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

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/BRN WIRE BLU/GRN WIRE BLU/GRY 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 LEFT FRONT WOOFER, MIDRANGE SPEAKER LEFT REAR WOOFER, MIDRANGE SPEAKER LEFT REAR WOOFER/ AMPLIFIER 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/VIO WIRE RED/YEL (OR WHT/YEL) WIRE RED/YEL WIRE RIGHT FREQUENCY CROSSOVER RIGHT FRONT WOOFER, MIDRANGE SPEAKER RIGHT REAR WOOFER, MIDRANGE SPEAKER TELEPHONE TRANSCEIVER 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

BLK WIRE BLK/BLU WIRE BLU WIRE BLU/GRY WIRE BRAKE LIGHT SWITCH BRN WIRE BRN/WHT WIRE FUSE 13 FUSE 31 FUSE PANEL (ON LEFT END OF DASH) GRN/GRY WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT IN RUN OR START MULTI-FUNCTION TRANSMISSION RANGE SWITCH RED/BLK WIRE RED/YEL WIRE SHIFT LOCK SOLENOID TRANSMISSION CONTROL MODULE (UNDER CARPET, FORWARD OF PASSENGER'S SEAT) TRANSMISSION RANGE SELECTOR LEVER DISPLAY

3-WAY RELAY CARRIER A/C SYSTEM ABS SYSTEM, TRANSMISSIONS SYSTEM, INSTRUMENT CLUSTER SYSTEM BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/GRY WIRE BRAKE LIGHT SWITCH (ABOVE BRAKE PEDAL, ON BRACKET) BRN WIRE BRN/GRN WIRE BRN/RED WIRE CLUTCH VACUUM VENT VALVE SWITCH (ABOVE CLUTCH, ON BRACKET) CRUISE CONTROL SYSTEM FUSE 13 FUSE 130 FUSE 7 FUSE PANEL GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/YEL WIRE GYR/YEL WIRE HEATED OXYGEN SENSOR 1 (RIGHT SIDE OF ENG, ON EXHAUST MANIFOLD) HEATED OXYGEN SENSOR 2 (BEHIND 3-WAY CATALYTIC CONVERTER) HOT AT ALL TIMES HOT IN START OR RUN M/T MASS AIRFLOW (MAF) SENSOR (INSIDE AIR CLEANER HOUSING) MICRO CENTER ELECTRONIC SECONDARY AIR INJECTION (AIR) PUMP RELAY MOTRONIC ENGINE CONTROL MODULE (NEAR BRAKE BOOSTER IN PROTECTIVE CASE) NCA WIRE RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE SECONDARY AIR INJECTION PUMP MOTOR (LOWER RIGHT FRONT CORNER OF ENG COMPT) THROTTLE POSITION (TP) SENSOR (ON THROTTLE BODY) VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE YEL/VIO 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

A/C SYSTEM BACK-UP LIGHT SWITCH BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BRAKE LIGHT SWITCH (ABOVE BRAKE PEDAL, ON BRACKET) BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE CLUTCH VACUUM VENT VALVE SWITCH (ABOVE CLUTCH PEDAL, ON BRACKET) CRUISE CONTROL SYSTEM FUSE 13 FUSE 7 FUSE PANEL FUSE 231 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/YEL WIRE GYR/YEL WIRE HEATED OXYGEN SENSOR 1 (BEHIND RIGHT CYLINDER HEAD, ON EXHAUST MANIFOLD) HEATED OXYGEN SENSOR 2 (BEHIND RIGHT CYLINDER HEAD, ON EXHAUST MANIFOLD) HOT AT ALL TIMES IGNITION SWITCH INSTRUMENT CLUSTER SYSTEM M/T MASS AIRFLOW (MAF) SENSOR (IN AIR CLEANER ASSEMBLY) MOTRONIC ENGINE CONTROL MODULE (NEAR BRAKE BOOSTER IN PROTECTIVE CASE) NCA WIRE OFF OXYGEN SENSOR 1 (BEHIND 3-WAY CATALYTIC CONVERTER) OXYGEN SENSOR 2 (BEHIND 3-WAY CATALYTIC CONVERTER) RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RUN WIRE THROTTLE POSITION (TP) SENSOR (ON THROTTLE BODY) VIO WIRE WHT WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE YEL/VIO WIRE

3-WAY RELAY CARRIER BLK WIRE BLK/BLU WIRE BLK/VIO WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE ENGINE SPEED (RPM) SENSOR (LEFT SIDE OF TRANSMISSION BELL HOUSING) FUSE 130 GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/WHT WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT CLUSTER COMBINATION PROCESSOR KNOCK SENSOR (KS) 1 (ON RIGHT SIDE OF ENG BLOCK, UNDER INTAKE MANIFOLD) KNOCK SENSOR (KS) 2 (ON LEFT SIDE OF ENG BLOCK, UNDER INTAKE MANIFOLD) LEAK DETECTION PUMP (LDP) (IN RIGHT REAR WHEELHOUSING, ABOVE PLASTIC LINER) MALFUNCTION INDICATOR LAMP (MIL) NCA WIRE PWR ACCEL ACTIVATION FAULT IND RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRN WIRE SECONDARY AIR INJECTION (AIR) PUMP RELAY VIO WIRE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE