Audi A4 B5 facelift (1999-2001) (behind left side of dash) Wiring diagrams

ALARM HORN ANTENNA AVANT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT (OR BRN/BLK) WIRE BRN/WHT WIRE BRN/YEL WIRE CLUTCH PEDAL POSITION SWITCH (M/T) DOOR LOCK SWITCH EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM FUSE FUSE PANEL (ON LEFT END OF DASH) FUSE GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/YEL WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT IN START, RUN IGNITION SWITCH INSTRUMENT CLUSTER KEY SWITCH LEFT DOOR WARNING LIGHT LUGGAGE COMPT LIGHT MULTI- FUNCTION TRANSMISSION SWITCH (A/T) NCA WIRE PARK/ NEUTRAL POSITION RELAY POWER WINDOWS SYSTEM POWER WINDOWS SYSTEM INTERIOR LIGHTS SYSTEM RADIO RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RIGHT DOOR WARNING LIGHT TAILGATE RELEASE SYSTEMS TRUNK LID ALARM SWITCH TRUNK LID RELEASE SWITCH VIO/BLU WIRE WARNING LIGHT CONTROL MODULE WHT WIRE WHT/BLU WIRE WITH REMOTE CONTROL YEL WIRE YEL/BLU WIRE YEL/RED WIRE

AUTO CHECK SYSTEM (PART OF INSTRUMENT CLUSTER) BLK WIRE BLK/RED WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/WHT WIRE BRN/YEL WIRE DRIVER'S DOOR CONTACT SWITCH DRIVER'S DOOR HANDLE ALARM SWITCH GRN WIRE GRN/BLU WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/WHT WIRE GRY/YEL WIRE HOOD ALARM SWITCH INSTRUMENT CLUSTER SYSTEM INTERIOR MONITOR SWITCH LEFT REAR BROKEN GLASS SENSOR LEFT REAR DOOR CONTACT SWITCH LEFT ULTRA- SOUND SENSOR PASSENGER'S DOOR CONTACT SWITCH PASSENGER'S DOOR HANDLE ALARM SWITCH REAR WINDOW DEFOGGER RED WIRE RED/BLU WIRE RED/BRN WIRE RIGHT REAR BROKEN GLASS SENSOR RIGHT REAR DOOR CONTACT SWITCH RIGHT ULTRA- SOUND SENSOR TRUNK LOCK ALARM SWITCH ULTRA SOUND SENSOR CONTROL MODULE (BELOW CENTER OF REAR SEAT) VIO WIRE W/ AUTO CHECK SYSTEM W/O AUTO CHECK SYSTEM WHT WIRE YEL 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

3 3 (AVANT) LEFT TAILLIGHT ASSEMBLY BACK- UP LIGHT 3 6 (AVANT) 4 3 (AVANT) 4 6 (AVANT) A/T BACK- UP LIGHT BACK-UP LIGHT SWITCH BLK WIRE BLU WIRE BRN WIRE FUSE 31 FUSE PANEL HOT IN ON OR START M/T RED WIRE RIGHT TAILLIGHT ASSEMBLY

A/C CONTROL HEAD ABS CONTROL MODULE BLK WIRE BLK/BLU WIRE BLU WIRE BRN WIRE DATA LINK CONNECTOR FUSE 12 FUSE 31 FUSE PANEL (ON LEFT END OF DASH) GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/RED WIRE HEADLIGHT LEVELING CONTROL MODULE (UNDER RIGHT SIDE OF REAR SEAT) HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT CLUSTER MOTRONIC ENGINE CONTROL MODULE (NEAR BRAKE BOOSTER IN PROTECTIVE CASE) MULTI-FUNTCION STEERING WHEEL CONTROL MODULE NAVIGTION CONTROL MODULE RADIO RED WIRE RED/BLK WIRE TRANS- MISSION CONTROL MODULE (UNDER CARPET, FORWARD OF PASS SEAT) VIO WIRE YEL WIRE

ANTENNA AMPLIFIER ANTI-THEFT SYSTEM (AVANT) BLK WIRE BLK/RED WIRE BRN WIRE DRIVER'S SIDE HEATED MIRROR FUSE FUSE PANEL (ON LEFT END OF DASH) HOT W/ LOAD REDUCTION RELAY ENERGIZED LEFT FREQUENCY CROSS- OVER NAVIGATION SYSTEM NCA WIRE PASSENGER'S SIDE HEATED MIRROR REAR WINDOW DEFOGGER REAR WINDOW DEFOGGER REAR WINDOW DEFOGGER/ ANTENNA REAR WINDOW DEFOGGER SWITCH REAR WINDOW DEFOGGER/ ANTENNA RED WIRE RIGHT FREQUENCY CROSS- OVER SOUND SYSTEM W/ WINDOW ANTENNA (AVANT) W/O WINDOW ANTENNA (AVANT) W/O WINDOW ANTENNA (EXCEPT AVANT) W/ WINDOW ANTENNA (EXCEPT AVANT) WHT WIRE YEL WIRE

