Wiring Diagrams for Smart Fortwo III (2014-2024)

Automatic a/c circuit

Anti-lock brakes circuit

Anti-theft circuit

Body control modules circuit

Computer data lines circuit

Cooling fan circuit

Cruise control circuit

Defoggers circuit

Electronic power steering circuit

Wiring diagram engine performance engine performance circuit

Backup lamps circuit Exterior lamps circuit

Ground distribution circuit

Headlights circuit

Horn circuit

Instrument cluster circuit

Courtesy lamps circuit Instrument illumination circuit

Multifunction camera circuit Navigation circuit, w/ amplifier Navigation circuit, w/o amplifier Parktronic circuit Rear camera circuit

Power distribution circuit

Power door locks circuit

Power mirrors circuit

Power seats circuit

Power top/sunroof circuit

Power windows circuit, w/ convenience control & obstruction sensor Power windows circuit, w/o convenience control & obstruction sensor

Base radio circuit Premium radio circuit, w/ amplifier & multi-media Premium radio circuit, w/ amplifier w/o multi-media Premium radio circuit, w/o amplifier

Supplemental restraints circuit

Transmission circuit

Trunk release circuit, convertible Trunk release circuit, coupe

Warning systems circuit

Wiper/washer circuit

ALARM SIREN ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES, EXTERIOR LIGHTS SYSTEMS ELECTRIC VEHICLE SOUND GENERATOR HIGH-VOLTAGE BATTERY HEATER HIGH-VOLTAGE BATTERY SAFETY SHUT-OFF IGNITION LOCK ON-BOARD ELECTRICAL SYSTEM BATTERY TRANSPONDER COIL

BLENDING AIR FLAP ACTUATOR MOTOR BLOWER MOTOR CENTER LOCKING SYSTEM ACTUATOR DRIVER DOOR CENTRAL LOCKING SYSTEM ACTUATOR ELECTRIC POWER STEERING ACTUATOR MOTOR ELECTRIC VEHICLE DRIVE MOTOR ELECTRIC VEHICLE DRIVE MOTOR FAN ENGINE CONTROLS SYSTEM FOOTWELL FLAP ACTUATOR MOTOR FRESH AIR/ AIR RECIRCULATION FLAP ACTUATOR MOTOR FRONT FOLDING ROOF DRIVE MOTOR FRONT PASSENGER DOOR CENTER LOCKING SYSTEM ACTUATOR FRONT PASSENGER DOOR CENTRAL LOCKING SYSTEM ACTUATOR LEFT FRONT POWER WINDOW MOTOR LEFT SOFT TOP DRIVE ELECTRIC MOTOR LIFTGATE CENTRAL LOCKING ACTUATOR MOTOR REAR ENGINE COMPT) REAR OF ENGINE COMPT) REAR-END DOOR CENTRAL LOCKING MOTOR RIGHT FRONT POWER WINDOW MOTOR RIGHT SOFT TOP DRIVE ELECTRIC MOTOR TAILGATE WIPER MOTOR TANK CAP CENTRAL LOCKING ACTUATOR TOP OF ENGINE) WIPER MOTOR

FM, AM, DAB ANTENNA GPS ANTENNA GSM/UMTS ANTENNA

BLOWER REGULATOR DISTANCE WARNING FUNCTION BUTTON DRIVER TRUNK LID/ LIFTGATE CONTROL BUTTON HORN BUTTON LANE KEEPING ASSIST BUTTON LEFT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP MENU NAVIGATION BUTTON GROUP OK BUTTON RIGHT MULTI-FUNCTION STEERING WHEEL BUTTON GROUP SCROLL BACK BUTTON SCROLL FORWARD BUTTON SOUND GENERATOR BUTTON START/STOP BUTTON VOICE CONTROL SYSTEM ON BUTTON VOLUME BUTTON

MULTI-FUNCTION CAMERA

CHARGER FEED SOCKET INDICATOR LED CHARGER FEED-IN SOCKET DIAGNOSTIC CONNECTOR REAR LUGGAGE CARRIER ELECTRICAL CONNECTOR

AMBIANCE ILLUMINATION CONTROL UNIT AMPLIFIER CONTROL UNIT AUDIO GATEWAY CONTROL UNIT AUDIO GATEWAY CONTROL UNIT, WINDSHIELD READING SYSTEM CONTROL UNIT, CARD READER BATTERY MANAGEMENT SYSTEM CONTROL UNIT BRAKE BOOSTER VACUUM PUMP CONTROL UNIT CENTER SAM CONTROL UNIT CENTER SAM CONTROL UNIT, ELECTRONIC SELECTOR LEVER MODULE CONTROL UNIT CENTRAL SAM CONTROL UNIT CHARGE MONITORING CONTROL UNIT CLIMATE CONTROL CONTROL UNIT CLIMATE CONTROL CONTROL, OPERATING UNIT CLIMATE CONTROL OPERATING UNIT CONTROL UNIT) DC/DC CONVERTER CONTROL UNIT DISTANCE WARNING FUNCTION W/ ACTIVE BRAKE INTERVENTION CONTROLLER UNIT DOUBLE CLUTCH HIGH-VOLTAGE TRANSMISSION PTC HEATER CONTROL UNIT DOUBLE CLUTCH TRANSMISSION UNIT DOUBLE-CLUTCH TRANSMISSION CONTROL UNIT DRIVER SAM CONTROL UNIT DRIVER SAM CONTROL UNIT, CENTER SAM CONTROL UNIT DRIVER SEAT HEATER CONTROL UNIT ELECTRIC DRIVE CONTROL UNIT ELECTRIC DRIVE CONTROL UNIT, BATTERY MANAGEMENT SYSTEM CONTROL UNIT ELECTRICAL POWER STEERING CONTROL UNIT ELECTRONIC SELECTOR LEVER MODULE CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT ELECTRONIC STABILITY PROGRAM CONTROL UNIT, TRANSPONDER COIL, STOP LAMP SWITCH FRONT PASSENGER SEAT HEATER CONTROL UNIT HIGH-VOLTAGE BATTERY CHARGER CONTROL UNIT HIGH-VOLTAGE BATTERY COOLING, HIGH-VOLTAGE CONTROL UNIT BOX CONTROL VALVE HIGH-VOLTAGE CONTROL UNIT BOX HIGH-VOLTAGE CONTROL UNIT BOX POWER ELECTRONICS CONTROL UNIT HIGH-VOLTAGE ELECTRICAL POWER BATTERY HEATER STEERING CONTROL UNIT LEFT FRONT LAMP UNIT LEFT REAR LAMP UNIT MULTIMEDIA CONNECTION UNIT MULTIMEDIA OPERATING UNIT PARKING SYSTEM CONTROL UNIT POWER ELECTRONICS CONTROL UNIT POWERLINE GATEWAY CONTROL UNIT RIGHT FRONT LAMP UNIT RIGHT REAR LAMP UNIT SOFT TOP CONTROL DRIVE UNIT SOFT TOP CONTROL DRIVE UNIT, RIGHT TRUNK LID CONTROL SWITCH SOFT TOP CONTROL UNIT SOUND SYSTEM AMPLIFIER CONTROL UNIT SUPPLEMENTAL RESTRAINT SYSTEM CONTROL UNIT WINDSHIELD READING SYSTEM CONTROL UNIT WINDSHIELD READING SYSTEM CONTROL UNIT, ECONOMY MODE SWITCH,

BATTERY CLAMP FUSE FUSE 1 FUSE 2 FUSE 3 FUSE 4 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 9 FUSE 10 FUSE 11 FUSE 12 FUSE 14 FUSE 15 FUSE 16 FUSE 17 FUSE 18 FUSE 19 FUSE 20 FUSE 21 FUSE 22 FUSE 23 FUSE 24 FUSE 25 FUSE 26 FUSE 27 FUSE 28 FUSE 29 FUSE 30 FUSE 31 FUSE 33 FUSE 34 FUSE 35 FUSE 36 FUSE 37 FUSE 38 FUSE 39 FUSE BOX RESERVE FUSE 1 RESERVE FUSE 2 RESERVE FUSE 3 RESERVE FUSE 4 RESERVE FUSE 8 RESERVE FUSE 9 RESERVE FUSE 13 RESERVE FUSE 32

HIGH-VOLTAGE PTC HEATER LEFT FRONT SEAT BACKREST HEATER PAD LEFT FRONT SEAT CUSHION HEATER PAD REAR WINDOW HEATER RIGHT FRONT SEAT BACKREST HEATER PAD RIGHT FRONT SEAT CUSHION HEATER PAD STEERING WHEEL HEATER

