Mercedes C-Class

W203 since 2000 of release

Repair and operation of the car

Schemes of electric equipment

Models of 2000 of release

Codes of designation of color of isolation of an electrical wiring

Code	Color
BLK	Black.
BLU	Blue.
BRN	Brown.
GRN	Green.
GRY	Gray.
NCA	Any.
OR	Or (GRN OR VIO = Green or violet).
ORG	Orange.
PNK	Pink.
PPL	Purple.
RED	Red.
TAN	Golden.
VIO	Violet.
WHT	White.
YEL	Yellow.

Provisions of the switch of a tempostat

MEMORY RECALL	Call of data from memory.
DECEL/SET	Деселерация / Installation.
ACCEL/SET	Acceleration/installation.
OFF	Off.

Abbreviations of signals/designation of plugs and contours

-	Minus.
+	Plus.
12VCD	Tension of the battery or regulator of tension at the working engine.
15	The switched power supply from the battery (moves in provisions 2 and 3).
15g	The switched power supply from the battery (it is protected by a safety lock).
15R	The switched power supply from the battery (moves in provisions 1, 2 and 3).
15u	The switched power supply from the battery (it is not protected by a safety lock).
15X	The switched power supply from the battery (moves in situation 2).
15Z	The switched power supply from the battery (moves in provisions 2 and 3).
15C	The switched power supply from the battery (moves before extraction of a key).
15X	The switched power supply from the battery (moves in situation 2).
30	Not powered off the battery.
30z	Plug 30, 1 entrance signal [Terminal 30, 1st input].
30Z	The switched battery tension (moves in provisions 2 and 3).
30a	Not disconnected battery tension.
30A	Not disconnected battery tension (the party of "A").
30B	Not disconnected battery tension (the party "In").
30E	Not disconnected battery tension for electronics.
31	Grounding.
31b	The switched connection to the case.
31e	Grounding for electronics.
49	Entrance signal of indexes of turns.
49	Breaker signal.
49a	Output signal of indexes of turns.
49L	Left index of turns.
49R	Right index of turns.
49a	Signal of the pulse breaker.
50	Signal of the traction relay of a starter.
53	Entrance signal (+) screen wiper drive electric motor.
53	Low-speed mode of functioning of screen wipers.
53b	The shunting screen wiper drive electric motor winding.
53b	High-speed mode of functioning of screen wipers.
54	Chain of stoplights.
55	Fog lamps.
56	Headlights.
56a	Chain of driving beam.
56b	Chain of passing beam.
58	Chain of back marker/parking lights, illuminations of devices and registration plate.
58d	Adjustable illumination of devices.
58k	Illumination of devices (not processed).
58L	Left parking сгонь
58R	Right parking fire.
61	Control lamp of the generator.
61e	Working signal of the generator.
81	Signal of the reverse gear.
81a	Signal of the reverse gear (after switching of transmission).
85	Winding conclusion on (-) or the case.
85EDC	Signal of management of the relay, electronic control of the diesel engine.
85F	Management of the relay of a horn.
85LP	Management of the relay of the air pump.
86	Conclusion of the beginning of a winding.
86KP	Management of the relay of the fuel pump.
87	Entrance signal.
875A	Power supply of the additional equipment.
87a	First output signal (contact party of NC).
87ABS	ABS food.
87b	Second output signal.
87c	Third output signal.
87EGAS	Supply voltage of the electronic accelerator pedal (EA).
87GES	Battery tension (it is protected by a safety lock).
87LP	Supply voltage of the air pump.
87ME1	87 control units 1.
87ME2	87 control units 2.
87MOTR	Supply voltage of the control unit of system of injection.
87UG	Relay exit (it is not protected by a safety lock).
87Z	Relay exit (it is protected by a safety lock).
AB	Safety cushion.
AB F-	Driver's safety cushion(s).
AB F+	Driver's safety cushion (+).
AB1, BF	Safety cushion of 1 forward passenger.
AB1, FA	Driver's safety cushion 1.
AB2, BF	Safety cushion 2 forward passengers.
AB2, FA	Driver's safety cushion.
ACSR	Registrar of installation of a children's seat.
AL (-)	Grounding of a lamp of illumination of an exit.
AL (+)	Exit illumination lamp food.
AM	Amplitude modulation (DV/SV/KV).
AM/FM	Amplitude/frequency modulation (DV/SV/KV/VHF).
Ant.	Antenna.
B	Video signal, blue.
B +	The output tension of the generator (it is activated at the started engine).
BBV	Indicator of wear of brake shoes.
BFS	Sensor switch of level of brake fluid.
BL (-)	Stoplights (-).
BL (+)	Stoplights (+).
BLS	Normally opened contact of the sensor switch of stoplights.
BS	Normally closed contact of the sensor switch of stoplights.
CL	Uniform lock.
Crash	Collision signal.
CTRL	Management.
D +	Working signal of the generator (as 61).
D2B IN	Entrance signal of the tire D2.
D2B OUT	Output signal of the tire D2.
Data -	"Minus" consecutive interface.
Data +	"Plus" consecutive interface.
DF HL	Frequency of rotation of the left back wheel.
DF HL	Sensor of the left back wheel of VSS.
DF HR	Frequency вращинея right back wheel.
DF VL	Frequency of rotation of the left forward wheel.
DF VR	Frequency of rotation of the right forward wheel.
DF VR	Sensor of the right back wheel of VSS.
DFA	Output signal of speed.
DFA HL	Exit of a signal of the left back wheel of VSS.