13-WAY RELAY CARRIER (BEHIND LEFT SIDE OF DASH) 5 5 6 1 1 2 (AVANT) 6 2 (AVANT) AUTO CHECK SYSTEM (PART OF INSTRUMENT CLUSTER) AVANT BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BRAKE LIGHT SWITCH BRN WIRE COMBINATION PROCESSOR DAYTIME RUNNING LIGHTS SWITCH-ON RELAY EMERGENCY FLASHER SWITCH FUSE FUSE 2 FUSE FUSE FUSE PANEL (LEFT END OF DASH) FUSE GRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HEAD HEAD PARK HIGH MOUNT BRAKE LIGHT HOT AT ALL TIMES HOT IN RUN OR START HOT W/ LOAD REDUCTION RELAY ENERGIZED HOT W/ LOAD REDUCTION RELAY ENERGIZED HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM (WITH TRAILER OPTION) INTERIOR LIGHTS SYSTEM LEFT FRONT PARK/TURN LIGHT LEFT SIDE TURN SIGNAL LIGHT LEFT TAILLAMP ASSEMBLY 4 6 INSTRUMENT CLUSTER (AVANT) LEFT TURN IND PARK TURN LICENSE PLATE LIGHTS LIGHT SWITCH MICRO CENTRAL ELECTRIC OFF PARK REAR LIGHT CONTROL MODULE (ON 13-WAY RELAY CARRIER) RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT PARK/TURN LIGHT RIGHT SIDE TURN SIGNAL LIGHT RIGHT TAILLAMP ASSEMBLY 3 6 (AVANT) RIGHT TURN IND TURN TAIL STOP TAIL STOP TURN TURN PARK TURN SIGNAL SWITCH VIO WIRE WHT WIRE YEL WIRE

13-WAY RELAY CARRIER (BEHIND LEFT SIDE OF DASH) 5 5 6 1 1 2 (AVANT) 6 2 (AVANT) AVANT BLK WIRE BLK/GRN WIRE BLU WIRE BRAKE LIGHT SWITCH BRN WIRE COMBINATION PROCESSOR DAYTIME RUNNING LIGHTS SWITCH-ON RELAY EMERGENCY FLASHER SWITCH FUSE FUSE 2 FUSE FUSE FUSE PANEL (LEFT END OF DASH) FUSE PANEL (LEFT END OF DASH) FUSE GRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE GRY/YEL WIRE HEAD HEAD PARK HIGH MOUNT BRAKE LIGHT HOT AT ALL TIMES HOT W/ LOAD REDUCTION RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM (WITH TRAILER OPTION) LEFT FRONT PARK/TURN LIGHT LEFT RIGHT TURN IND TURN IND TURN LEFT SIDE TURN SIGNAL LIGHT LEFT TAILLAMP ASSEMBLY 4 6 (AVANT) LICENSE PLATE LIGHTS LIGHT SWITCH MICRO CENTRAL ELECTRIC OFF OFF PARK PARK RED WIRE RED/BLK WIRE RED/YEL WIRE RIGHT FRONT PARK/TURN LIGHT INSTRUMENT CLUSTER RIGHT SIDE TURN SIGNAL LIGHT RIGHT TAILLAMP ASSEMBLY 3 6 (AVANT) TAIL STOP TURN TURN PARK TURN SIGNAL SWITCH TURN TAIL STOP VIO WIRE VIO/BLU WIRE WHT WIRE YEL WIRE

5 5 6 1 1 2 (AVANT) 6 2 (AVANT) AUTO CHECK SYSTEM (PART OF INSTRUMENT CLUSTER) AVANT BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLU WIRE BRAKE LIGHT SWITCH BRN WIRE COMBINATION PROCESSOR EMERGENCY FLASHER SWITCH FUSE FUSE 2 FUSE FUSE FUSE PANEL (LEFT END OF DASH) FUSE GRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HEAD HEAD PARK HIGH MOUNT BRAKE LIGHT HOT AT ALL TIMES HOT AT ALL TIMES MICRO CENTRAL ELECTRIC HOT IN RUN OR START HOT W/ LOAD REDUCTION RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM (WITH TRAILER OPTION) LEFT FRONT PARK/TURN LIGHT LEFT SIDE TURN SIGNAL LIGHT LEFT TAILLAMP ASSEMBLY 4 6 INSTRUMENT CLUSTER (AVANT) LEFT TURN IND PARK TURN LICENSE PLATE LIGHTS LIGHT SWITCH OFF OFF PARK REAR LIGHT CONTROL MODULE (ON 13-WAY RELAY CARRIER) RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT PARK/TURN LIGHT RIGHT SIDE TURN SIGNAL LIGHT RIGHT TAILLAMP ASSEMBLY 3 6 (AVANT) RIGHT TURN IND TURN TAIL STOP TAIL STOP TURN TURN PARK TURN SIGNAL SWITCH VIO WIRE WHT WIRE YEL WIRE

5 5 6 1 1 2 (AVANT) 6 2 (AVANT) AVANT BLK WIRE BLK/GRN WIRE BLU WIRE BRAKE LIGHT SWITCH BRN WIRE COMBINATION PROCESSOR EMERGENCY FLASHER SWITCH FUSE FUSE 2 FUSE FUSE FUSE PANEL (LEFT END OF DASH) FUSE GRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE GRY/YEL WIRE HEAD HEAD PARK HIGH MOUNT BRAKE LIGHT HOT AT ALL TIMES HOT AT ALL TIMES MICRO CENTRAL ELECTRIC HOT W/ LOAD REDUCTION RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM (WITH TRAILER OPTION) LEFT FRONT PARK/TURN LIGHT LEFT RIGHT TURN IND TURN IND TURN LEFT SIDE TURN SIGNAL LIGHT LEFT TAILLAMP ASSEMBLY 4 6 (AVANT) LICENSE PLATE LIGHTS LIGHT SWITCH OFF OFF PARK PARK RED WIRE RED/BLK WIRE RED/YEL WIRE RIGHT FRONT PARK/TURN LIGHT INSTRUMENT CLUSTER RIGHT SIDE TURN SIGNAL LIGHT RIGHT TAILLAMP ASSEMBLY 3 6 (AVANT) TAIL STOP TURN TURN PARK TURN SIGNAL SWITCH TURN TAIL STOP VIO WIRE VIO/BLU WIRE WHT WIRE YEL WIRE