Legend, wiring diagram for seat heater and seat ventilation control unit

PE91.30-P-2102-60DA

Legend, wiring diagram for seat heater and seat ventilation control unit

Model 211
with CODE (873) Left and right front seat heaters
with CODE (872) Electrically heated left and right rear seats
with CODE (401) Front comfort seats, incl. seat heating and seat ventilation
control unit N2/7

Code

Designation

Coordinates

A0

Color code key

64L

F34

Interior fuse box

17L

F34

Interior fuse box

35L

F34f36

Fuse 36

16K

F34f40

Fuse 40

35K

M18/9

Left front seat cushion ventilation motor group

2L

M18/10

Left front seat backrest ventilation motor group

3L

M18/11

Right front seat cushion ventilation motor group

14L

M18/12

Right front seat backrest ventilation motor group

15L

N10/2

Rear SAM control unit with fuse and relay module

51L

N25/7

HS [SIH] and seat ventilation control unit

7A

N25/7

HS [SIH] and seat ventilation control unit

12A

N25/7

HS [SIH] and seat ventilation control unit

20A

N25/7

HS [SIH] and seat ventilation control unit

28A

N25/7

HS [SIH] and seat ventilation control unit

36A

N25/7

HS [SIH] and seat ventilation control unit

46A

N25/7

HS [SIH] and seat ventilation control unit

55L

N25/7x1

Heated seat connector

49C

N29/5

Left front seat ventilation blower regulator

6L

N29/6

Right front seat ventilation blower regulator

11L

N80

Steering column module

37L

R13/1

Left front seat heated cushion

28L

R13/2

Left front backrest heated cushion

27L

R13/3

Right front seat heated cushion

22L

R13/4

Right front backrest heated cushion

25L

R13/5

Left rear seat heated cushion

45L

R13/5x1

Left rear seat heated cushion connector

44K

R13/5x2

Left rear seat heated cushion connector

46G

R13/6

Left rear backrest heated cushion

48L

R13/6x1

Left rear backrest heated cushion connector

47K

R13/7

Right rear seat heated cushion

43L

R13/7x1

Right rear seat heated cushion connector

43K

R13/7x2

Right rear seat heated cushion connector

44G

R13/8

Right rear backrest heated cushion

40L

R13/8x1

Right rear backrest heated cushion connector

40K

R13/9

Left rear side piece heated cushion

49L

R13/9x1

Left rear seat cushion side piece heater element connector

48K

R13/10

Right rear side piece heated cushion

42L

R13/10x1

Right rear seat cushion side piece heater element connector

41K

U12

Valid for left-hand drive vehicles

1A

U12

Valid for left-hand drive vehicles

21A

U13

Valid for right-hand drive vehicles

1B

U13

Valid for right-hand drive vehicles

21A

U647

Valid for seat ventilation

1A

U744

Valid for steering wheel heater

34D

U752

Valid for rear seat heater

39D

U764

Valid for through-loading feature

44E

U789

Valid for non-folding front passenger seat

21H

U798

When exchanging N25/7 in vehicles up to 05/04, an adapter wiring harness must be used. The old coupling 2 at N25/7 becomes N25/7x1

49A

W15/1

Ground (right footwell)

38G

W15/2

Ground (left footwell)

26D

W15/2

Ground (left footwell)

28D

W15/2

Ground (left footwell)

40G

W15/2

Ground (left footwell)

44D

W15/2

Ground (left footwell)

47G

X4/45

Steering wheel heater connector

36G

X30/7

Left voltage distributor (CAN) connector

19L

X55/3

Driver seat connector block

7H

X55/3

Driver seat connector block

24H

X55/3

Driver seat connector block

31G

X55/4

Front passenger seat connector block

9H

X55/4

Front passenger seat connector block

22H

X55/4

Front passenger seat connector block

28G

X55/11

Left seat cushion ventilation motor connector

1H

X55/12

Right seat cushion ventilation motor connector

13H

X55/13

Left seat backrest ventilation motor connector

3H

X55/14

Right seat backrest ventilation motor connector

15H