Mercedes·Slk350 171 456·2012 Mercedes SLK350 (171.456)·Wiring
Wiring diagram

2012 Mercedes SLK350 (171.456) — power distribution

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Power distribution

1 2 2 1 2 1 2 1 1 2 2 1 1 2 1 2 A A T S K 100A 10A 100A N/A 100A C 50A N/A 150A E F 40A 30A 30A D B 25A 7.5A 150A 100A 100A FRONT PREFUSE BOX REAR SAM CONTROL MODULE W/ FUSE & RELAY MODULE BATTERY SENSOR ON-BOARD ELECTRICAL SYSTEM BATTERY FRONT PREFUSE BOX ALTERNATOR STARTER C1 1 2 3B MR3 MR4 1 C1 C30 C12S A E I1 3A C2 2 1 C1 3 MR7 MR5 MR6 MR3 MRG2 C3I 2 MR4 B1 MR2 1 I3 IG1 MRG1 10 C3I 8 MR8 MR1 10 C8D 5 C12I 3 I2 2 1 C30G I4 C9I 49 50 35 47 2 1 3 4 BRN BLK/RED RED RED RED BLK BLK RED RED RED RED RED RED BLK BLK RED RED BLK BRN NCA NCA RED RED RED RED RED RED RED RED RED RED BLK RED BLK BLK BLK RED RED/VIO RED BRN BRN/WHT RED VIO GRN RED RED RED RED RED RED RED/VIO RED/BLU RED/BLK RED RED RED RED BRN/WHT RED/VIO BRN DECOUPLING RELAY QUIESCENT CURRENT CUTOUT RELAY RES FUSE 162 RES FUSE 154 FUSE 400 FUSE 163 FUSE 151 FUSE 161 FUSE 154 RES FUSE 155 RES FUSE 156 FUSE 46 FUSE 61 FUSE 39 FUSE 41 PYRO FUSE FUSE 152 FUSE 88 FUSE 158 FUSE 164 FUSE 159 RES FUSE 160 RES FUSE 157 FUSE 153 RES FUSE 153 ECO START/STOP FUNCTION ADDITIONAL BATTERY RELAY ADDITIONAL BATTERY CIRCUIT FUSE 30 ADDITIONAL BATTERY (RIGHT FRONT OF ENGINE COMPT) (RIGHT FRONT WHEELWELL) (FRONT OF TRUNK) (RIGHT FRONT OF ENGINE COMPT) (RIGHT REAR INTERIOR) (CENTER REAR OF INTERIOR) (LEFT REAR OF ENGINE COMPT) (NOT USED) (NOT USED) (NOT USED) (IF EQUIPPED) (IF EQUIPPED) (NOT USED) (NOT USED) (NOT USED) W/O ECO START/STOP FUNCTION W/ ECO START/STOP FUNCTION W16/4 W32/2 W10/4 TO FUSE 152 (DIAGRAM 1 OF 5) COMBUSTION ENGINE & A/C W/ INTEGRATED CONTROL FAN MOTOR TO FRONT SAM CONTROL MODULE W/ FUSE & RELAY MODULE (DIAGRAM 4 OF 5) TO FRONT SAM CONTROL MODULE W/ FUSE & RELAY MODULE (DIAGRAM 5 OF 5) TO CIRCUIT 15 RELAY (DIAGRAM 2 OF 5) TO FUSE 89 (DIAGRAM 2 OF 5) SUPPLEMENTAL RESTRAINTS SYSTEM CONTROL UNIT RIGHT DOOR CONTROL UNIT LEFT DOOR CONTROL UNIT INTERIOR PROTECTION SENSOR TO FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE (DIAGRAM 4 0F 5) ALARM SIREN AIRSCARF CONTROL UNIT FROM FUSE 155 (DIAGRAM 1 OF 5) SUPPLEMENTAL RESTRAINTS SYSTEM CONTROL UNIT VALID ROOF CONTROL CONTROL UNIT TO FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE (DIAGRAM 4 OF 5) A/C HOUSING TO FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE (DIAGRAM 5 OF 5) TO FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE (DIAGRAM 4 0F 5)