DG + 5V	+ 5B of pressure sensor.
DG Sig.	Pressure sensor signal.
DGM	Grounding of the sensor of pressure.
FH	Window regulator.
FH H	Signal "Up" window regulator.
FH HL	Window regulator of the left back door.
FH HR	Window regulator of the right back door.
FH T	Signal "Down" window regulator.
FH VL	Window regulator of the left forward door.
FH VR	Window regulator of the right forward door.
FM	Frequency modulation (VHF).
FSB	Parking brake.
G	Video signal, green.
GES	Signal of the sensor of the speed (VSS).
GND, GRND	Shielding, case (grounding).
GS	Emergency natyazhitel.
GS, BF	Natyazhitel of a seat belt of a front passenger seat.
GS, FA	Natyazhitel of a seat belt of a driver's seat.
GS, HL	Natyazhitel of a seat belt of the left back seat.
GS, HR	Natyazhitel of a seat belt of the right back seat.
H (-)	Grounding of the sensor of Hall.
H (+)	Power supply of the sensor of Hall.
H 1 Sig.	Signal of the 1st sensor of Hall.
H 2 Sig.	Signal of the 2nd sensor of Hall.
H Sig.1	Signal of 1 sensor of Hall.
H Sig.2	Signal 2 sensors of Hall.
HAR 1	Signal 1. Right back half shaft.
HAR 2	Signal 2. Right back half shaft.
HAR V	Supply voltage. Right back half shaft.
HH (-)	Grounding of the back sensor of Hall.
HH (+)	Supply voltage of the back sensor of Hall.
HHS	The warmed back glass.
HKL	The warming overlay of a seatback.
HKS	The warming overlay of a pillow of a seat.
HL	Antenna of the left back wheel.
HR	Antenna of the right back wheel.
HTR (-)	"Minus" probe heater.
HTR (+)	"Plus" probe heater.
HV (-)	Hall's sensor, grounding of adjustment of height.
HV (+)	Hall's sensor, supply voltage of adjustment of height.
IR (-)	"Minus" infrared receiver.
IR (+)	"Plus" receiver IK.
IR-Daten	Data of IK of the receiver.
K	Line K of diagnostics.
K (+)	Hall's sensor, supply voltage of adjustment of head restraints.
KI-SI	Additional lock of back window regulators.
LL L	The left lamp for reading.
LL R	The right lamp for reading.
LOC	"Plus" valve of management of level.
LOCK	Blocking.
Lsp. -	Grounding of a loudspeaker.
Lsp. +	Loudspeaker supply voltage.
MHH (-)	Grounding of an electric motor of lifting of a back seat.
MHH (+)	Supply voltage of an electric motor of lifting of a back seat.
MHV (-)	Grounding of an electric motor of adjustment of height.
MHV (+)	Supply voltage of an electric motor of adjustment of height.
Mikr. -	Grounding of the microphone.
Mikr. +	Microphone supply voltage.
MK (-)	Grounding of an electric motor of adjustment of height of head restraints.
MSKT (-)	Grounding of an electric motor of lowering of a pillow of a seat.
MSKT (+)	Supply voltage of an electric motor of lowering of a pillow of a seat.
Mute	Contour of shutdown of a sound.
MVZ (-)	Grounding of an electric motor of the drive of adjustment in the horizontal direction (back and forth).
MVZ (+)	Adjustment drive electric motor supply voltage in the horizontal direction (back and forth).
NF	Low Frequency (LF).
NF-L	Left LF loudspeaker.
NF-R	Right LF loudspeaker.
NHL	Left back valve of management of level.
NHRNSP	Right back valve of management of level.
NSL	Back foggy lamp.
NVL	Left forward valve of management of level.
NVR	Right forward valve of management of level.
O2S (-)	"Minus" lambda probe.
O2S (+)	Plus lambda probe.
P/N	Parking/neutral.
P-Sig.	Signal of position "P" of the lever of the selector.
