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Audi A4 B8 facelift (2011-2015) nca Wiring diagrams

This page contains all the electrical diagrams for the component. nca, in which he is found in the car Audi A4 B8 facelift (2011-2015). You can view various wiring diagrams where this component is used, as well as go to more detailed diagrams to see the complete connection and interaction in the system. All diagrams have links to quickly jump to the corresponding section with the component for easy viewing..

nca wiring diagram (1 of 57)

Audi A4 B8 facelift (2011-2015) nca wiring diagram (1 of 57)

2.0L 3.0L ABS IND LAMP ACTIVE STEERING CONTROL MODULE (UNDER DRIVER'S FOOTWELL CARPET) ASR/ESP IND LAMP BLK WIRE BLK/VIO WIRE BLK/YEL WIRE BRAKE LIGHT SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) BRN WIRE COMFORT SYSTEM CONTROL MODULE (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM ESP SENSOR UNIT ESP SENSOR UNIT 2 (UNDER DRIVER'S SEAT) FUSE FUSE CARRIER FUSE CARRIER FUSE FUSE FUSE FUSE PANEL D (BEHIND RIGHT END OF DASH) GRN/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSE PANEL C FUSE (BEHIND CARRIER FUSE 10 LEFT END OF DASH) HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED INSTRUMENT CLUSTER CONTROL MODULE NCA WIRE ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/WHT WIRE RED/BLK WIRE RED/BRN WIRE RED/WHT WIRE STEERING ANGLE SENSOR (BEHIND STEERING WHEEL)

Go to component -> Anti-lock brakes circuit (2 of 2) -> NCA WIRE

nca wiring diagram (2 of 57)

Audi A4 B8 facelift (2011-2015) nca wiring diagram (2 of 57)

ALARM HORN (RIGHT REAR OF ENGINE COMPT, UNDER PLENUM COVER) ANTENNA AMPLIFIER 3 (SEDAN) (LEFT SIDE OF TRUNK) AUTHORIZATION ANTENNA 1 (UNDER FRONT OF CENTER CONSOLE) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CENTRAL LOCKING, ANTI-THEFT 3 17 ALARM SYSTEM ANTENNA CENTRAL LOCKING, ANTI-THEFT ALARM SYSTEM ANTENNA COMFORT SYSTEM CONTROL MODULE (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM FUSE 6 FUSE 8 FUSE CARRIER 2 FUSE PANEL D (BEHIND RIGHT END OF DASH) FUSE PANEL F (RIGHT GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSE PANEL C FUSE CARRIER 3 (BEHIND LEFT FUSE 12 END OF DASH) INTERIOR ACCESS/ LEFT ACCESS/START AUTHORIZATION ANTENNA (IF EQUIPPED) (IN LEFT REAR DOOR) NCA WIRE ORG/BRN WIRE ORG/GRN WIRE RED/GRY WIRE RED/WHT WIRE SIDE OF LUGGAGE COMPT) VIO/BLU WIRE VIO/WHT WIRE VIO/YEL WIRE W/ MMI W/O MMI WAGON WHT WIRE YEL WIRE YEL/RED WIRE

Go to component -> Anti-theft circuit (1 of 2) -> NCA WIRE

nca wiring diagram (3 of 57)

Audi A4 B8 facelift (2011-2015) nca wiring diagram (3 of 57)

A/C COMPRESSOR REGULATOR VALVE A/C PRESSURE/ TEMPERATURE SENSOR (LEFT SIDE OF CONDENSER) AIR FLOW DOOR MOTOR (LEFT SIDE OF AIR INTAKE HOUSING) BLU/BLK WIRE BLU/BRN WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE LIGHT SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) BRN WIRE BRN/BLK WIRE BRN/YEL WIRE CENTER VENT ADJUSTMENT MOTOR (RIGHT SIDE OF A/C UNIT) CENTER VENT TEMPERATURE SENSOR CLIMATRONIC CONTROL MODULE COMPRESSOR MAGNETIC CLUTCH (2.0L) COMPUTER DATA LINES SYSTEM COOLANT RECIRCULATION PUMP DEFROSTER DOOR MOTOR (LEFT SIDE OF A/C UNIT) ENGINE COOLANT LEVEL (ECL) SENSOR EVAPORATOR VENT TEMPERATURE SENSOR (IN EVAPORATOR HOUSING) FOOTWELL DOOR MOTOR (LEFT SIDE OF A/C UNIT) FOOTWELL VENT TEMPERATURE SENSOR FUSE FUSE CARRIER 1 FUSE CARRIER 2 FUSE PANEL C (BEHIND LEFT END OF DASH) FUSE PANEL D (BEHIND RIGHT END OF DASH) GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED NCA WIRE ORG/BRN WIRE ORG/GRN WIRE OUTSIDE AIR TEMPERATURE SENSOR (BEHIND FRONT GRILLE) RECIRCULATION DOOR MOTOR (LEFT SIDE OF AIR INTAKE HOUSING) RED WIRE RED/BLU WIRE RED/YEL WIRE SUNLIGHT PHOTO SENSOR (UNDER CENTER OF DASH) TEMPERATURE REGULATOR DOOR MOTOR (LOWER LEFT SIDE OF A/C UNIT) VIO WIRE VIO/RED WIRE WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL/GRY WIRE

