Audi A4 B5 facelift (1999-2001) gry/blu Wiring diagrams

1 2 3 4 5 6 7 8 9 10 (NAVIGATION ONLY) ANTENNA AMPLIFIER ANTI-THEFT SYSTEM AUTO CHECK SYSTEM BLK WIRE BLK/RED WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/GRY WIRE COMBINATION PROCESSOR COMPUTER DATA LINES SYSTEM FUSE 37 FUSE 5 FUSE PANEL (ON LEFT END OF DASH) GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER LEFT FREQUENCY CROSSOVER LEFT FRONT SPEAKER LEFT FRONT WOOFER, MIDRANGE SPEAKER LEFT REAR MIDRANGE SPEAKER LEFT REAR WOOFER MULTIFUNCTION STEERING WHEEL CONTROL MODULE NAVIGATION CONTROL MODULE (IF EQUIPPED) NCA WIRE RADIO REAR WINDOW DEFOGGER SWITCH REAR WINDOW DEFOGGER/ WINDOW ANTENNA (W/ CONCERT RADIO) REAR WINDOW DEFOGGER/ WINDOW ANTENNA (W/ SYMPHONY RADIO) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/YEL (OR WHT/YEL) WIRE RED/YEL WIRE RIGHT FRONT SPEAKER RIGHT FRONT WOOFER, MIDRANGE SPEAKER RIGHT REAR MIDRANGE SPEAKER RIGHT REAR WOOFER RIGHT REAR WOOFER/ AMPLIFIER TELEPHONE TRANSCEIVER TV ANTENNA AMPLIFIER 1 TV ANTENNA AMPLIFIER 2 TV ANTENNA AMPLIFIER 3 TV ANTENNA AMPLIFIER 4 VIO/GRY WIRE W/ AUTO CHECK SYSTEM W/ CONCERT RADIO W/ SYMPHONY RADIO WHT WIRE WHT/BLU WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 (NAVIGATION ONLY) ANTENNA ANTI-THEFT SYSTEM AUTO CHECK SYSTEM BLK WIRE BLK/RED WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE COMBINATION PROCESSOR COMPUTER DATA LINES SYSTEM FUSE 37 FUSE 5 FUSE PANEL (ON LEFT END OF DASH) GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER LEFT FREQUENCY CROSSOVER LEFT FRONT SPEAKER LEFT FRONT WOOFER, MIDRANGE SPEAKER LEFT REAR MIDRANGE SPEAKER MULTIFUNCTION STEERING WHEEL CONTROL MODULE NAVIGATION CONTROL MODULE (IF EQUIPPED) NCA WIRE RADIO REAR WINDOW DEFOGGER SWITCH REAR WINDOW DEFOGGER/ WINDOW ANTENNA (W/ SYMPHONY RADIO) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL (OR WHT/YEL) WIRE RED/YEL WIRE RIGHT FREQUENCY CROSSOVER RIGHT FRONT SPEAKER RIGHT FRONT WOOFER, MIDRANGE SPEAKER RIGHT REAR MIDRANGE SPEAKER RIGHT REAR WOOFER/ AMPLIFIER TELEPHONE TRANSCEIVER TV ANTENNA AMPLIFIER 2 TV ANTENNA AMPLIFIER 3 TV ANTENNA AMPLIFIER 4 VIO/GRY WIRE W/ AUTO CHECK SYSTEM W/ SYMPHONY RADIO WHT WIRE WHT/BLU WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 (NAVIGATION ONLY) ANTENNA AMPLIFIER ANTI-THEFT SYSTEM AUTO CHECK SYSTEM BLK WIRE BLK/RED WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/RED WIRE CD CHANGER UNIT COMBINATION PROCESSOR COMPUTER DATA LINES SYSTEM FUSE 37 FUSE 5 FUSE PANEL (ON LEFT END OF DASH) GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER LEFT FREQUENCY CROSSOVER TELEPHONE TRANSCEIVER LEFT FRONT MIDRANGE SPEAKER LEFT FRONT WOOFER LEFT REAR MIDRANGE, WOOFER SPEAKERS MULTIFUNCTION STEERING WHEEL CONTROL MODULE NAVIGATION CONTROL MODULE (IF EQUIPPED) NCA WIRE RADIO REAR WINDOW DEFOGGER SWITCH REAR WINDOW DEFOGGER/ WINDOW ANTENNA (W/ CONCERT RADIO) REAR WINDOW DEFOGGER/ WINDOW ANTENNA (W/ SYMPHONY RADIO) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL (OR WHT/YEL) WIRE RED/YEL WIRE RIGHT FRONT MIDRANGE SPEAKER RIGHT FRONT WOOFER RIGHT REAR WOOFER, MIDRANGE SPEAKERS TV ANTENNA AMPLIFIER 1 TV ANTENNA AMPLIFIER 2 TV ANTENNA AMPLIFIER 3 TV ANTENNA AMPLIFIER 4 VIO WIRE VIO/GRY WIRE W/ AUTO CHECK SYSTEM W/ CONCERT RADIO W/ SYMPHONY RADIO WHT WIRE WHT/BLU WIRE YEL WIRE