30A 15A 30A 25A 30A 30A R H C G G B 5A 7.5A 7.5A 7.5A 25A 15A 5A REAR SAM CONTROL UNIT W/ FUSE & RELAY MODULE SEAT ADJUSTMENT RELAY REAR SAM CONTROL UNIT W/ FUSE & RELAY MODULE FUEL PUMP RELAY 3 C14I 3 S90 2 C15H 4 C12I 3 2 S89 C15H 5 4 C11T 6 6 7 C3I C3I 13 1 C3I 1 6 C13A 5 C12I 7 C12I 6 RED/BLU RED/WHT RED/BLK RED/BLK RED/WHT RED/YEL RED/VIO RED/YEL RED/VIO RED/WHT RED/BLK RED BLK CIRCUIT 15 RELAY RES FUSE 48 RES FUSE 58 RES FUSE 57 FUSE 90 FUSE 62 FUSE 64 FUSE 63 FUSE 59 FUSE 56 RES FUSE 54 CIRCUIT 15R RELAY 1 RES FUSE 86 FUSE 84 FUSE 87 FUSE 89 RES FUSE 60 FUSE 68 FUSE 42 RES FUSE 71 FUSE 37 FUSE 76 (FRONT OF TRUNK) (FRONT OF TRUNK) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (IF EQUIPPED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) (IF EQUIPPED) TO FUSE 42 (DIAGRAM 2 OF 5) FROM FUSE 41 (DIAGRAM 1 OF 5) ELECTRIC PARKING BRAKE CONTROL UNIT ELECTRIC PARKING BRAKE CONTROL UNIT DRIVER SEAT CONTROL UNIT AIRSCARF CONTROL UNIT LEFT REAR BUMPER INTELLIGENT RADAR SENSOR & RIGHT REAR BUMPER INTELLIGENT RADAR SENSOR FRONT PASSENGER SEAT CONTROL UNIT TO FUSE 85 (DIAGRAM 3 0F 5) FROM FUSE 63 (DIAGRAM 2 0F 5) FROM FUSE 46 (DIAGRAM 1 0F 5) TO FUSE 75 (DIAGRAM 3 0F 5) DIGITAL AUDIO BROADCASTING CONTROL UNIT MAGIC SKY CONTROL CONTROL UNIT SATELLITE DIGITAL AUDIO RADIO (SDAR) CONTROL UNIT DRIVER SEAT NECK-PRO HEAD RESTRAINT SOLENOID FUEL PUMP CONTROL UNIT EMERGENCY CALL SYSTEM CONTROL UNIT ELECTRIC PARKING BRAKE CONTROL UNIT FRONT PASSENGER SEAT NECK-PRO HEAD RESTRAINT SOLENOID
1 2 1 2 V 15A 20A L 7.5A 5A 10A 7.5A J J R H 30A 15A 15A 5A 5A 7.5A 40A 50A 50A 5A REAR SAM CONTROL UNIT W/ FUSE & RELAY MODULE REAR SAM CONTROL UNIT W/ FUSE & RELAY MODULE HEATED REAR WINDOW RELAY 18 C9I C14I X1 1 2 3 1 3 2 2 1 3 3 C15H 2 C14I C14I C3I 9 12 C12I 1 1 C14I C15H 1 6 C15H 4 5 7 C11T 2 1 5 6 2 C2G 1 7 C15H 4 RED/WHT BRN BRN GRY/BLU NCA NCA NCA BLK/YEL BLK/YEL BRN NCA RED NCA RED/WHT RED/ORG RED/YEL RED RED/WHT RED/BLU RED RED/VIO RED BLK/YEL RED/YEL RED/BLK RED/VIO YEL YEL/RED CIRCUIT 15R RELAY 2 RES FUSE 82 FUSE 85 FUSE 77 FUSE 67 FUSE 81 FUSE 79 FUSE 80 FUSE 78 FUSE 72 FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION CENTER CONSOLE STOWAGE COMPARTMENT SOCKET FUSE 49 FUSE 50 FUSE 51 FUSE 75 FUSE 74 FUSE 65 RES FUSE 73 RES FUSE 69 FUSE 40 RES FUSE 43 FUSE 70 (FRONT OF TRUNK) (IN CENTER CONSOLE) (IN CENTER CONSOLE) (FRONT OF TRUNK) (NOT USED) (IF EQUIPPED) (COMFORT TELEPHONY W/O COMPENSATOR) (IF EQUIPPED) W/ CIGARETTE LIGHTER W/O CIGARETTE LIGHTER (IF EQUIPPED) (IF EQUIPPED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) (IF EQUIPPED) (IF EQUIPPED) W12 W12 TO FUSE 70 (DIAGRAM 3 OF 5) FROM FUSE 86 (DIAGRAM 2 OF 5) MEDIA INTERFACE CONTROL UNIT RADAR SENSORS CONTROL UNIT (SGR) SOUND SYSTEM AMPLIFIER CONTROL UNIT MOBILE PHONE ELECTRICAL CONNECTOR CELLULAR TELEPHONE SYSTEM ANTENNA AMPLIFIER/ COMPENSATOR PARKING SYSTEM CONTROL UNIT TV DIGITAL TUNER INTERIOR LIGHTS SYSTEM FROM FUSE 67 (DIAGRAM 3 0F 5) FROM FUSE 84 (DIAGRAM 2 0F 5) TIRE PRESSURE MONITOR CONTROL UNIT RIGHT REVERSIBLE EMERGENCY TENSIONING RETRACTOR LEFT REVERSIBLE EMERGENCY TENSIONING RETRACTOR ADAPTIVE DAMPING SYSTEM CONTROL UNIT KEYLESS-GO CONTROL UNIT FROM FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE (DIAGRAM 4 OF 5) TO FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE (DIAGRAM 4 OF 5) VARIO ROOF CONTROL UNIT
V D S 15A 20A U 20A 10A L 7.5A 20A 7.5A 15A 15A 15A 15A K N Q P O O M N M 7.5A 5A 5A 30A E 40A 7.5A 5A 7.5A 7.5A 7.5A 7.5A 15A FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE FANFARE HORN RELAY STARTER CIRCUIT 50 RELAY FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE SECONDARY AIR INJECTION RELAY FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE 2 C17C 6 C7I 9 C3M 6 C4I 3 5 6 C2I C3M 7 6 C4I C7I 2 3 C10T 6 C10T 2 C19I 16 C7I 11 C11C 6 C6I 5 C7I 13 C10T 1 13 C11C 1 3 5 C1M C4I 10 12 C2I 10 C2I 11 C19I C9G 4 C5C 8 5 C2I 6 C11C 4 3 C14M 6 C1M 2 C15M 4 C16S 8S 7 8 6 C5C 5 3 4 C13D 1 1 C3M C3M 3 C14M 7 2 C6I RED/ GRY/BLU BRN BLK RED/BLU BLK VIO WHT YEL/ RED/ WHT RED RED RED/ BLK/RED BLK/WHT PNK BLU/BLK BLK/RED RED/BLU RED RED/BLK RED/BLK WHT RED/WHT BRN BLK/YEL BLK/YEL RED/VIO BLK RED/YEL RED/VIO RED BLK/RED BLK/RED RED RED RED RED RED RED/VIO RED/WHT RED/WHT BLK/RED CIRCUIT 15R RELAY FUSE 31B BACKUP RELAY CIRCUIT 15 RELAY WIPER PARK POSITION HEATER RELAY FUSE 18 FUSE 31A FUSE 4 FUSE 5 FUSE 9 FUSE 21 FUSE 10 FUSE 17 FUSE 30 FUSE 7 FUSE 6 FUSE 29 FRONT VEHICLE INTERIOR POWER OUTLET ENGINE