Go to component -> Automatic a/c circuit, basic (1 of 2) -> NCA WIRE

nca wiring diagram (4 of 57)

Audi A4 B8 facelift (2011-2015) nca wiring diagram (4 of 57)

2.0L 3.0L 3.0L 2.0L AFTER RUN COOLANT PUMP (3.0L) BATTERY JUMP BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLU WIRE BRN WIRE BRN/BLK WIRE CHARGE AIR COOLING PUMP CLIMATRONIC REFRIGERANT SHUT-OFF VALVE (2.0L) (ON REFRIGERANT TUBE) COMPUTER DATA LINES SYSTEM COOLANT FAN COOLANT FAN (FC) CONTROL MODULE (ON COOLANT FAN MOTORS) COOLANT FAN (FC) CONTROL MODULE 2 COOLANT FAN 2 ENGINE CONTROL MODULE (ECM) (2.OL: LEFT SIDE OF ENGINE COMPT PLENUM CHAMBER) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (LOWER LEFT REAR OF ENGINE) FRESH AIR BLOWER (UNDER RIGHT SIDE OF AIR INTAKE HOUSING) FRESH AIR BLOWER CONTROL MODULE (LOWER RIGHT SIDE OF AIR INTAKE HOUSING) FUSE FUSE 204 FUSE CARRIER 1 FUSE FUSE PANEL B (IN PLENUM CHAMBER ELECTRONICS BOX) GRN WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT W/ MOTRONIC ENGINE CONTROL MODULE (ECM) POWER SUPPLY RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT CLUSTER CONTROL MODULE NCA WIRE ORG/BLK WIRE ORG/BLU WIRE ORG/BRN WIRE RED WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE TERMINAL (MIDDLE OF ENGINE COMPT PLENUM CHAMBER) VIO WIRE WHT WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/RED WIRE

Go to component -> Automatic a/c circuit, basic (2 of 2) -> NCA WIRE

nca wiring diagram (5 of 57)

Audi A4 B8 facelift (2011-2015) nca wiring diagram (5 of 57)

AIR FLOW RIGHT FOOTWELL DOOR MOTOR DOOR MOTOR (LEFT SIDE OF AIR INTAKE HOUSING) BLU/BLK WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BRAKE LIGHT SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) BRN WIRE BRN/BLK WIRE CLIMATRONIC CONTROL MODULE COMPRESSOR MAGNETIC CLUTCH (2.0L) COMPUTER DATA LINES SYSTEM COOLANT RECIRCULATION PUMP DEFROSTER DOOR MOTOR (LEFT SIDE OF A/C UNIT) FUSE FUSE CARRIER 2 FUSE PANEL D (BEHIND RIGHT END OF DASH) GRN/BLU WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT CLUSTER CONTROL MODULE LEFT CENTER VENT MOTOR (UPPER LEFT SIDE OF A/C UNIT) LEFT FOOTWELL DOOR MOTOR (LEFT SIDE OF A/C UNIT) LEFT TEMPERATURE DOOR MOTOR (LEFT SIDE OF A/C UNIT) NCA WIRE ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE REAR TEMPERATURE DOOR MOTOR REAR TEMPERATURE SELECTION POTENTIOMETER (W/ ADDITIONAL LIGHTING EQUIPMENT) RECIRCULATION DOOR MOTOR (LEFT SIDE OF AIR INTAKE HOUSING) RED WIRE RED/BLU WIRE RED/YEL WIRE RIGHT CENTER VENT MOTOR (LEFT SIDE OF AIR INTAKE HOUSING) RIGHT TEMPERATURE DOOR MOTOR (TOP LEFT SIDE OF AIR INTAKE HOUSING) SUNLIGHT PHOTO SENSOR (UNDER CENTER OF DASH) VIO WIRE VIO/RED WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE

