Audi A4 B7 (2004-2009) computer data lines system Wiring diagrams

2.0L 3.2L 4.2L 4.2L 2.0L 4.2L 2.0L 2 1 BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) EXCEPT CONVERTIBLE FUSE 31 FUSE 5 FUSE HOLDER GRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ ECM RELAY ENERGIZED AUTOMATIC TRANSMISSION AFTER-RUN FUSE FUSE 286 IGNITION/ STARTER SWITCH INSTRUMENT CLUSTER LOCK OFF ORG/BLK WIRE ORG/BRN WIRE PARK/ NEUTRAL POSITION (PNP) RELAY RED WIRE SHIFT LOCK SOLENOID MOTRONIC ENGINE CONTROL MODULE STARTING INTERLOCK RELAY STARTING/ CHARGING SYSTEM TIPTRONIC SWITCH TRANSMISSION CONTROL MODULE (TCM) (AT REAR OF TRANSMISSION) WHT WIRE YEL WIRE

AUTOMATIC TRANSMISSION AFTER-RUN FUSE BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) EXCEPT CONVERTIBLE FUSE 286 FUSE 31 FUSE 5 FUSE HOLDER GRN/BLU WIRE GRN/GRY WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ ECM RELAY ENERGIZED IGNITION/ STARTER SWITCH LOCK OFF MOTRONIC ENGINE INSTRUMENT CONTROL MODULE CLUSTER ORG/BLK WIRE ORG/BRN WIRE PARK/ NEUTRAL POSITION (PNP) RELAY RED WIRE RED/GRY WIRE SHIFT LOCK SOLENOID STARTING INTERLOCK RELAY STARTING/ CHARGING SYSTEM STARTING/ EXTERIOR LIGHTS CHARGING SYSTEM SYSTEM TIPTRONIC SWITCH TRANSMISSION CONTROL MODULE (TCM) (AT REAR OF TRANSMISSION) WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/GRY WIRE CD CHANGER OR IPOD/USB CONNECTION BASEPLATE COMFORT SYSTEM CENTRAL CONTROL MODULE (W/ ALARM SYSTEM) (UNDER DRIVER'S SEAT) COMPUTER DATA LINES SYSTEM FUSE 39 FUSE HOLDER GRN WIRE GRN/BLU WIRE GRY WIRE HOT AT ALL TIMES NCA WIRE ORG/BRN WIRE ORG/VIO WIRE RADIO RED/BLU WIRE SATELLITE ANTENNA SATELLITE RADIO SATELLITE TUNER ANTENNA TELEPHONE PREPARATION WIRING (W/O SATELLITE RADIO) VIO WIRE VIO/RED WIRE W/ SATELLITE RADIO W/O SATELLITE RADIO WHT WIRE YEL WIRE

AIR BAG SPIRAL SPRING/ RETURN SPRING (W/ SLIP RING) AMPLIFIER (RIGHT SIDE OF TRUNK) BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM GRN WIRE GRN/BLU WIRE GRN/YEL WIRE GRY WIRE INSIDE LOUDSPEAKER INSIDE MICROPHONE 4 3 INSTRUMENT CLUSTER LEFT ANTENNA MODULE (UNDER LEFT SIDE OF LUGGAGE COMPT LID) LEFT FRONT BASS SPEAKER LEFT FRONT MIDRANGE SPEAKER LEFT FRONT TREBLE SPEAKER -1 LEFT REAR SPEAKER NCA WIRE ORG/BLK WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/VIO WIRE POWER TOPS SYSTEM RADIO CONTROLS RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RIGHT ANTENNA MODULE (UNDER RIGHT SIDE OF LUGGAGE COMPT LID) RIGHT FRONT BASS SPEAKER RIGHT FRONT MIDRANGE SPEAKER RIGHT FRONT TREBLE SPEAKER +2 RIGHT REAR SPEAKER STEERING WHEEL CONTROL UNIT VIO/BRN WIRE VIO/GRN WIRE WHT WIRE YEL WIRE

