Home ReviewsRefund

Audi A6 C4 (1994-1997) nca Wiring diagrams

This page contains all the electrical diagrams for the component. nca, in which he is found in the car Audi A6 C4 (1994-1997). 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..

Wiring diagram nca (1 of 22)

Wiring diagram nca for Audi A6 C4 (1994-1997) (1 of 22)
Get lifetime access to Audi A6 C4 (1994-1997)

ABS CONTROL MODULE (BELOW LEFT REAR SEAT) ABS HYDRAULIC UNIT (LEFT FIREWALL) ABS RETURN FLOW PUMP ABS RETURN FLOW PUMP RELAY ABS SOLENOID RELAY ABS WARNING BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BRAKE LAMP SWITCH BRN WIRE BRN/YEL WIRE CENTRAL ELECTRIC PANEL DATA LINK CONNECTOR DIFFERENTIAL LOCK VALVES ELECTRONIC DIFFERENTIAL LOCK CUT- OUT RELAY FL ABS SOLENOID VALVES FUSE 15 FUSE 21 FUSE 9 FUSE PANEL GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IND INSTRUMENT CLUSTER LEFT FRONT WHEEL SENSOR NCA WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT FRONT WHEEL SENSOR LEFT REAR WHEEL SENSOR RIGHT REAR WHEEL SENSOR SPEEDOMETER TRANSMISSION CONTROL MODULE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/RED WIRE

Go to component -> Abs wiring diagram (1995 a6 circuit, fwd with differential lock with differential locks) -> NCA WIRE

Wiring diagram nca (2 of 22)

Wiring diagram nca for Audi A6 C4 (1994-1997) (2 of 22)
Get lifetime access to Audi A6 C4 (1994-1997)

ABS CONTROL MODULE (BELOW LEFT REAR SEAT) ABS HYDRAULIC UNIT (LEFT FIREWALL) ABS RETURN FLOW PUMP ABS RETURN FLOW PUMP RELAY ABS SOLENOID RELAY ABS WARNING BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BRAKE LAMP SWITCH BRN WIRE BRN/YEL WIRE CENTRAL ELECTRIC PANEL DATA LINK CONNECTOR FL ABS SOLENOID VALVES FUSE 15 FUSE 21 FUSE 9 FUSE PANEL GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IND INSTRUMENT CLUSTER LEFT FRONT WHEEL SENSOR NCA WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT FRONT WHEEL SENSOR LEFT REAR WHEEL SENSOR RIGHT REAR WHEEL SENSOR WHT WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

Go to component -> Abs wiring diagram (1995 a6 circuit, fwd without differential lock without differential locks) -> NCA WIRE

Wiring diagram nca (3 of 22)

Wiring diagram nca for Audi A6 C4 (1994-1997) (3 of 22)
Get lifetime access to Audi A6 C4 (1994-1997)

ABS CONTROL MODULE (BELOW LEFT REAR SEAT) ABS HYDRAULIC UNIT (LEFT FIREWALL) ABS RETURN FLOW PUMP ABS RETURN FLOW PUMP RELAY ABS SOLENOID RELAY ABS WARNING BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BRAKE LAMP SWITCH BRN WIRE BRN/BLK WIRE BRN/YEL WIRE CENTRAL ELECTRIC PANEL DATA LINK CONNECTOR (ON AUXILIARY RELAY PANEL 1) DIFFERENTIAL LOCK CONTROL MODULE DIFFERENTIAL LOCK SWITCH DISPLAY UNIT FR ABS SOLENOID VALVES FUSE 14 FUSE 15 FUSE 21 FUSE 9 FUSE PANEL GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRY WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IND INSTRUMENT CLUSTER LEFT FRONT WHEEL SENSOR LEFT REAR WHEEL SENSOR NCA WIRE REAR DIFF LOCK IND REAR DIFFERENTIAL LOCK SWITCH RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT WHEEL SENSOR SPEEDOMETER VIO/BLK WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

Go to component -> Anti-lock brakes circuit, quattro -> NCA WIRE

Wiring diagram nca (4 of 22)

Wiring diagram nca for Audi A6 C4 (1994-1997) (4 of 22)
Get lifetime access to Audi A6 C4 (1994-1997)