CENTRAL LOCKING INDICATOR LAMP HAZARD WARNING SYSTEM INDICATOR LAMP PARKING BRAKE INDICATOR SWITCH

CENTER STOP LAMP DOOR LOCKS, EXTERIOR LIGHTS SYSTEMS DOOR LOCKS, INTERIOR LIGHTS SYSTEMS FRONT DOME LAMP W/ READING LAMPS FRONT INTERIOR LAMP GLOVE BOX LAMP) HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS INSTRUMENT CLUSTER, EXTERIOR LIGHTS SYSTEMS INTERIOR LIGHTS, TRUNK, TAILGATE, FUEL DOORS SYSTEMS LEFT ADDITIONAL TURN SIGNAL LAMP LEFT BACKUP LAMP LEFT FOG LAMP LEFT FRONT FOOTWELL LAMP LEFT FRONT READING LAMP LEFT LICENSE PLATE LAMP LEFT REAR FOG LAMP LEFT REAR TURN SIGNAL LAMP LEFT TAILLAMP, PARKING LAMP, STOP LAMP LEFT TURN SIGNAL LAMP LIGHTS SYSTEM LOAD COMPARTMENT LAMP RIGHT ADDITIONAL TURN SIGNAL LAMP RIGHT BACKUP LAMP RIGHT FOG LAMP RIGHT FRONT FOOTWELL LAMP RIGHT FRONT READING LAMP RIGHT LICENSE PLATE LAMP RIGHT REAR FOG LAMP RIGHT REAR TURN SIGNAL LAMP RIGHT STOP LAMP RIGHT TAILLAMP, PARKING LAMP, STOP LAMP RIGHT TURN SIGNAL LAMP

BATTERY COOLING SYSTEM COOLANT PUMP 1 BATTERY COOLING SYSTEM COOLANT PUMP 1, BATTERY COOLING SYSTEM COOLANT PUMP 2 BATTERY COOLING SYSTEM COOLANT PUMP 2 VACUUM PUMP WINDSHIELD WASHER SYSTEM PUMP

AIR CONDITIONING BLOWER MOTOR POWER SUPPLY RELAY BATTERY COOLING SYSTEM COOLANT PUMPS RELAY COMBUSTION ENGINE FUSE, RELAY MODULE ELECTRIC VEHICLE DRIVE MOTOR FAN RELAY FAN RELAY FANFARE HORN RELAY FRONT HEADLAMPS RELAY FRONT POWER WINDOW RELAY HEATED REAR WINDOW/ OUTSIDE MIRRORS RELAY HEATED REAR WINDOW/OUTSIDE MIRRORS RELAY HIGH-VOLTAGE BATTERY HEATER RELAY HOT W/ AIR CONDITIONING BLOWER MOTOR POWER SUPPLY RELAY ENERGIZED HOT W/ BATTERY COOLING SYSTEM COOLANT PUMPS RELAY ENERGIZED ICE COMBUSTION ENGINE COOLING FAN SOLENOID SWITCH, FAN RELAY POWER SUPPLY FUSE, RELAY MODULE SECONDARY AIR INJECTION PUMP RELAY, HIGH VOLTAGE BATTERY HEATER RELAY STARTER RELAY STEERING WHEEL HEATER RELAY VEHICLE INTERIOR FUSE, RELAY MODULE

ACCELERATOR PEDAL SENSOR ATA ULTRASONIC SENSOR ATA ULTRASONIC SENSOR 2 BATTERY SENSOR BRAKE VACUUM SENSOR CENTER REAR PARKING SYSTEM DISTANCE SENSOR COOLANT PRESSURE SENSOR DISTANCE WARNING FUNCTION W/ RADAR SENSOR CONTROLLER UNIT ELECTRIC DRIVE CONTROL UNIT, TRANSMISSION MODE RECOGNITION SENSOR ELECTRIC POWER STEERING TORQUE SENSOR EVAPORATOR TEMPERATURE SENSOR FRONT FOLDING ROOF DRIVE MOTOR HALL SENSOR FUEL PUMP W/ FILL LEVEL SENSOR, TEMPERATURE SENSOR HIGH-VOLTAGE CRASH SENSOR CONTROL UNIT INTERIOR PROTECTION SENSOR 1 INTERIOR PROTECTION SENSOR 2 LEFT FRONT AXLE RPM SENSOR LEFT FRONT DOOR PRESSURE SENSOR LEFT FRONT SEAT POSITION SENSOR LEFT FRONTAL ACCELERATION SENSOR LEFT REAR AXLE RPM SENSOR LEFT REAR PARKING SYSTEM DISTANCE SENSOR LEFT SIDE BAG SENSOR RAIN/LIGHT SENSOR RIGHT FRONT AXLE RPM SENSOR RIGHT FRONT DOOR PRESSURE SENSOR RIGHT FRONT SEAT POSITION SENSOR RIGHT FRONTAL ACCELERATION SENSOR RIGHT REAR AXLE RPM SENSOR RIGHT REAR PARKING SYSTEM DISTANCE SENSOR STEERING WHEEL ANGLE SENSOR TEMPERATURE SENSOR TOW-AWAY PROTECTION SENSOR TRANSMISSION MODE RECOGNITION SENSOR VEHICLE INTERIOR HUMIDITY/ TEMPERATURE SENSOR