ANTENNA BLK WIRE BLU WIRE BLU/GRN WIRE BLU/WHT WIRE BLU/YEL WIRE BRN (OR BLK) WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE CD CHANGER OR IPOD/USB CONNECTION BASEPLATE COMFORT SYSTEM CENTRAL CONTROL MODULE (UNDER DRIVER'S SEAT) COMPUTER DATA LINES SYSTEM EXCEPT W/ NAVIGATION FUSE 39 FUSE HOLDER GRN WIRE GRN/BLU WIRE GRY WIRE HOT AT ALL TIMES INSIDE LOUDSPEAKER LEFT FRONT BASS SPEAKER LEFT FRONT MIDRANGE SPEAKER NCA WIRE ORG/BRN WIRE ORG/VIO WIRE RADIO RED/BLU WIRE RIGHT FRONT BASS SPEAKER RIGHT FRONT MIDRANGE SPEAKER SATELLITE RADIO SATELLITE TUNER, SATELLITE ANTENNAE TELEPHONE PREPARATION WIRING TELEPHONE TRANSCEIVER VIO WIRE VIO/GRY WIRE VIO/RED WIRE W/ SATELLITE RADIO W/ VOICE CONTROL W/NAVIGATION W/O SATELLITE RADIO W/O VOICE CONTROL WHT WIRE WHT/YEL WIRE YEL WIRE

2 1 -1 +2 AIR BAG SPIRAL SPRING/ RETURN SPRING (W/ SLIP RING) AMPLIFIER (AVANT: RIGHT SIDE OF CARGO AREA) AVANT BASS LOUDSPEAKER -1 BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE COMFORT SYSTEM CENTRAL CONTROL MODULE (UNDER DRIVER'S SEAT) COMPUTER DATA LINES SYSTEM GRN WIRE INSTRUMENT CLUSTER LEFT ANTENNA MODULE (AVANT) (UNDER LEFT SIDE OF LUGGAGE COMPT LID) LEFT REAR BASS SPEAKER LEFT REAR MIDRANGE SPEAKER LEFT REAR SIDE WINDOW ANTENNA NCA WIRE ORG/BLK WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/VIO WIRE RADIO CONTROLS REAR WINDOW ANTENNA RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RIGHT REAR BASS SPEAKER RIGHT REAR MIDRANGE SPEAKER RIGHT REAR SIDE WINDOW ANTENNA SEDAN STEERING WHEEL CONTROL UNIT WHT WIRE YEL WIRE

ANTENNA BLK WIRE BLU WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE CD CHANGER OR IPOD/USB BASEPLATE COMFORT SYSTEM CENTRAL CONTROL MODULE (UNDER DRIVER'S SEAT) COMPUTER DATA LINES SYSTEM EXCEPT W/ NAVIGATION FUSE 39 FUSE HOLDER GRN WIRE GRN/BLU WIRE GRY WIRE HOT AT ALL TIMES LEFT REAR BASS SPEAKER LEFT REAR MIDRANGE SPEAKER NCA WIRE ORG/BRN WIRE ORG/VIO WIRE RADIO RED/BLU WIRE RED/YEL WIRE SATELLITE RADIO SATELLITE TUNER, SATELLITE ANTENNAE TELEPHONE PREPARATION WIRING TELEPHONE TRANSCEIVER VIO WIRE VIO/GRY WIRE VIO/RED WIRE W/ CD W/ SATELLITE RADIO W/ VOICE CONTROL W/NAVIGATION W/O CD (UNDER FRONT OF CENTER CONSOLE) W/O SATELLITE RADIO W/O VOICE CONTROL WHT WIRE WHT/YEL WIRE YEL WIRE