A/T ONLY ALARM HORN AUXILIARY RELAY PANEL 1 BACK-UP LIGHTS BATTERY BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CENTRAL ELECTRIC PANEL (LEFT OF STEERING COLUMN) CENTRAL LOCKING/ ALARM SYSTEM/ INTERIOR LIGHT DELAY CONTROL MODULE CIRCUIT BREAKER 85 DOOR LOCK SWITCH DRIVER DOOR HANDLE ALARM SWITCH PASSENGER DOOR HANDLE ALARM SWITCH EMERGENCY FLASHER ENGINE CONTROL MODULE FOOTWELL LIGHTS FRONT INTERIOR LIGHT FUSE FUSE (BEHIND LEFT SIDE OF I/P) FUSE PANEL GRN WIRE GRN/BLU WIRE GRY WIRE HAZARD/ TURN LIGHTS HOOD SWITCH HOT AT ALL TIMES HOT IN RUN OR ACC IGNITION SWITCH KEY SWITCH OFF ON MULTI- FUNCTION SWITCH (ON TRANS- MISSION) NCA WIRE PARK/ NEUTRAL POSITION RELAY POWER WINDOW CONTROL MODULE POWER WINDOW CONTROL UNIT RADIO RED WIRE RED/BRN WIRE RED/GRY WIRE SEAT BELT WARNING CONTROL MODULE SHIFT LOCK CONTROL MODULE STARTER TRUNK LIGHT TRUNK LIGHT SWITCH TRUNK LOCK ALARM SWITCH WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/RED WIRE

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

Wiring diagram nca (5 of 22)

Wiring diagram nca for Audi A6 C4 (1994-1997) (5 of 22)
Get lifetime access to Audi A6 C4 (1994-1997)

BLK WIRE BLU WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE GRN WIRE LEFT CENTRAL LOCKING SYSTEM SENSOR LEFT FRONT DOOR CONTACT SWITCH LEFT REAR DOOR CONTACT SWITCH MEMORY PROGRAM SWITCH MEMORY SEAT CONTROL MODULE NCA WIRE POWER WINDOW CONTROL MODULE RED WIRE RIGHT CENTRAL LOCKING SYSTEM SENSOR RIGHT FRONT DOOR CONTACT SWITCH RIGHT REAR DOOR CONTACT SWITCH SUNROOF MOTOR WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/RED WIRE

Go to component -> Anti-theft & central locking circuit (2 of 2) -> NCA WIRE

Wiring diagram nca (6 of 22)

Wiring diagram nca for Audi A6 C4 (1994-1997) (6 of 22)
Get lifetime access to Audi A6 C4 (1994-1997)

A/C CONTROL HEAD OUTSIDE AIR TEMP. DISPLAY A/T A/T ONLY BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRAKE LIGHT SWITCH BRAKE VACUUM VENT VALVE SWITCH BRN WIRE CLUTCH VACUUM VENT VALVE SWITCH CONNECTOR STATION 1 CRUISE CONTROL MODULE CRUISE CONTROL SWITCH CRUISE CONTROL VACUUM PUMP FUSE FUSE PANEL GRN WIRE GRN/BLU WIRE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT CLUSTER M/T M/T ONLY NCA WIRE RADIO RED WIRE RED/GRN WIRE SERVOTRONIC CONTROL MODULE SPEEDO- METER VEHICLE SPEED OUTPUT TEST CONNECTOR (NEAR CRUISE CONTROL MODULE) TRANSMISSION CONTROL MODULE VIO WIRE WHT WIRE WHT/BLU WIRE YEL WIRE

Go to component -> Cruise control circuit -> NCA WIRE

Wiring diagram nca (7 of 22)

Wiring diagram nca for Audi A6 C4 (1994-1997) (7 of 22)
Get lifetime access to Audi A6 C4 (1994-1997)

BAT(30) BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR CENTRAL ELECTRIC PANEL CLOSED THROTTLE POSITION SWITCH/ THROTTLE POSITION SENSOR CRANKSHAFT POSITION SENSOR DATA LINK CONNECTOR (BEHIND CONSOLE) DATA LINK CONNECTOR (RAPID DATA TRANSFER) EGR TEMPERATURE SENSOR ELECTRONIC BOX FUSE 103 ENGINE COOLANT TEMPERATURE SENSOR ENGINE SPEED SENSOR GRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/RED WIRE GRY/YEL WIRE IGN (15) IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 INSTRUMENT CLUSTER INSTRUMENT CLUSTER COMBINATION PROCESSOR INTAKE MANIFOLD CHANGE-OVER VALVE KNOCK SENSOR #1 (RIGHT I/P) KNOCK SENSOR #2 MASS AIR FLOW SENSOR MFI ENGINE CONTROL MODULE NCA WIRE OXYGEN SENSOR 2 OXYGEN SENSOR 1 POWER OUTPUT STAGE RED WIRE RED/BLK WIRE SHIELD 1 2 3 4 5 6 7 SOLID STATE SPARK PLUGS 1, 6 SPARK PLUGS 2, 4 SPARK PLUGS 3, 5 SPEEDO- METER VEHICLE SPEED SENSOR SPEEDOMETER TACHOMETER VIO WIRE WHT WIRE YEL WIRE YEL/GRN WIRE YEL/RED WIRE YEL/WHT WIRE

Go to component -> Wiring diagram engine performance 2.8l, wiring diagram (a6 2.8l circuit early production 1 of 2) -> NCA WIRE

Wiring diagram nca (8 of 22)

Wiring diagram nca for Audi A6 C4 (1994-1997) (8 of 22)
Get lifetime access to Audi A6 C4 (1994-1997)

#5 #4 #3 #2 #1 ABS CONTROL MODULE BAT(30) BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/RED WIRE BLU/VIO WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CENTRAL ELECTRIC PANEL COMPUTER DISPLAY UNIT DTI EGR VACUUM REGULATOR SOLENOID VALVE ELECTRONIC BOX EVAPORATIVE EMISSION CANISTER PURGE REGULATOR VALVE EVAPORATIVE EMISSION SENSOR FUEL INJECTORS FUEL PUMP FUEL PUMP RELAY FUSE 72 FUSE 73 FUSE BLOCK FUSE 17 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT IN ON OR START FUSE BLOCK FUSE 14 IDLE AIR CONTROL VALVE IGN(15) MAL- FUNCTION INDICATOR LAMP (MIL) A/C CONTROL HEAD MFI ENGINE CONTROL MODULE NCA WIRE OXYGEN SENSOR 1 HEATER OXYGEN SENSOR 1 HEATER, B/H TWC OXYGEN SENSOR 1, B/H TWC OXYGEN SENSOR 2 HEATER OXYGEN SENSOR 2 HEATER, B/H TWC OXYGEN SENSOR 2, B/H TWC RED WIRE SHIELD 1 2 3 4 5 6 7 VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/RED WIRE YEL/WHT WIRE

Go to component -> Wiring diagram engine performance 2.8l, wiring diagram (a6 2.8l circuit early production 2 of 2) -> NCA WIRE

Wiring diagram nca (9 of 22)

Wiring diagram nca for Audi A6 C4 (1994-1997) (9 of 22)
Get lifetime access to Audi A6 C4 (1994-1997)

1 2 3 4 5 6 7 8 9 SHIELD BAT(30) BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE CAMSHAFT POSITION SENSOR CENTRAL ELECTRIC PANEL CLOSED THROTTLE POSITION SWITCH/ THROTTLE POSITION SENSOR CRANKSHAFT POSITION SENSOR DATA LINK CONNECTOR (BEHIND CONSOLE) DATA LINK CONNECTOR (RAPID DATA TRANSFER) EGR TEMPERATURE SENSOR ELECTRONIC BOX FUSE 103 ENGINE COOLANT TEMPERATURE SENSOR ENGINE SPEED SENSOR GRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/RED WIRE GRY/YEL WIRE IGN (15) IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 INSTRUMENT CLUSTER INSTRUMENT CLUSTER COMBINATION PROCESSOR INTAKE CHANGE- OVER VALVE KNOCK SENSOR #1 (RIGHT I/P) KNOCK SENSOR #2 MASS AIR FLOW SENSOR MFI ENGINE CONTROL MODULE NCA WIRE OXYGEN SENSOR 1 OXYGEN SENSOR 2 POWER OUTPUT STAGE RED WIRE RED/BLK WIRE SOLID STATE SPARK PLUGS 1, 6 SPARK PLUGS 2, 4 SPARK PLUGS 3, 5 SPEEDO- METER VEHICLE SPEED SENSOR SPEEDOMETER TACHOMETER TRANSMISSION CONTROL MODULE (W/ A/T) VIO WIRE VIO/BLK WIRE WHT WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/RED WIRE YEL/WHT WIRE

Go to component -> Wiring diagram engine performance 2.8l, wiring diagram (a6 2.8l circuit late production 1 of 2) -> NCA WIRE

Wiring diagram nca (10 of 22)

Wiring diagram nca for Audi A6 C4 (1994-1997) (10 of 22)
Get lifetime access to Audi A6 C4 (1994-1997)

BLK WIRE BLU WIRE BRN WIRE DRIVER SIDE HEATED MIRROR LEFT ANTENNA AMPLIFIER FUSE FUSE PANEL GRY WIRE HOT IN RUN OR ACC ILLUM. REAR DEFOGGER SWITCH NCA WIRE ON IND. PASS. SIDE HEATED MIRROR RADIO REAR FOG LIGHT SWITCH REAR WINDOW DEFOGGER SWITCH REAR WINDOW DEFOGGER W/ WINDOW ANTENNA RED WIRE RIGHT ANTENNA AMPLIFIER SOLID STATE WHT WIRE YEL WIRE

Go to component -> With antenna amplifier circuit -> NCA WIRE

Page 1 of 3
1 2 3

Acura Alfa Romeo Audi BMW Buick Cadillac Chevrolet Chrysler Daewoo Dodge Eagle FIAT Ford Genesis Geo GMC Honda Hummer Hyundai Infiniti Isuzu Jaguar Jeep Kia Land Rover Lexus Lincoln Mazda Mercedes-Benz Mercury MINI Mitsubishi Nissan Oldsmobile Plymouth Pontiac Porsche RAM Saab Saturn Scion Smart Subaru Suzuki Toyota Volkswagen Volvo

Reviews about us

How to place an order? How to process a refund?

Privacy Policy

8 The Green STE A, Dover, DE 19901 US

AUTOMOTIVE ELECTRICIANS PORTAL LLC

© 2025 DIAGNOSTDATA