Mercedes·S550·2008 Mercedes S550·Wiring
Wiring diagram

2008 Mercedes S550 — power distribution

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Power distribution

A A H 400A K M L 150A 80A 100A G 200A 25A 40A 7.5A 150A 200A 150A B 80A E 125A 200A 5A 5A 150A D 20A F 40A 10A B C 5A 7.5A 7.5A 7.5A J I 7.5A N STARTER BATTERY VEHICLE POWER SUPPLY CONTROL UNIT ON-BOARD ELECTRICAL SYSTEM BATTERY FRONT SAM CONTROL MODULE W/ FUSE & RELAY MODULE 1 6 I4 MR5 2 1 MR5 14 6 11A 4 3 2 I2 I3 1 11A 11 11C CALL SYSTEM CONTROL EMERGENCY STARTER 5 1 C3 4 C2 HEATED WINDSHIELD CONTROL MODULE UNIT 4 MR1 I1 4 2 C1 14 I1 4 6 C1 1 5 BLK RED RED RED/WHT RED RED RED RED RED BRN RED RED BLK RED RED YEL/RED RED RED RED RED RED RED/GRN RED YEL/RED BLK BLK RED RED/GRN RED RED RED/GRN PNK/RED RED RED RED/YEL RED/YEL RED/BLK RED/GRN RED/BLK FRONT PREFUSE BATTERY COUPLING RELAY FUSE 4 FUSE 9 FUSE 3 FUSE 1 FUSE 6 FUSE 10 FUSE 5 FUSE 7 FUSE 8 ON-BOARD ELECTRICAL NETWORK LINE PYROFUSE TEMPERATURE SENSOR QUIESCENT CURRENT CUTOUT RELAY ON-BOARD ELECTRICAL NETWORK LINE PYROFUSE FUSE 10 FUSE 5 FUSE 9 FUSE 4 FUSE 3 FUSE 2 FUSE 7 FUSE 8 FUSE 6 FUSE 36 FUSE 29 FUSE 40 FUSE 39 FUSE 37 FUSE 38 FUSE 54 (NOT USED) (NOT USED) IF EQUIPPED W3/1 GENERATOR ESP CONTROL MODULE TO FRONT SAM CONTROL MODULE W/ FUSE & RELAY MODULE (DIAGRAM 1 OF 4) TO FRONT SAM CONTROL MODULE W/ FUSE & RELAY MODULE (DIAGRAM 1 OF 4) ELECTRIC SUCTION FAN ENGINE & A/C W/ INTEGRATED RELAY MODULE TO RIGHT INSTRUMENT PANEL FUSE BOX (DIAGRAM 2 OF 4) TO REAR SAM CONTROL MODULE W/ FUSE & RELAY MODULE (DIAGRAM 2 OF 4) TO FRONT SAM CONTROL MODULE W/ FUSE & RELAY MODULE (DIAGRAM 3 OF 4) TO SPECIAL PROTECTION VEHICLE ADDITIONAL FUSE HOLDER (DIAGRAM 2 OF 4) TO REAR SAM CONTROL MODULE W/ FUSE & RELAY MODULE (DIAGRAM 3 OF 4) TO LEFT INSTRUMENT PANEL FUSE BOX (DIAGRAM 3 OF 4) FROM FRONT PREFUSE (DIAGRAM 1 OF 4) FROM FRONT PREFUSE (DIAGRAM 1 OF 4) STARTER CIRCUIT 15 RELAY TO CHASSIS CIRCUIT 87 RELAY (DIAGRAM 3 OF 4) TO CIRCUIT 15 RELAY (DIAGRAM 4 OF 4) AIR PUMP RELAY AIR SUSPENSION COMPRESSOR RELAY FAN RELAY MODULE ENGINE CIRCUIT 87 RELAY WIPER PARK HEATER RELAY TO CIRCUIT 15R RELAY (DIAGRAM 4 OF 4) A/C RECIRCULATION UNIT CENTRAL GATEWAY CONTROL MODULE UPPER CONTROL PANEL CONTROL MODULE TO REAR SAM CONTROL MODULE W/ FUSE & RELAY MODULE (DIAGRAM 2 OF 4) DATA LINK CONNECTOR INSTRUMENT CLUSTER TO EIS (EZS) CONTROL UNIT (DIAGRAM 4 OF 4) TO EIS (EZS) CONTROL UNIT (DIAGRAM 4 OF 4)
N 30A 7.5A 15A 15A 15A D O P 30A 40A 40A 7.5A 40A E 30A 15A 40A 5A 5A 7.5A 30A 30A 30A 5A 20A 30A 50A 50A 50A 30A C 20A 5A REAR FUSE BOX I REAR FUSE BOX II REAR SAM CONTROL MODULE W/ FUSE & RELAY MODULE I1 I9 15 3 1 6 6 I1 3 X2 2 1 C139 C140 C6 C4 C2 C3 C8 C9 C12 C14 C10 C19 C20 C18 C20 C19 2 3 4 1 C13 C16 UNIT EMERGENCY CALL SYSTEM CONTROL NCA NCA NCA NCA PNK/RED RED RED/BLU RED/BLK GRY/BLU BRN RED/WHT RED/WHT NCA RED RED RED RED RED RED RED RED RED RED RED/GRY RED/BLK RED/BLK (OR RED) RED RED/BLK RED RED RED RED/WHT RED RED/YEL RED/YEL RED/WHT RED RED RED/YEL RED RED RED RED RED RED RED FUSE 8 FUSE 4 FUSE 10 FUSE 9 FUSE 10 FUSE 5 FUSE 6 FUSE 1 FUSE 2 FUSE 3 FUSE 7 SPECIAL PROTECTION VEHICLE ADDITIONAL FUSE HOLDER FUSE FUSE FUSE FUSE FUSE 130 FUSE 131 POWER OUTLET RELAY CIGAR LIGHTER RELAY FUSE 139 FUSE 140 FUSE 117 REAR CIGAR LIGHTER HEATING ELEMENT RIGHT INSTRUMENT PANEL FUSE BOX FUSE 72 FUSE 74 FUSE 83 FUSE 77 FUSE 70 FUSE 89 FUSE 75 FUSE 80 FUSE 81 FUSE 79 FUSE 88 FUSE 82 FUSE 76 FUSE 91 FUSE 90 FUSE 86 FUSE 78 FUSE 87 FUSE 84 FUSE 85 FUSE 71 FUSE 73 (NOT USED) LATE PRODUCTION EARLY PRODUCTION (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) IF EQUIPPED IF EQUIPPED LATE PRODUCTION W17 FROM VEHICLE POWER SUPPLY CONTROL UNIT (DIAGRAM 1 OF 4) CIRCUIT 30 CONNECTOR SLEEVE RELAY (FEED FROM CIRCUIT 15) TWO-WAY RADIO RELAY MODULE OUTSIDE SPEAKER INTERFE- RENCE FILTER FIRE EXTINGUISHING SYSTEM CONTROL MODULE SPECIAL VEHICLE MULTIFUNCTION CONTROL MODULE POWER WINDOW HYDRAULIC PUMP RELAY FROM VEHICLE POWER SUPPLY CONTROL UNIT (DIAGRAM 1 OF 4) FROM FRONT SAM CONTROL MODULE W/ FUSE & RELAY MODULE (DIAGRAM 1 OF 4) TO CIRCUIT 15R RELAY (DIAGRAM 4 OF 4) FUEL PUMP RELAY MODULE CIRCULATING PUMP RELAY REAR WINDOW DEFROSTER RELAY TO CIRCUIT 15 RELAY (DIAGRAM 4 OF 4) INTERIOR LIGHTS SYSTEM REAR WINDOW ANTENNA AMPLIFIER MODULE FROM VEHICLE POWER SUPPLY CONTROL UNIT (DIAGRAM 1 OF 4) ELECTRIC PARKING BRAKE CONTROL MODULE LEFT FRONT DOOR CONTROL MODULE TLC (HDS) CONTROL MODULE REAR RIGHT DOOR CONTROL MODULE KEYLESS GO CONTROL MODULE INTELLIGENT SERVO MODULE RIGHT FRONT DOOR CONTROL MODULE ALARM SIGNAL SIREN LEFT REAR DOOR CONTROL MODULE