BASS SPEAKER CENTER INSTRUMENT PANEL SPEAKER LEFT FRONT DOOR SPEAKER LEFT REAR SURROUND SPEAKER RIGHT FRONT DOOR SPEAKER RIGHT REAR SURROUND SPEAKER

ACCELERATE, SET SWITCH BACKUP LIGHT ACTIVATION/IDLE RECOGNITION SWITCH BRAKE FLUID LEVEL SWITCH CLUTCH PEDAL SWITCH COMBINATION SWITCH CRUISE CONTROL/ VARIABLE SPEED LIMITER SWITCH CRUISE CONTROL/VARIABLE SPEED LIMITER SWITCH GROUP DECELERATE, SET SWITCH DRIVER SIDE POWER WINDOW SWITCH GROUP ECONOMY MODE SWITCH FAN MOTOR, ICE COMBUSTION ENGINE COOLING FAN SOLENOID SWITCH FRONT INTERIOR LAMP SWITCH HAZARD WARNING SYSTEM SWITCH INSIDE DOOR HANDLE CENTRAL LOCKING SWITCH INSTRUMENT PANEL SWITCH GROUP INSTRUMENT PANEL SWITCH GROUP SYMBOL ILLUMINATION LEFT FRONT POWER WINDOW SWITCH LEFT FRONT READING LAMP SWITCH LEFT FRONT SEAT BELT BUCKLE SWITCH LEFT FRONT SEAT HEATER SWITCH LIFTGATE CENTRAL LOCKING SYSTEM MICRO SWITCH OFF SWITCH OIL PRESSURE SWITCH OUTSIDE MIRROR ADJUSTMENT SWITCH OUTSIDE MIRROR ADJUSTMENT SWITCH, DRIVER TRUNK LID/ PARKING SYSTEM SWITCH PASSENGER-SIDE POWER WINDOW SWITCH POWER SOFT TOP SWITCH RESUME FROM MEMORY SWITCH RIGHT FRONT POWER WINDOW SWITCH RIGHT FRONT READING LAMP SWITCH RIGHT FRONT SEAT BELT BUCKLE SWITCH RIGHT FRONT SEAT HEATER SWITCH RIGHT TRUNK LID CONTACT SWITCH STOP LAMP SWITCH TRUNK LID/ LIFTGATE RELEASE SWITCH TRUNK LID/LIFTGATE RELEASE SWITCH W/O BATTERY EDW SWITCH W/ BATTERY EDW SWITCH CONVERTIBLE COUPE WINDSHIELD WIPER SYSTEM SWITCH WINDSHIELD WIPER SYSTEM SWITCH, BACKUP LIGHT ACTIVATION/ IDLE RECOGNITION SWITCH

HIGH-VOLTAGE BATTERY COOLING SYSTEM REGULATING VALVE

(OR RED/ WIRE BLK WIRE BLK/BRN WIRE BLK/PNK WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE BRN/WHT WIRE GRN WIRE GRN/BRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/WHT WIRE NCA WIRE ORG/ WIRE PNK WIRE PNK/BLK WIRE PNK/BRN WIRE PNK/WHT WIRE RED WIRE RED/BLK WIRE RED/BRN WIRE RED/PNK WIRE RED/WHT WIRE RUN WIRE VIO WIRE VIO/YEL WIRE WHT WIRE WHT/BRN WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/RED WIRE YEL/WHT WIRE