* - INFORMATION NOT AVAILABLE 8-WAY RELAY CARRIER ABS CONTROL MODULE ABS RETURN FLOW PUMP ABS RETURN FLOW PUMP RELAY ABS SOLENOID VALVE RELAY ABS/EDL HYDRAULIC UNIT (BELOW LEFT SIDE OF REAR SEAT) ANTI-SLIP CONTROL SWITCH BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BRAKE LIGHT SWITCH BRN WIRE BRN/GRN WIRE BRN/RED WIRE COMBINATION PROCESSOR DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) FUSE 13 FUSE 53 FUSE 7 FUSE PANEL FWD ONLY GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/RED WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT CLUSTER LEFT FRONT ABS INLET VALVE LEFT FRONT ABS OUTLET VALVE LEFT FRONT ABS WHEEL SPEED SENSOR LEFT FRONT BRAKE PAD WEAR SENSOR LEFT FRONT TRACTION CONTROL OUTLET VALVE LEFT FRONT TRACTION CONTROL SWITCH-OVER VALVE LEFT REAR ABS INLET VALVE LEFT REAR ABS OUTLET VALVE LEFT REAR ABS WHEEL SPEED SENSOR MOTRONIC ENGINE CONTROL MODULE (NEAR BRAKE BOOSTER IN PROTECTIVE CASE) RED WIRE RED/BLK WIRE RED/BRN WIRE RED/YEL WIRE RIGHT FRONT ABS INLET VALVE RIGHT FRONT ABS OUTLET VALVE RIGHT FRONT ABS WHEEL SPEED SENSOR RIGHT FRONT BRAKE PAD WEAR SENSOR RIGHT FRONT TRACTION CONTROL OUTLET VALVE RIGHT FRONT TRACTION CONTROL SWITCH-OVER VALVE RIGHT REAR ABS INLET VALVE RIGHT REAR ABS OUTLET VALVE RIGHT REAR ABS WHEEL SPEED SENSOR TRACTION CONTROL IND TRANSMISSION CONTROL MODULE (UNDER CARPET, FORWARD OF PASSENGER'S SEAT) VIO/BLK WIRE W/ ANTI-SLIP CONTROL W/ ANTI-SLIP CONTROL OR QUATTRO W/ ANTI-SLIP CONTROL FWD ONLY W/ ANTI-SLIP CONTROL W/ ANTI-SLIP CONTROL WHT WIRE WHT/BLK WIRE WHT/BRN WIRE YEL WIRE YEL/BLU WIRE YEL/RED WIRE

AUTO CHECK SYSTEM BLK WIRE BLK/RED WIRE BLU WIRE BLU/YEL WIRE BOARD COMPUTER FUNCTION SELECTOR SWITCH BRAKE- LIGHT SWITCH (ABOVE BRAKE PEDAL, ABOVE BRACKET) BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE FUSE 13 FUSE 5 FUSE PANEL GRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN START OR RUN INSTRUMENT CLUSTER LEFT REAR DOOR CONTACT SWITCH NAVIGATION CONTROL MODULE PASSENGER'S SIDE DOOR CONTACT SWITCH RADIO REAR LIGHT CONTROL MODULE (ON 13-FOLD RELAY CARRIER, POSITIONS 4, 5) RED WIRE RED/BLK WIRE RED/BRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR DOOR CONTACT SWITCH TRIP COMPUTER FUNCTION SELECT SWITCH TRIP COMPUTER RESET BUTTON WASHER FLUID LEVEL WARNING SWITCH WHT/BRN WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/WHT WIRE

A/C CONTROL HEAD BLK/BLU WIRE BLK/GRY WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/ BLK WIRE BLU/VIO WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CENTER OUTLET TEMPERATURE SENDER (BEHIND LOWER CENTER OF DASH, ON HVAC UNIT) FLOOR OUTLET TEMPERATURE SENDER (BEHIND LOWER LEFT CENTER OF DASH, ON HVAC UNIT) FUSE 225 FUSE 3 FUSE 5 FUSE PANEL (ON LEFT END OF DASH) GRN GRY/ WIRE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRN WIRE GRN/RED WIRE GRN/VIO WIRE GRY WIRE GRY/ GRN WIRE GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HOT IN RUN OR START HOT W/LIGHT SWITCH IN PARK OR HEAD POSITION HOT W/LOAD REDUCTION RELAY ENERGIZED INSTRUMENT CLUSTER MOTRONIC ENGINE CONTROL MODULE (ECM) (NEAR BRAKE BOOSTER, IN PROTECTIVE CASE) RED/ BLK WIRE RED/YEL WIRE SOLID STATE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/WHT WIRE