CIRCUIT 87 RELAY FUSE 22 FUSE 23 FUSE 25 FUSE 24 FUSE 12 FUSE 16 FUSE 11 FUSE 15 FUSE 13 FUSE 32 (LEFT REAR OF ENGINE COMPT) (LEFT REAR OF ENGINE COMPT) (LEFT REAR OF ENGINE COMPT) (NOT USED) (NOT USED) (NOT USED) (W/ MANUAL HEADLAMP RANGE ADJUSTMENT) (IF EQUIPPED) (W/ ECO START/ STOP FUNCTION) (W/ GLOVE COMPARTMENT SOCKET) (NOT USED) (NOT USED) (NOT USED) (1.8L TURBO) (3.5L) 3.5L 1.8L TURBO 3.5L 1.8L TURBO (NOT USED) (NOT USED) (NOT USED) (W/ EXTERNAL NAVIGATION) (IF EQUIPPED) W12 FROM REAR SAM CONTROL UNIT W/ FUSE & RELAY MODULE (DIAGRAM 3 0F 5) TO FUSE 15 (DIAGRAM 4 0F 5) TO ENGINE CIRCUIT 87 RELAY (DIAGRAM 4 0F 5) TO CHASSIS CIRCUIT 87 RELAY (DIAGRAM 5 0F 5) GLOVE BOX LAMP EXTERIOR LIGHTS SWITCH OVERHEAD CONTROL PANEL CONTROL UNIT INTERIOR LIGHTS SYSTEM WIPER MOTOR TO REAR SAM CONTROL UNIT W/ FUSE & RELAY MODULE (DIAGRAM 3 OF 5) ELECTRIC TRANSMISSION OIL PUMP RIGHT FRONT LAMP UNIT LEFT FRONT LAMP UNIT ME-SFI (ME) CONTROL UNIT (IN CENTER CONSOLE) HEADLAMP CONTROL UNIT UPPER CONTROL PANEL CONTROL UNIT & OVERHEAD CONTROL PANEL CONTROL UNIT WIPER PARK HEATER FROM FUSE 31B (DIAGRAM 4 0F 5) TO SECONDARY AIR INJECTION RELAY (DIAGRAM 4 0F 5) ME-SFI (ME) CONTROL UNIT ME-SFI (ME) CONTROL UNIT COMBUSTION ENGINE & A/C W/ INTEGRATED CONTROL FAN MOTOR ME-SFI (ME) CONTROL UNIT ME-SFI (ME) CONTROL UNIT FROM ECO START/ STOP FUNCTION ADDITIONAL BATTERY RELAY (DIAGRAM 1 OF 5) QUANTITY CONTROL VALVE, INTAKE CAMSHAFT HALL SENSOR CYLINDER 1 IGNITION COIL, CYLINDER 2 IGNITION COIL, CYLINDER 3 IGNITION COIL, RIGHT INTAKE CAMSHAFT HALL SENSOR, RIGHT EXHAUST CAMSHAFT HALL SENSOR, RIGHT INTAKE CAMSHAFT SOLENOID & RIGHT EXHAUST CAMSHAFT SOLENOID OXYGEN SENSOR UPSTREAM OF CATALYTIC CONVERTER, FULL-LOAD OPERATION VENT LINE HEATER ELEMENT, INTAKE CAMSHAFT SOLENOID, EXHAUST CAMSHAFT SOLENOID, HEATING SYSTEM SHUTOFF VALVE, DIVERT AIR SWITCHOVER VALVE, BOOST PRESSURE CONTROL PRESSURE TRANSDUCER, COOLANT THERMOSTAT HEATING ELEMENT, OXYGEN SENSOR DOWNSTREAM OF CATALYTIC CONVERTER & EXHAUST CAMSHAFT HALL SENSOR CYLINDER 1 IGNITION COIL, CYLINDER 2 IGNITION COIL, CYLINDER 3 IGNITION COIL, CYLINDER 4 IGNITION COIL & INTERFERENCE SUPPRESSION CAPACITOR CYLINDER 4 IGNITION COIL, CYLINDER 5 IGNITION COIL, CYLINDER 6 IGNITION COIL, LEFT INTAKE CAMSHAFT SOLENOID, LEFT EXHAUST CAMSHAFT SOLENOID, LEFT INTAKE CAMSHAFT HALL SENSOR & RIGHT INTAKE CAMSHAFT HALL SENSOR FROM FRONT PREFUSE BOX (DIAGRAM 1 OF 5) FROM FRONT PREFUSE BOX (DIAGRAM 1 OF 5) TO FUSE 14 (DIAGRAM 5 0F 5) FROM FUSE 17 (DIAGRAM 4 OF 5) FROM ENGINE CIRCUIT 87 RELAY (DIAGRAM 4 0F 5) TO FUSE 1 (DIAGRAM 5 0F 5) STEERING COLUMN MODULE CONTROL UNIT AUTOMATIC AIR CONDITIONING CONTROL & OPERATING UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT FROM ECO START/ STOP FUNCTION ADDITIONAL BATTERY RELAY (DIAGRAM 1 OF 5) AUDIO/ COMAND CONTROL PANEL AUDIO/ COMAND DISPLAY CRADLE NAVIGATION MODULE ELECTRONIC SELECTOR LEVEL MODULE CONTROL MODULE MULTI- FUNCTION CAMERA
T 7.5A 7.5A 10A U 30Z F 30Z DATA Q P 7.5A 30 UB 20A 30Z CAN-E L CAN-E H CAN-B H CAN-B L DATA 31 20A 30A 30A 7.5A 40A 25A 7.5A FRONT SAM CONTROL UNIT W/ FUSE & RELAY MODULE AUTOMATIC TRANSMISSION NEUTRAL POSITION SWITCH ELECTRIC STEERING LOCK CONTROL UNIT C5C 14 C18M 11 C2I 11 C5C 9 1 C2I 5 C9G 2 C5C X190 4 3 2 C12S C11C 2 10 4 C4I 1 2 C2 10 C10T 3 4 2 C1 1 2 3 4 5 6 7 8 9 10 8 4 C7I 3 1 2 1 7 C2I 9 RED/WHT BLK/RED YEL/ORG BLK BLK BLK/RED BLK/RED VIO/BLU RED YEL/ORG RED/BLU BLU/BLK YEL/RED RED (OR RED) BLU/BLK BLU/BLK RED/YEL BRN/BLU BRN BRN BRN YEL/RED BRN/RED GRN/WHT GRN BLU/BLK BLU/BLK RED RED/BLU RED/BLU RED/VIO RED/BLU RED/VIO RED/YEL RED/BLK RED CHASSIS CIRCUIT 87 RELAY FUSE 2 FUSE 3 FUSE 20 FUSE 1 FUSE 14 FUSE 19 FUSE 28 FUSE 27 FUSE 26 FUSE 34 FUSE 33 FUSE 36 FUSE 35 5A ELECTRONIC IGNITION SWITCH CONTROL UNIT (LEFT REAR OF ENGINE COMPT) (LEFT FRONT FOOTWELL) (NOT USED) (7-SPEED A/T) (W/ ACTIVE BLIND SPOT ASSIST), (W/ ACTIVE BLIND SPOT ASSIST), (IF EQUIPPED) (W/ AUDIO 20), (W/ AUDIO 20 W/ CD CHANGER) (IF EQUIPPED) W/ KEYLESS GO W/O KEYLESS GO W15/5 FROM FUSE 16 (DIAGRAM 4 OF 5) FROM FUSE 32 (DIAGRAM 4 OF 5) FROM FUSE 29 (DIAGRAM 4 OF 5) DISTRONIC ELECTRIC CONTROLLER UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT FROM FRONT PREFUSE BOX (DIAGRAM 1 OF 5) FULLY INTEGRATED TRANSMISSION CONTROL UNIT VARIO ROOF CONTROL UNIT INSTRUMENT CLUSTER RIGHT REAR BUMPER RADAR SENSOR ME-SFI (ME) CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT LEFT REAR BUMPER RADAR SENSOR ANALOG CLOCK FUEL PUMP CONTROL UNIT LEFT FRONT BUMPER DISTRONIC SENSOR & RIGHT FRONT BUMPER DISTRONIC SENSOR FROM FRONT PREFUSE BOX (DIAGRAM 1 OF 5) RADIO COMAND CONTROL UNIT VARIO ROOF CONTROL UNIT COMPUTER DATA LINES SYSTEM