PWR	Food.
R	Video signal, red.
R DOME	Back saloon lamp.
R/P-S (-)	"Plus" electromagnet of blocking of R/Ruble.
R/P-S (+)	"Minus" electromagnet of blocking of R/Ruble.
R50	Signal of the traction relay (after blocking of a starter).
RAS	Signal 2. Left back half shaft.
RAS 1	Signal 1. Left back half shaft.
RBCAN H	High-level communication signal of the tire of the CAN network controller.
RBCAN L	Low-level communication signal of the tire of the CAN network controller.
RF ERK	—
RFL	Backing fire.
RR	Antenna of a spare wheel.
RTR	Drive of a remote otpuskaniye of a latch of the lock of a trunk lid.
RV	The operating AT valve.
S10	Sensor 10, back.
S2	Sensor 1, forward.
S3	Sensor 2, forward.
S4	Sensor 4, forward.
S5	Sensor 5, forward.
S6	Sensor 6, forward.
S7	Sensor 7, back.
S8	Sensor 8, back.
S9	Sensor 9, back.
SA 1	Blackout of a mirror 1.
SA 2	Blackout of a mirror 2.
SB, HL	Left back side safety cushion.
SB, HR	Right back side safety cushion.
SB, VL	Left forward side safety cushion.
SB, VR	Right forward side safety cushion.
SBS	Sensor of side and window safety cushions.
SH (-)	"Minus" heating of mirrors.
SH (+)	"Plus" heating of mirrors.
Sig.	Signal.
SKT (-)	Hall's sensor, grounding of lowering of a pillow of a seat.
SKT (+)	Hall's sensor, supply voltage of lowering of a pillow of a seat.
SP1M	Grounding of a potentiometer of nominal rate 1.
SP1S	Toddler of a potentiometer of nominal rate 1.
SP2M	Grounding of a potentiometer of nominal rate 2.
SP2S	Toddler of a potentiometer of nominal rate 2.
SR	The shifted / folding top.
Start	Plug 50, otpuskaniye.
SV	Valve of switching of AT.
SV (-)	Grounding of forward sensors.
SV (+)	Supply voltage of forward sensors.
SYNC	Synchronization signal.
TNA	Output signal of turns of the electric motor/engine.
TV1	Video channel 1.
TV2	Video channel 2.
TV3	Video channel 3.
TV4	Video channel 4.
U	Supply voltage.
USP1	Supply voltage of a potentiometer of 1 nominal rate.
USP2	Potentiometer supply voltage 2 nominal rates.
V (-)	The valve (-).
VAL 1	Left forward half shaft 1.
VAL 2	Left forward half shaft 2.
VAL V	Supply voltage. Left forward half shaft.
VAR 1	Right forward half shaft 1.
VAR 2	Right forward half shaft 2.
VAR U	Supply voltage. Right forward half shaft.
VFE -	"Minus" power supply of the DTR sensor.
VFE +	"Plus" power supply of the DTR sensor.
VL	Antenna of the left forward wheel.
VR	Antenna of the right forward wheel.
VSS VL	Signal of speed of the left forward wheel.
VSS VR	Signal of speed of the right forward wheel.
VZ (-)	Grounding of the sensor of Hall.
VZ (+)	Supply voltage of the sensor of Hall.
W H (-)	Grounding of the forward alarm equipment.
W H (+)	Supply voltage of the forward alarm equipment.
W H (Data)	Signal of the forward alarm equipment.
W V (-)	Grounding of the back alarm equipment.
W V (+)	Supply voltage of the back alarm equipment.
W V (Data)	Signal of the back alarm equipment.
Wake up	Starting signal of the tire D2.
WB, L	Left window safety cushion.
WB, R	Right window safety cushion.
ZF	Average frequency.
ZF-Ant.	Antenna of average frequencies.
ZZH	Door closer.
ZZH-V	Valve of operational development of a door.
	Designates number of the electrical wiring connected to the corresponding terminal block or the contact socket.
*	The asterisk designates the socket, not all wires of which are shown.