A/C CONTROL HEAD ABS CONTROL MODULE (LEFT FRONT CORNER OF ENG COMPT) AIR BAG ABS WARNING MIL AIR BAG CTRL MODULE ANTI- THEFT WARN OIL PRESS WARN BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/YEL WIRE BRAKE FLUID LEVEL WARNING SWITCH BRAKE PAD WEAR IND SEAT BELT IND BRAKE SYSTEM WARN WASHER FLUID LEVEL BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLANT FUEL RESERVE WARN LEVEL/ TEMP WARN DRIVER'S SEAT BELT SWITCH ECT GAUGE EMERGENCY FLASHER RELAY ENGINE COOLANT LEVEL WARNING ENGINE COOLANT TEMPERATURE SENSOR FUEL GAUGE CLOCK FUEL LEVEL SENSOR FUSE 15 FUSE 18 FUSE 5 FUSE PANEL GEN WARN IND GENERATOR GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/RED WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HEADLIGHT LEVELING CONTROL MODULE HEADLIGHTS SYSTEM HIGH BEAM IND HOT AT ALL TIMES HOT AT ALL TIMES IGNITION SWITCH HOT IN RUN OR START HOT WITH HIGH BEAMS ON IGNITION SWITCH INSTRUMENT CLUSTER KEY SWITCH LEFT FRONT BRAKE PAD WEAR SENSOR LEFT TURN IND LOCK OFF MIL INDICATOR MOTRONIC ENGINE CONTROL MODULE (NEAR BRAKE BOOSTER) NAVIGATION CONTROL MODULE OIL LEVEL THERMAL SENSOR OIL TEMP GAUGE PANEL DIMMER PARK BRAKE IND PARK BRAKE SWITCH PARK LIGHT IND ANTI-THEFT IMOBILIZER IND PWR ACCEL WARN IND RADIO RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RIGHT FRONT BRAKE PAD WEAR SENSOR RIGHT HIGH BEAM HEADLIGHT RIGHT TURN IND RUN WIRE SPEEDOMETER SWITCH (BOTTOM OF RESERVOIR) TACHOMETER TRACTION CONT IND TRAILER OPERATION IND TRANSMISSION CONTROL MODULE TURN SIGNAL SWITCH VEHICLE SPEED SENSOR VIO WIRE VIO/BLK WIRE VOLTS METER W/ ASC WARNING BUZZER WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/YEL WIRE WIPER/WASHER INTERMITTENT RELAY (CENTRAL ELECTRIC PANEL) YEL WIRE YEL/BRN WIRE YEL/RED WIRE

AUTO CHECK SYSTEM BLK WIRE BLK/RED WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BOARD COMPUTER FUNCTION SELECTOR SWITCH BRN WIRE COMBINATION PROCESSOR COMPUTER DATA LINES SYSTEM FUSE 15 FUSE 31 FUSE 5 FUSE PANEL GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER M/T A/T NAVIGATION CONTROL MODULE NAVIGATION SYSTEM ANTENNA NCA WIRE RADIO RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE TELEPHONE TRANSCEIVER VIO/GRY WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE

BLK WIRE BLK/RED WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE CHARGE AIR PRESSURE SENSOR ENGINE COOLANT TEMPERATURE (ECT) SENSOR (REAR OF CYLINDER, ON COOLANT FLANGE) ENGINE SPEED (RPM) SENSOR (LEFT SIDE OF ENG, NEAR OIL FILTER) FUSE 229 FUSE PANEL GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE IDLE AIR CONTROL CUT-OFF VALVE INSTRUMENT CLUSTER INTAKE AIR TEMPERATURE SENSOR (ON INTAKE MANIFOLD) KNOCK SENSOR (KS) 1 (LEFT FRONT OF ENG BLOCK) KNOCK SENSOR (KS) 2 (LEFT REAR OF ENG BLOCK) LEAK DETECTION PUMP (LDP) (INSIDE RIGHT REAR WHEELHOUSING) MALFUNCTION INDICATOR LAMP MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY NCA WIRE RED WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

ANTI-LOCK BRAKES SYSTEM BATTERY BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM EMERGENCY FLASHER SWITCH, AIR BAG CONTROL MODULE FUEL INJECTORS FUEL PUMP (IN FUEL TANK) FUEL PUMP RELAY FUSE 228 FUSE 234 FUSE PANEL FUSE 232 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE HOT IN START OR RUN MICRO CENTRAL ELECTRIC MOTRONIC ENGINE CONTROL MODULE (NEAR BRAKE BOOSTER, IN PROTECTICE CASE) NCA WIRE RED WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE THROTTLE VALVE CONTROL MODULE (LEFT SIDE OF ENG, ON INTAKE MANIFOLD) TO SPARK PLUG VIO WIRE VIO/BLU WIRE VIO/RED WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE YEL/VIO WIRE YEL/WHT WIRE