Go to component -> Automatic a/c circuit, comfort (1 of 3) -> NCA WIRE

nca wiring diagram (6 of 57)

Audi A4 B8 facelift (2011-2015) nca wiring diagram (6 of 57)

A/C PRESSURE/ TEMPERATURE SENSOR (LEFT SIDE OF CONDENSER) AUTOMATIC DIMMING INTERIOR REARVIEW MIRROR BLU/BRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM ENGINE COOLANT LEVEL (ECL) SENSOR EVAPORATOR VENT TEMPERATURE SENSOR (IN EVAPORATOR HOUSING) FRESH AIR BLOWER (UNDER RIGHT SIDE OF AIR INTAKE HOUSING) FRESH AIR BLOWER CONTROL MODULE (LOWER RIGHT SIDE OF AIR INTAKE HOUSING) FUSE FUSE CARRIER 1 FUSE PANEL C (BEHIND LEFT END OF DASH) GRN/BLU WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED HUMIDITY SENSOR LEFT FOOTWELL TEMPERATURE SENSOR (LEFT SIDE OF A/C UNIT) LEFT FRONT UPPER BODY VENT TEMPERATURE SENSOR NCA WIRE ORG/BRN WIRE ORG/GRN WIRE OUTSIDE AIR TEMPERATURE SENSOR RED/BLU WIRE RIGHT FOOTWELL TEMPERATURE SENSOR (LOWER RIGHT SIDE OF A/C UNIT) RIGHT FRONT UPPER BODY VENT TEMPERATURE SENSOR VEHICLE ELECTRICAL SYSTEM CONTROL MODULE (UNDER LEFT SIDE OF DASH) VIO WIRE VIO/YEL WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/RED WIRE YEL/GRY WIRE

Go to component -> Automatic a/c circuit, comfort (2 of 3) -> NCA WIRE

nca wiring diagram (7 of 57)

Audi A4 B8 facelift (2011-2015) nca wiring diagram (7 of 57)

2.0L 2.0L 3.0L 2.OL 3.0L 3.0L A/C COMPRESSOR REGULATOR VALVE (REAR OF A/C COMPRESSOR) AFTER RUN COOLANT PUMP (2.0L) (LOWER LEFT SIDE OF ENGINE) AFTER RUN COOLANT PUMP (3.0L) BATTERY JUMP BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLU WIRE BLU/BRN WIRE BRN WIRE BRN/BLK WIRE BRN/YEL WIRE CHARGE AIR COOLING PUMP (3.0L) CLIMATRONIC REFRIGERANT SHUT-OFF VALVE (2.0L) (ON REFRIGERANT TUBE) COMPUTER DATA LINES SYSTEM COOLANT FAN COOLANT FAN (FC) CONTROL MODULE (ON COOLANT FAN MOTORS) COOLANT FAN (FC) CONTROL MODULE 2 COOLANT FAN 2 ENGINE CONTROL MODULE (ECM) (2.0L: LEFT SIDE OF ENGINE COMPT PLENUM CHAMBER) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (LOWER LEFT REAR OF ENGINE) FUSE FUSE 204 FUSE CARRIER 1 FUSE PANEL B (IN PLENUM CHAMBER ELECTRONICS BOX) GRN WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT W/ MOTRONIC ENGINE CONTROL MODULE (ECM) POWER SUPPLY RELAY ENERGIZED NCA WIRE ORG/BLK WIRE ORG/BRN WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE TERMINAL (MIDDLE OF ENGINE COMPT PLENUM CHAMBER) VIO WIRE WHT WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/RED WIRE

Go to component -> Automatic a/c circuit, comfort (3 of 3) -> NCA WIRE

nca wiring diagram (8 of 57)

Audi A4 B8 facelift (2011-2015) nca wiring diagram (8 of 57)

ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM DEFOGGER SYSTEM BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMFORT SYSTEM CONTROL MODULE COMFORT SYSTEM CONTROL MODULE (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM, ANTI-THEFT SYSTEMS ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS SYSTEM POWER DISTRIBUTION SYSTEM ANTI-THEFT SYSTEM FUSE 10 FUSE 11 FUSE 8 FUSE CARRIER 2 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES INTERIOR LIGHTS SYSTEMS LEFT REAR WINDOW BREAKAGE SENSOR NCA WIRE ORG/BRN WIRE ORG/GRN WIRE POWER WINDOWS SYSTEM REAR WINDOW BREAKAGE SENSOR RED WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RELAY/FUSE PANEL F (RIGHT SIDE OF LUGGAGE COMPT) RIGHT REAR WINDOW BREAKAGE SENSOR SHIFT INTERLOCK SYSTEM SHIFT INTERLOCK SYSTEM POWER DISTRIBUTION SYSTEM TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO/BLU WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE

Go to component -> Comfort system central control module circuit -> NCA WIRE

nca wiring diagram (9 of 57)

Audi A4 B8 facelift (2011-2015) nca wiring diagram (9 of 57)

3.0L ABS CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ACTIVE STEERING CONTROL MODULE (AWD) (UNDER DRIVER'S FOOTWELL CARPET) ALL WHEEL DRIVE CONTROL MODULE (IN SPARE TIRE WELL) AUTOMATIC DAY/ NIGHT INTERIOR MIRROR BATTERY MONITORING CONTROL MODULE (ON NEGATIVE TERMINAL OF BATTERY) BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU/RED WIRE BRN WIRE DATA BUS ON BOARD DIAGNOSTIC INTERFACE (BEHIND RIGHT CENTER OF DASH) DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DIRECT SHIFT GEAR BOX DISTANCE REGULATION CONTROL MODULE (IF EQUIPPED) (RIGHT SIDE OF FRONT BUMPER) ESP SENSOR UNIT (AWD) (UNDER DRIVER'S SEAT) ESP SENSOR UNIT 2 (IF EQUIPPED) (UNDER DRIVER'S SEAT) FUSE FUSE CARRIER 1 FUSE CARRIER 2 FUSE PANEL D (BEHIND RIGHT END OF DASH) GENERATOR, VOLTAGE REGULATOR GRN/GRY WIRE GRN/VIO WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED LANE CHANGE ASSISTANCE CONTROL MODULE 2 (BEHIND LEFT SIDE OF REAR BUMPER) LEFT HEADLAMP ASSEMBLY MULTITRONIC W/O NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/GRY WIRE ORG/RED WIRE ORG/VIO WIRE ORG/WHT WIRE RED/YEL WIRE RIGHT HEADLAMP ASSEMBLY SOUND SYSTEMS TRANS- MISSION CONTROL MODULE (IN MECHA- TRONIC UNIT) VIO/BLU WIRE VIO/YEL WIRE VOLTAGE STABILIZER (W/ ENGINE START/ STOP SYSTEM) (IN SPARE TIRE WELL) W/ DIRECTIONAL STABILIZATION ASSISTANCE WHT/GRY WIRE

Go to component -> Computer data lines circuit (1 of 3) -> NCA WIRE

nca wiring diagram (10 of 57)

Audi A4 B8 facelift (2011-2015) nca wiring diagram (10 of 57)

AIR BAG CONTROL MODULE (BELOW CENTER CONSOLE) BLK WIRE BLU/GRN WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH CRUISE CONTROL SYSTEM DRIVER'S AIR BAG IGNITER DRIVER'S SIGNAL HORN AIR BAG ACTIVATION IGNITER 2 FUNCTION BUTTONS FUSE 12 FUSE 5 FUSE CARRIER 1 FUSE CARRIER 2 FUSE PANEL D (BEHIND RIGHT END OF DASH) HOT AT ALL TIMES HOT W/ POWER SUPPLY RELAY (TERMINAL 15) ENERGIZED IGNITION/ STARTER SWITCH LEFT MULTI- MODE MODE SWITCH MULTI-FUNCTION STEERING WHEEL CONTROL MODULE NCA WIRE ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE RED WIRE RED/WHT WIRE RIGHT MULTI-FUNCTION BUTTONS STEERING ANGLE SENSOR (BEHIND STEERING WHEEL CONTROL UNIT STEERING WHEEL VIBRATION MOTOR STEERING WHEEL) TIPTRONIC DOWNSHIFT BUTTON TIPTRONIC UPSHIFT BUTTON (IF EQUIPPED) TURN SIGNAL SWITCH W/ TIPTRONIC WHT WIRE WINDSHIELD WIPER/ INTERMITTENT YEL WIRE

Go to component -> Steering column electronic systems control module circuit -> NCA WIRE

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