10 BF 17 TO 32 NOT 137 G 137 H (PINS: +APC ADDITIONAL INSTRUMENTS AIR CONDITIONING SYSTEM AMBIENT LIGHT AUX JACK BACKUP LAMPS CIRCUIT CAN L CENTER COCKPIT AMBIANCE ILLUMINATION COMPUTER DATA COMPUTER DATA LINES SYSTEM COOLING FANS COOLING FANS SYSTEM CRUISE CONTROL SYSTEM DC IN- DEFOGGER SYSTEM DISTANCE WARNING FUNCTION GATEWAY DOC OUT+ AC DOC OUT- DOOR LOCKS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS DOOR LOCKS, ANTI-THEFT SYSTEMS STARTING/CHARGING SYSTEM DRIVER AIR BAG SQUIB 1 DRIVER AIR BAG SQUIB 2 DRIVER DOOR DRIVER KNEE BAG SQUIB ELECTRIC REFRIGERANT COMPRESSOR EMR COS+ EMR RET EMR SIN- EXCT+ FANFARE HORNS FOLDING ROOF MICROSWITCH FRONT CIGARETTE LIGHTER W/ ASHTRAY ILLUMINATION FRONT PASSENGER AIR BAG SQUIB 1 FRONT PASSENGER AIR BAG SQUIB 2 FRONT PASSENGER KNEE BAG SQUIB GND 2 GND 3 GPIO 2 GROUND DISTRIBUTION SYSTEM HANDS-FREE SYSTEM MICROPHONE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN HOT IN ON OR ACC HOT IN ON OR START HOT IN RUN OR START IN LUGGAGE COMPT) INSTRUMENT CLUSTER IS EXCT- LEFT COCKPIT AMBIANCE ILLUMINATION LEFT ELECTRICALLY ADJUSTABLE, HEATED OUTSIDE MIRROR LEFT FRONT BELT ANCHOR FITTING TENSIONER SQUIB LEFT FRONT BELT FORCE LIMITER LEFT FRONT DOOR AMBIANCE ILLUMINATION LEFT FRONT EMERGENCY TENSIONING RETRACTOR SQUIB LEFT FRONT SIDE BAG LEFT LOW, HIGH BEAMS LEFT MIRROR TRIANGLE TWEETER LEFT PARKING LIGHT, STANDING LIGHT, DAYTIME RUNNING LIGHT LEFT REAR SOFT TOP MICROSWITCH LEFT TAILLIGHT/ BRAKE LIGHT LEFT WINDOW BAG SQUIB LIN 2 LIN OUT LINE OUT + LINES SYSTEM MAK AC MAL- MAM BB MAM BF MIRRORS SYSTEM MSS AC MT BB MT EA NAM BF NH AA NM BB PARKING SYSTEM WARNING BUZZER POTENTIOMETER 1 POTENTIOMETER 2 POWER DISTRIBUTION SYSTEM POWER WINDOWS SYSTEM PWM H PWM L RIGHT COCKPIT AMBIANCE ILLUMINATION RIGHT ELECTRICALLY ADJUSTABLE, HEATED OUTSIDE MIRROR RIGHT FRONT BELT ANCHOR FITTING TENSIONER SQUIB RIGHT FRONT BELT FORCE LIMITER RIGHT FRONT DOOR AMBIANCE ILLUMINATION RIGHT FRONT EMERGENCY TENSIONING RETRACTOR SQUIB RIGHT FRONT SIDE BAG RIGHT LOW, HIGH BEAMS RIGHT MIRROR TRIANGLE TWEETER RIGHT PARKING LIGHT, STANDING LIGHT, DAYTIME RUNNING LIGHT RIGHT REAR SOFT TOP MICROSWITCH RIGHT WINDOW BAG SQUIB SEATS SYSTEM SHIELD GSM SIG AC SIG AD SMART RADIO MULTI-MEDIA SMART RADIO MULTI-MEDIA NAVIGATOR SMART RADIO MULTIMEDIA NAVIGATOR SOUND SYSTEM SSAP AA SSAP BA STAGE 1 STAGE 2 STAGE 3 STARTING/CHARGING SYSTEM STARTING/CHARGING, CRUISE CONTROL SYSTEMS STEERING WHEEL CLOCK SPRING STEERING WHEEL CLOCK SPRING CONTACT SUPPLEMENTAL RESTRAINT SYSTEM TELEMATICS SERVICES COMMUNICATION MODULE TOP OF TRANSMISSION) TOUCH- SCREEN TRANSMISSIONS SYSTEM TRUNK LID/ LIFTGATE LOCKING ELEMENT TRUNK LID/LIFTGATE LOCKING ELEMENT TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS, DOOR LOCKS, ANTI-THEFT SYSTEMS USB CONNECTION USB DATA - USB GND USED) W/ ACTIVE LANE KEEPING ASSIST W/ AIR CONDITIONING W/O AIR CONDITIONING W/ ANTI-THEFT ALARM SYSTEM W/O ANTI-THEFT ALARM SYSTEM W/ BASE FITTINGS W/ DIRECT STARTING W/ DIRECT STARTING W/O DIRECT STARTING W/ DIRECT STEERING W/ HALOGEN HEADLAMP W/ MULTI- MEDIA W/ POWER WINDOWS W/O ANTI-THEFT ALARM SYSTEM W/O BASE FITTINGS W/O DIRECT STARTING W/O HALOGEN HEADLAMP W/O MULTI- MEDIA W/O MULTI-FUNCTION STEERING WHEEL W/O POWER WINDOWS WAKE-UP WEIGHT SENSING SYSTEM WIPER/WASHER SYSTEM