40A 40A 25A 5A 25A 5A 5A 15A 7.5A 7.5A K 5A 5A 40A 5A 7.5A 7.5A 15A F 7.5A 5A 40A 40A Q 25A 25A 7.5A 5A H 7.5A 10A 30A 15A 10A 7.5A G 15A 15A 30A 15A 10A 7.5A 7.5A Q REAR SAM CONTROL MODULE W/ FUSE & RELAY MODULE FRONT SAM CONTROL MODULE W/ FUSE & RELAY MODULE REAR SAM CONTROL MODULE W/ FUSE & RELAY MODULE I2 3 1 I1 13 14 9 C149 4 2 6 I3 7 6 I2 C60 C62 C66 12 I5 2 14 16 15 1 C144 C143 I5 4 3 C141 2 11 I1 1 8 C2 9 6 5 I2 10 I3 10 C152 C151 C150 C146 C145 C142 C148 RED RED/WHT RED RED/VIO RED (OR RED) RED/WHT RED/YEL RED/GRN RED RED/GRN RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED/WHT RED RED RED RED RED/WHT RED/WHT RED RED/WHT RED/YEL RED/BLU RED/WHT RED RED/BLU RED RED/WHT (OR RED) RED RED/WHT LEFT INSTRUMENT PANEL FUSE BOX FUSE 96 FUSE 101 FUSE 102 FUSE 93 FUSE 104 FUSE 111 FUSE 95 FUSE 106 FUSE 97 FUSE 99 FUSE 105 FUSE 113 FUSE 107 FUSE 110 FUSE 94 FUSE 103 FUSE 98 FUSE 92 FUSE 109 FUSE 108 FUSE 100 FUSE 50 FUSE 49 FUSE 121 FUSE 51 FUSE 47 FUSE 46 FUSE 48 FUSE 122 FUSE 53 FUSE 127 FUSE 120 FUSE 20 CHASSIS CIRCUIT 87 RELAY FUSE 31 FUSE 32 FUSE 66 FUSE 35 FUSE 62 FUSE 60 FUSE 34 FUSE 28 FUSE 144 FUSE 119 FUSE 125 FUSE 141 FUSE 142 FUSE 143 FUSE 126 FUSE 148 FUSE 124 FUSE 149 FUSE 152 FUSE 151 FUSE 145 FUSE 128 FUSE 150 FUSE 123 FUSE 146 (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) W/ REAR A/C IF EQUIPPED IF EQUIPPED (NOT USED) (NOT USED) (NOT USED) (W/ STANDARD EQUIPMENT & LUMBER SUPPORT) (NOT USED) (W/ DYNAMIC SEAT) (IF EQUIPPED) (W/ MULTICONTOUR SEAT) (IF EQUIPPED) (BACKUP CAMERA) (NOT USED) (LATE PRODUCTION) (W/ PARKTRONIC SYSTEM) (EARLY PRODUCTION) (W/ DISTRONIC PLUS) (LATE PRODUCTION) (LATE PRODUCTION) FROM VEHICLE POWER SUPPLY CONTROL UNIT (DIAGRAM 1 OF 4) LEFT REAR MULTICONTOUR BACKREST CONTROL MODULE WSS CONTROL UNIT (WEIGHT SENSING SYSTEM) TPM CONTROL MODULE ESP CONTROL MODULE AUDIO TUNER CONTROL UNIT LEFT FRONT SEAT CONTROL MODULE RCP (HBF) CONTROL MODULE REAR CLIMATE CONTROL ELECTRONIC BLOWER REGULATOR SDAR CONTROL UNIT RESTRAINT SYSTEMS CONTROL MODULE RIGHT REAR MULTICONTOUR BACKREST CONTROL MODULE REAR A/C CONTROL MODULE RIGHT FRONT SEAT CONTROL MODULE FROM VEHICLE POWER SUPPLY CONTROL UNIT (DIAGRAM 1 OF 4) FROM VEHICLE POWER SUPPLY CONTROL UNIT (DIAGRAM 1 OF 4) TO FUSE 119 (DIAGRAM 3 FO 4) FROM FUSE 29 (DIAGRAM 1 FO 4) LUMBER PUMP COMAND CONTROL UNIT PNEUMATIC PUMP FOR DYNAMIC SEAT CONTROL STEERING COLUMN MODULE ME-SFI (ME) CONTROL MODULE ELECTRIC CONTROL UNIT NIGHT VISION ASSIST CONTROL MODULE AIRMATIC W/ ADS CONTROL MODULE MULTICONTOUR SEAT PNEUMATIC PUMP ABC CONTROL MODULE COMAND DISPLAY DTR CONTROL UNIT AAC (KLA) CONTROL MODULE ELECTRIC PARKING BRAKE CONTROL UNIT FROM FUSE 120 (DIAGRAM 3 FO 4) UNIVERSAL PORTABLE CTEL INTERFACE (UPCI (UHI)) CONTROL MODULE LEFT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR OVERHEAD CONTROL PANEL MODULE FRONT CENTER OPERATING UNIT FUEL PUMP CONTROL MODULE REAR SEATS CONTROL MODULE VOICE CONTROL SYSTEM (VCS(SBS)) CONTROL MODULE PTS CONTROL MODULE VOICE CONTROL SYSTEM (VCS(SBS)) CONTROL MODULE RIGHT FRONT REVERSIBLE EMERGENCY TENSIONING RETRACTOR REVERSE CAMERA CONTROL MODULE & BACKUP CAMERA VOLTAGE SUPPLY MODULE RADAR SENSOR CONTROL UNIT (SGR) PANORAMIC SLIDING ROOF CONTROL MODULE
(OK 7.5A) R 10A 7.5A 15A 10A 10A 15A J 30A 7.5A 30A R I 7.5A L M 7.5A 7.5A P 25A 7.5A 15A O FRONT SAM CONTROL MODULE W/ FUSE & RELAY MODULE FRONT SAM CONTROL MODULE W/ FUSE & RELAY MODULE REAR SAM CONTROL MODULE W/ FUSE & RELAY MODULE 2 1 3 I2 C64 6 B C63 C65 6 4 5 MR2 I1 4 3 2 1 6 A 5 4 2 1 3 5 4 9 2 C2 3 C5 C1 6 9 I2 2 I1 4 7 15 3 MR3 4 C61 C137 C138 C133 C135 C134 2 1 GRY/BLU BRN NCA NCA NCA NCA GRN/YEL GRN GRN/YEL PNK/BLU PNK/GRN RED BRN RED BRN BRN YEL/GRY VIO PNK/RED VIO YEL/GRY YEL/WHT BLK/WHT RED/GRN RED/BLK PNK/GRN GRN/WHT RED/GRN BRN/RED YEL/WHT GRN/RED BLK PNK/RED RED/BLK CIRCUIT 15 RELAY CIRCUIT 15R RELAY FUSE 52B FUSE 63 FUSE 25 FUSE 30 FUSE 26 FUSE 64 FUSE 27 FUSE 65 EIS (EZS) CONTROL MODULE FUSE 44 FUSE 52A FUSE 61 FUSE 45 FUSE 33 FUSE 43 FUSE 42 FUSE 41 FRONT CIGAR LIGHTER CIRCUIT 15 RELAY CIRCUIT 15R RELAY FUSE 136 FUSE 135 FUSE 133 FUSE 134 FUSE 137 FUSE 138 (NOT USED) (NOT USED) (NOT USED) (NOT USED) W/ REAR ENTERTAINMENT (DVD) W15/1 W34 W34 TO FUSE 61 (DIAGRAM 4 OF 4) FROM FUSE 40 (DIAGRAM 1 OF 4) FROM FUSE 39 (DIAGRAM 1 OF 4) FAN RELAY MODULE ME-SFI (ME) CONTROL MODULE LEFT FRONT HEADLAMP UNIT DRIVER NECK- PRO HEAD RESTRAINT SOLENOID SEPARATION POINT INSTRUMENT CLUSTER RIGHT FRONT HEADLAMP UNIT FRONT PASSENGER NECK-PRO HEAD RESTRAINT SOLENOID SEPARATION POINT FROM FUSE 64 (DIAGRAM 4 OF 4) INTERIOR LIGHTS SYSTEM SLAVE WIPER MOTOR RESTRAINT SYSTEM CONTROL MODULE CHASSIS CAN/ COCKPIT VOLTAGE DISTRIBUTOR CONNECTOR FROM FRONT SAM CONTROL MODULE W/ FUSE & RELAY MODULE (DIAGRAM 1 OF 4) MASTER WIPER MOTOR INTERIOR CAN/ COCKPIT VOLTAGE DISTRIBUTOR CONNECTOR FROM FRONT SAM CONTROL MODULE W/ FUSE & RELAY MODULE (DIAGRAM 1 OF 4) FROM FUSE 130 (DIAGRAM 2 OF 4) FROM FUSE 131 (DIAGRAM 2 OF 4) HYDRAULIC POWER WINDOW OPEN RELAY, HYDRAULIC POWER WINDOW CLOSED RELAY & DOOR HYDRAULIC POWER WINDOW PRESSURE SWITCH RADAR SENSOR CONTROL UNIT (SGR) EMERGENCY CALL SYSTEM CONTROL UNIT VOLUME CONTROL INTERMEDIATE CONNECTOR