Legend for wiring diagram of electronic traction support (ETS)

PE42.35-U-2000-60C

Legend for wiring diagram of electronic traction support (ETS)

MODEL 163 as of 1.11.99
with CODE (491) U.S. version
with CODE (212a) Electronic traction support (ETS)

Item

Designation

Coordinates

A1

Instrument cluster

78A

A1e6

Brake pad wear indicator lamp

77A

A1e7

Brake fluid, parking brake and brake distribution warning lamp

78A

A1e17

ABS MIL

78A

A1e35

ETS MIL

79A

A1e36

ETS warning lamp

79A

A1e47

BAS/ESP malfunction indicator lamp

80A

A2

Radio

71E

A7/3

Traction system hydraulic unit

15E

A7/3m1

High pressure and return pump

12F

A7/3y6

Left front axle solenoid valve (hold)

18F

A7/3y7

Left front axle solenoid valve (release)

18E

A7/3y8

Right front axle solenoid valve (hold)

18E

A7/3y9

Right front axle solenoid valve (release)

17F

A7/3y10

Left rear axle solenoid valve (hold)

16F

A7/3y11

Left rear axle solenoid valve (release)

17E

A7/3y12

Right rear axle solenoid valve (hold)

15F

A7/3y13

Right rear axle solenoid valve (release)

16E

A7/3y24

Pressure circuit 1 switchover solenoid valve

14F

A7/3y25

Pressure circuit 2 switchover solenoid valve

15F

A7/3y26

Pressure circuit 1 inlet solenoid valve

14E

A7/3y27

Pressure circuit 2 inlet solenoid valve

15E

A7/7

BAS brake booster

25E
27E

A7/7b1

BAS diaphragm travel sensor

25E

A7/7s1

BAS release switch

27F

A7/7y1

BAS solenoid valve

28E

B34/1

ESP brake pressure sensor 1

22E

B34/2

ESP brake pressure sensor 2

24E

B43

Lateral acceleration sensor

54F

B45

ESP yaw rate sensor

53F

F1

Fuse and relay module

1B
11C
21C
31C
42C
52C
62C
70C

F1f13

Fuse 13

47C

F1f15

Fuse 15

64C

F1f22

Fuse 22

44C

F1f27

Fuse 27

7C

F1k6

ESP stop lamp suppression relay

61C

F1k12

Circuit 15 relay

5C

F1k25

High-pressure/return pump relay module

8C

G1

Battery

6G

L6/1

Left front wheel speed sensor

43D

L6/1x1

Wheel speed sensor connector

42H

L6/2

Right front wheel speed sensor

41K

L6/2x1

Wheel speed sensor connector

41G

L6/3

Left rear wheel speed sensor

74B

L6/3x1

Wheel speed sensor connector

73F

L6/4

Right rear wheel speed sensor

75B

L6/4x1

Wheel speed sensor connector

75F

N10

All-activity module

1A
11A
21A
31A
42A
52A
62A
70A

N15/5

Electronic selector lever module control module

56K

N47

Traction systems control module

9L
19L
29L
40L
50L
60L
70L
78L

N49

Steering angle sensor

47K

N71

Headlamp range adjustment control module

68H

S2

Starter switch

3L

S9

Stop lamp switch (4-pin)

59K

S10/1

Left front brake pad contact sensor

31F
34F

S10/2

Right front brake pad contact sensor

35F

S10/3

Left rear brake pad wear sensor

32F
37F

S10/4

Right rear brake pad contact sensor

36F

S11

Brake fluid indicator switch

30G

S12

Parking brake indicator switch

77H

S76/6

ESP OFF switch

51K

U150

Valid for engine 112

31L

U151

Valid for engine 113

34L

U291

Valid for ML55 AMG

19D

W0

Ground location not specified

32D
33D
34D
35D
36D
37D

W2

Ground (at right headlamp unit)

30K

W9

Ground (at left headlamp unit)

7E
12E

W16/4

Ground (output ground - component compartment - right)

6L

W29/2

Ground (right A-pillar)

77C

X4/37

Terminal block (circuit 30)

4F

X11/4

Data link connector

67I

X12/3

Terminal block (circuit 30, 15, 31, 3-pin)

4E

X18

Interior and taillamp harness connector, cockpit

61I
77I
78E

X18/31

Left engine compartment/right engine compartment connector

21I
34H

X18/33

SPS [PML] connector

19I

X88/17

Rear brake pad contact sensor connector

32H
37I

Y10

SPS [PML] solenoid valve

20E

Z50/1

Cockpit connector sleeve (circuit 58d)

51E

Z50/3

Cockpit connector sleeve (circuit 31, I left)

48E
77E

Z50/4

Cockpit connector sleeve (circuit 31, II right)

51E
77D

Z50/5

Cockpit circuit 30 connector sleeve

3G

Z50/9

Cockpit connector sleeve (circuit 15 II)

2G

Z50/11

CAN-L cockpit connector sleeve

79D

Z50/12

CAN-H cockpit connector sleeve

78D

Z51/1

Interior connector sleeve (CAN-High 1)

78G

Z51/2

Interior connector sleeve (CAN-Low 1)

79G

Z51/3

Interior connector sleeve (CAN-High 2)

78H

Z51/4

Interior connector sleeve (CAN-Low 2)

79H

Z51/5

Interior connector sleeve (circuit 15)

44G

Z51/11

Cockpit connector sleeve, diagnosis

65G

Z52/6

Interior connector sleeve (circuit 54)

64I

Z52/14

Circuit sleeve in interior, brake wear indicator

36H

Z56/1

Left engine compartment connector sleeve, circuit 31 (1)

6G
11G

Z56/5

Connector sleeve in left of engine compartment, circuit 31 (2)

6H

Z56/6

Left engine compartment connector sleeve, brake wear indicator

32I
34I

Z57/1

Right engine compartment connector sleeve, circuit 31 (1)

30I

Z57/3

Right engine compartment connector sleeve, circuit 31 (2)

30H