Wiring diagram for front signal acquisition and actuation module (SAM) control unit - PE54.21-U-2114-99MAB

Code:	Designation:	Position:
B22/10	Right rear level sensor	72 M
B22/9	Right front level sensor	74 M
E1	Left front lamp unit	18 M
E1	Left front lamp unit	26 M
E1	Left front lamp unit	37 M
E1	Left front lamp unit	56 M
E1	Left front lamp unit	69 M
E1e10	Left bi-xenon lamp with integral ignition module	56 M
E1e2	Left low beam	16 M
E1e2	Left low beam	58 M
E1l1	Left high beam solenoid	39 M
E1l1	Left high beam solenoid	57 M
E1m1	Left headlamp range adjustment motor	37 M
E1m1	Left headlamp range adjustment motor	52 M
E1m2	Left dynamic curve illumination motor	38 M
E1m2	Left dynamic curve illumination motor	53 M
E1n2	Xenon headlamp ignition module	36 M
E1n3	HRA [LWR] power module	36 M
E1n3	HRA [LWR] power module	54 M
E1n4	Xenon headlamp supply module	37 M
E2	Right front lamp unit	23 M
E2	Right front lamp unit	27 M
E2	Right front lamp unit	46 M
E2	Right front lamp unit	66 M
E2e10	Right bi-xenon lamp with integral ignition module	66 M
E2e2	Right low beam	24 M
E2e2	Right low beam	47 M
E2e2	Right low beam	68 M
E2l1	Right high beam solenoid	46 M
E2l1	Right high beam solenoid	67 M
E2m1	Right headlamp range adjustment motor	45 M
E2m1	Right headlamp range adjustment motor	63 M
E2m2	Right dynamic curve illumination motor	45 M
E2m2	Right dynamic curve illumination motor	63 M
E2m3	Right light distribution cylinder motor	65 M
E2n2	Xenon headlamp ignition module	43 M
E2n3	HRA [LWR] power module	44 M
E2n4	Xenon headlamp supply module	44 M
F4	Load compartment fuse and relay box	13 M
F4f54	Fuse 54	12 M
F58	Engine compartment fuse and relay box	4 M
F58	Engine compartment fuse and relay box	20 M
F58	Engine compartment fuse and relay box	41 M
F58	Engine compartment fuse and relay box	61 M
F58f112	Fuse 112	40 M
F58f112	Fuse 112	59 M
G1/7	Additional battery	1 M
N10	Front SAM control unit	4 B
N10	Front SAM control unit	12 B
N10	Front SAM control unit	20 B
N10	Front SAM control unit	28 B
N10	Front SAM control unit	36 B
N10	Front SAM control unit	44 B
N10	Front SAM control unit	52 B
N10	Front SAM control unit	59 B
N51	AIRMATIC control unit	8 M
N71	Headlamp range adjustment control unit	33 M
S1	Rotary light switch	30 M
U151	Valid for engine 113	2 D
U151	Valid for engine 113	16 D
U151	Valid for engine 113	18 D
U501	Valid for xenon headlamps	32 E
U501	Valid for xenon headlamps	52 E
U502	Valid for AIRMATIC	7 D
U679	Valid for version without xenon headlamps	15 B
U681	Valid for all except M113	16 E
U681	Valid for all except M113	18 E
U758	Valid for steel suspension	71 F
U974	Not valid for full hybrid drive	15 B
W2	Ground (right front, at lamp unit)	23 J
W2	Ground (right front, at lamp unit)	45 J
W2	Ground (right front, at lamp unit)	66 J
W9	Ground (left front, at lamp unit)	15 J
W9	Ground (left front, at lamp unit)	25 J
W9	Ground (left front, at lamp unit)	36 J
W9	Ground (left front, at lamp unit)	38 J
W9	Ground (left front, at lamp unit)	52 J
X18	Interior/cockpit connector	29 F
X25/2	Engine compartment/interior compartment connector	3 F
X25/2	Engine compartment/interior compartment connector	16 F
X25/2	Engine compartment/interior compartment connector	18 F
X25/2	Engine compartment/interior compartment connector	25 F
X25/2	Engine compartment/interior compartment connector	36 F
X25/2	Engine compartment/interior compartment connector	53 F
X25/2	Engine compartment/interior compartment connector	57 F
X25/2	Engine compartment/interior compartment connector	67 J
X25/2	Engine compartment/interior compartment connector	71 J
X30/19	Passenger-side voltage distributor (CAN C) connector	49 M
Z35/14	CAN-C low engine compartment connector sleeve	53 H
Z35/15	CAN-C high engine compartment connector sleeve	55 J
Z36/12	Headlamp range adjustment (HRA [LWR]) control bus connector sleeve	36 J
Z36/14	Static headlamp range adjustment signal connector sleeve	26 J
Z56/16	Level sensor ground engine compartment solder point	73 J
Z56/17	Level sensor supply engine compartment solder point	75 J
Z56/9	Left engine compartment connector sleeve (circuit 56B)	16 J
Z57/15	Right engine compartment connector sleeve (circuit 56B)	24 F

Fig 1: Front Signal Acquisition And Actuation Module Control Unit Wiring Diagram (1 Of 5)

Courtesy of MERCEDES-BENZ USA

Fig 2: Front Signal Acquisition And Actuation Module Control Unit Wiring Diagram (2 Of 5)

Courtesy of MERCEDES-BENZ USA

Fig 3: Front Signal Acquisition And Actuation Module Control Unit Wiring Diagram (3 Of 5)

Courtesy of MERCEDES-BENZ USA

Fig 4: Front Signal Acquisition And Actuation Module Control Unit Wiring Diagram (4 Of 5)

Courtesy of MERCEDES-BENZ USA

Fig 5: Front Signal Acquisition And Actuation Module Control Unit Wiring Diagram (5 Of 5)

Courtesy of MERCEDES-BENZ USA