Audi A6 C4 (1994-1997) yel/red Wiring diagrams

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

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

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

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

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

ABS CONTROL MODULE ABS HYDRAULIC UNIT ABS IND. AIR BAG CONTROL MODULE AIR BAG MALFUNCTION IND. AIR CONDITIONING SYSTEM AUTO CHECK SYSTEM AUTO- CHECK CONTROL LIGHTS BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/RED WIRE BLU/YEL WIRE BRAKE FLUID LEVEL WARNING SWITCH BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/YEL WIRE CENTER CONSOLE LIGHT BOOSTER CLOCK CLOCK LIGHT CLOCK SET BUTTON CONNECTOR STATION 1 CONNECTOR STATION 2 CRUISE CONTROL SYSTEM (VEHICLE SPEED OUTPUT) DIMMER SWITCH DRIVER'S DOOR CONTACT SWITCH DRIVER'S SEAT BELT SWITCH ELECTRONIC ENGINE COOLANT TEMPERATURE (ECT) THERMAL SWITCH ELECTRONIC VOICE CHECK BUTTON ENGINE CONTROL MODULE (ECM) ENGINE COOLANT LEVEL (ELC) WARNING SWITCH ENGINE OIL TEMPERATURE SENSOR FUEL GAUGE FUEL LEVEL SENSOR FUSE 15 FUSE 7 FUSE 8 FUSE PANEL GEN IND. GENER- ATOR GRN WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/YEL WIRE HEADLIGHTS SYSTEM HI-BEAM IND HOT AT ALL TIMES HOT IN RUN OR ACC HOT W/ PARK OR HEADLIGHTS ON IGNITION SWITCH ILLUM. LIGHTS INSTRUMENT CLUSTER INSTRUMENT CLUSTER COMBINATION PROCESSOR KEY SWITCH LEFT BRAKE PAD WEAR INDICATOR ELEMENT LEFT TURN IND LEFT TURN LIGHTS NCA WIRE OIL PRESSURE SWITCH PARK BRAKE IND PARKING BRAKE WARNING LIGHT SWITCH RADIO REAR LAMP CONTROL MODULE 9 3 RED WIRE RED/BLU WIRE RED/GRN WIRE RIGHT BRAKE PAD WEAR INDICATOR ELEMENT RIGHT TURN IND RIGHT TURN LIGHTS SPEED- OMETER TACH- OMETER TEMP GAUGE TRIP ODOMETER RESET SWITCH VEHICLE SPEED SENSOR VIO WIRE VIO/BLK WIRE VOLTAGE STABILIZER WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/YEL WIRE WINDSHIELD WASHER FLUID LEVEL SWITCH YEL WIRE YEL/RED WIRE

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

#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

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

#1 #2 #3 #4 #5 #6 1 2 3 4 5 6 7 8 9 SHIELD A/C CONTROL HEAD ABS CONTROL MODULE AUXILIARY RELAY PANEL 3 BAT(30) BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY 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 SECONDARY AIR INJECTION SOLENOID VALVE ELECTRONIC BOX EVAPORATIVE EMISSION CANISTER PURGE REGULATOR VALVE EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VALVE FUEL INJECTORS FUEL PUMP FUEL PUMP RELAY FUEL SYSTEM DIAGNOSTIC PUMP FUSE 130 FUSE 72 FUSE 73 FUSE BLOCK FUSE 14 FUSE BLOCK FUSE 17 GRN WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HOT IN ON OR START IDLE AIR CONTROL VALVE IGN(15) MAL- FUNCTION INDICATOR LAMP (MIL) 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 SECONDARY AIR INJECTION PUMP MOTOR SECONDARY AIR INJECTION PUMP RELAY TRANSMISSION CONTROL MODULE VIO WIRE VIO/BLK WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/RED WIRE YEL/WHT WIRE