2 1 -1 +2 AIR BAG SPIRAL SPRING/ RETURN SPRING (W/ SLIP RING) AMPLIFIER (AVANT: RIGHT SIDE OF CARGO AREA) (SEDAN: RIGHT SIDE OF TRUNK) AVANT BASS LOUDSPEAKER BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE COMFORT SYSTEM CENTRAL CONTROL MODULE (UNDER DRIVER'S SEAT) COMPUTER DATA LINES SYSTEM GRN WIRE GRN/BLU WIRE GRY WIRE INSIDE LOUDSPEAKER INSIDE MICROPHONE 1 2 INSTRUMENT CLUSTER LEFT ANTENNA MODULE (UNDER LEFT SIDE OF LUGGAGE COMPT LID) LEFT FRONT BASS SPEAKER LEFT FRONT MIDRANGE SPEAKER LEFT REAR SIDE WINDOW ANTENNA NCA WIRE ORG/BLK WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/VIO WIRE RADIO CONTROLS REAR WINDOW ANTENNA RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RIGHT FRONT BASS SPEAKER 2 1 +2 -1 RIGHT FRONT MIDRANGE SPEAKER RIGHT REAR BASS SPEAKER RIGHT REAR MIDRANGE SPEAKER RIGHT REAR SIDE WINDOW ANTENNA SEDAN STEERING WHEEL CONTROL UNIT WHT WIRE YEL WIRE

* - INFORMATION NOT AVAILABLE 1 2 SOLID STATE 2 1 SOLID STATE AIRBAG CONTROL MODULE AIRBAG MALFUNCTION INDICATOR LAMP (MIL) BLK WIRE BLU WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE COMFORT SYSTEM CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM CONTROL MODULE DRIVER'S FRONT AIRBAG CRASH SENSOR DRIVER'S SAFETY BELT SWITCH DRIVER'S SIDE AIRBAG CRASH SENSOR FRONT PASSENGER'S AIRBAG DISABLED INDICATOR LAMP (IF EQUIPPED) FRONT PASSENGER'S FRONT AIRBAG CRASH SENSOR FRONT PASSENGER'S HEADCURTAIN AIRBAG IGNITER FRONT PASSENGER'S SEAT OCCUPIED SENSOR (IF EQUIPPED) FRONT PASSENGER'S SIDE AIRBAG CRASH SENSOR FUSE HOLDER FUSE 11 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/YEL WIRE HOT IN ON OR START INSTRUMENT CLUSTER MOTRONIC ENGINE CONTROL MODULE (ECM) NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/BRN WIRE REAR SIDE AIRBAG CRASH SENSOR (DRIVER'S SIDE) REAR SIDE AIRBAG CRASH SENSOR (FRONT PASSENGER'S SIDE) RED WIRE SEAT OCCUPIED RECOGNITION SEAT OCCUPIED RECOGNITION PRESSURE SENSOR SHORTING CONTACT SOLID STATE VIO WIRE VIO/BLU WIRE WHT WIRE WHT/YEL WIRE YEL WIRE YEL/GRY WIRE YEL/RED WIRE YEL/WHT WIRE

* - INFORMATION NOT AVAILABLE 1 2 SOLID STATE 2 1 SOLID STATE AIRBAG CONTROL MODULE AIRBAG MALFUNCTION INDICATOR LAMP (MIL) BLK WIRE BLU WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE COMFORT SYSTEM CENTRAL CONTROL MODULE COMPUTER DATA LINES SYSTEM CONTROL MODULE DRIVER'S FRONT AIRBAG CRASH SENSOR DRIVER'S SAFETY BELT SWITCH DRIVER'S SIDE AIRBAG CRASH SENSOR FRONT PASSENGER'S AIRBAG DISABLED INDICATOR LAMP (IF EQUIPPED) FRONT PASSENGER'S FRONT AIRBAG CRASH SENSOR FRONT PASSENGER'S SEAT OCCUPIED SENSOR (IF EQUIPPED) FRONT PASSENGER'S SIDE AIRBAG CRASH SENSOR FUSE HOLDER FUSE 11 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/YEL WIRE HOT IN ON OR START INSTRUMENT CLUSTER MOTRONIC ENGINE CONTROL MODULE (ECM) ORG/ WIRE ORG/BLK WIRE ORG/BRN WIRE REAR SIDE AIRBAG CRASH SENSOR (DRIVER'S SIDE) REAR SIDE AIRBAG CRASH SENSOR (FRONT PASSENGER'S SIDE) RED WIRE SEAT OCCUPIED RECOGNITION SEAT OCCUPIED RECOGNITION PRESSURE SENSOR SOLID STATE VIO WIRE VIO/BLU WIRE WHT WIRE WHT/YEL WIRE YEL WIRE YEL/GRY WIRE YEL/RED WIRE YEL/WHT WIRE