fold-in switch (S1s3) in the light switch module.

The adjustment request from the outside mirror fold-out switch is read in by the front SAM control unit. It relays the adjustment request to the left front door control unit right front door control unit via the interior CAN.

The left front door control unit then actuates the power folding mirrors motor in the left electrically adjustable and heated outside mirror and the right front door control unit actuates the power folding mirrors motor in the right electrically adjustable and heated outside mirror.

Electrical function schematic for folding outside mirrors

PE88.79-P-2057-97FA

Front SAM control unit with fuse and relay module, component description

N10/1

GF54.21-P-6070FA

Left front door control unit, component description

N69/1

GF72.29-P-4141FA

Right front door control unit, component description

N69/2

GF72.29-P-4142FA

Component description for the EZS control unit

N73

GF80.57-P-6003FA

Outside mirror, component description

M21/1, M21/2

GF88.79-P-4003FA

Light switch module, component description

S1

GF54.25-P-4210FA

Referenced documents