Volkswagen Jetta IV (1998-2005) computer data lines system Wiring diagrams

7 3 4 5 SOLID STATE A/C SYSTEM BLK WIRE BLK/ GRY WIRE BLK/ YEL WIRE BLK/GRN WIRE BLK/VIO WIRE BLU VIO/ WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BRAKE BOOSTER CONTROL MODULE BRAKE PRESSURE SWITCH BRAKELIGHT SWITCH (ABOVE BRAKE PEDAL) BRN WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH, BELOW STEERING COLUMN) FUSE 11 FUSE 13 FUSE 31 FUSE 7 FUSE PANEL (BEHIND LEFT SIDE OF DASH) FUSE 15 GRN WIRE GRY YEL/ WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT CLUSTER SYSTEM INTERMEDIATE SHAFT SPEED SENSOR MOTRONIC ENGINE CONTROL MODULE (AT BASE OF WINDSHIELD IN CENTER OF PLENUM) MULTI-FUNCTION TRANSMISSION RANGE SWITCH (RIGHT SIDE OF TRANSMISSION) NCA WIRE ORG/BLK WIRE ORG/BRN WIRE PARK/ NEUTRAL POSITION RELAY RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE SHIFT LOCK SOLENOID (AT BASE OF GEAR SELECTOR) SOLENOID VALVE SOLID STATE STARTING/ CHARGING SYSTEM THIRTEEN POSITION AUXILIARY RELAY PANEL (UNDER LEFT SIDE OF DASH) TIPTRONIC SWITCH/ SELECTOR LEVEL POSITION P/N WARNING LIGHT TRANS FLUID TEMP SENSOR TRANSMISSION CONTROL MODULE (AT BASE OF WINDSHIELD, IN RIGHT SIDE OF PLENUM) TRANSMISSION VEHICLE SPEED SENSOR (ON TOP OF TRANSMISSION) VALVE BODY VEHICLE SPEED SENSOR (ON TOP OF TRANSMISSION HOUSING) VIO GRN/ WIRE VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/RED WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/GRY WIRE

A/C SYSTEM BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BRAKELIGHT SWITCH (ABOVE BRAKE PEDAL) BRN WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH, BELOW STEERING COLUMN) FUSE 11 FUSE 13 FUSE 31 FUSE 7 FUSE PANEL (BEHIND LEFT SIDE OF DASH) FUSE 15 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT IN ON OR START MULTI-FUNCTION TRANSMISSION RANGE SWITCH (RIGHT SIDE OF TRANSMISSION) NCA WIRE ORG/BLK WIRE ORG/BRN WIRE PARK/ NEUTRAL POSITION RELAY RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SELECTOR LEVEL POSITION P/N WARNING LIGHT SHIFT LOCK SOLENOID SOLENOID VALVES SOLID STATE STARTING/ CHARGING SYSTEM THIRTEEN POSITION AUXILIARY RELAY PANEL (UNDER LEFT SIDE OF DASH) TRANSMISSION CONTROL MODULE (AT BASE OF WINDSHIELD, IN RIGHT SIDE OF PLENUM) TRANSMISSION FLUID TEMPERATURE SENSOR TRANSMISSION VEHICLE SPEED SENSOR (ON TOP OF TRANSMISSION) VALVE BODY VEHICLE SPEED SENSOR (ON TOP OF TRANSMISSION HOUSING) VIO/BLK WIRE WHT WIRE YEL WIRE YEL/BLU WIRE YEL/RED WIRE

AIR BAG SPIRAL SPRING/ RETURN SPRING WITH SLIP RING BLK WIRE BLK/BLU WIRE BLU WIRE BRN WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM DUAL HORN RELAY FUSE 40 FUSE 5 FUSE PANEL FUSE PANEL (BEHIND LEFT SIDE OF DASH) GRN WIRE GRN/WHT WIRE HORN HORN SWITCH HOT AT ALL TIMES HOT IN RUN OR START IGNITION SWITCH LOAD REDUCTION RELAY MULTI-FUNCTION STEERING WHEEL CONTROL MODULE NCA WIRE OFF ORG/BRN WIRE ORG/GRN WIRE RED WIRE STEERING WHEEL CONTROL UNIT THIRTEENFOLD AUXILIARY RELAY PANEL (UNDER LEFT SIDE OF DASH) WHT WIRE YEL WIRE

"ANTI-THEFT" INDICATOR 1.8L, 2.8L A/T ABS WARNING AIRBAG MALFUNCTION ANTI-THEFT IMMOBILIZER ANTI-THEFT SYSTEM BLK WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BRAKE FLUID LEVEL WARNING SWITCH BRAKE PAD WEAR INDICATOR BRAKE SYSTEM WARNING BRN WIRE BRN/BLK WIRE BRN/WHT WIRE BRN/YEL WIRE CLIMATRONIC CONTROL MODULE COMPUTER DATA LINES SYSTEM CONTROL MODULE WITH INDICATOR UNIT COOLANT TEMP GAUGE CRUISE CONTROL DIGITAL CLOCK DIGITAL DISPLAY ILLUMINATION DOOR AJAR WARNING ELECTRONIC POWER CONTROL ENGINE COOLANT LEVEL SENSOR (IN COOLANT FLANGE) ENGINE COOLANT TEMPERATURE SENSOR EXCEPT 1.8L, 2.8L A/T FUEL GAUGE FUEL LEVEL SENSOR (IN TANK) FUSE 10 FUSE 11 FUSE 15 FUSE PANEL FUSE 7 (BEHIND LEFT SIDE OF DASH) GENERATOR GENERATOR WARNING GLOW PLUG (1.9L) GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HIGH BEAM HOT AT ALL TIMES HOT IN ON OR START HOT WITH KEY IN IGNITION INSTRUMENT CLUSTER LEFT FRONT BRAKE PAD WEAR SENSOR LEFT SEAT BELT SWITCH LEFT TURN LOW COOLANT LEVEL/TEMP WARNING LOW FUEL WARNING LOW WASHER FLUID LEVEL MALFUNCTION INDICATOR LIGHT MULTI-FUNCTION INDICATOR ODOMETER DISPLAY OIL LEVEL WARNING OIL PRESSURE SWITCH (ON OIL FILTER FLANGE) OIL PRESSURE WARNING ORG/BLK WIRE ORG/BRN WIRE ORG/GRN WIRE OUTSIDE AIR TEMPERATURE SENSOR (IF EQUIPPED) PARKING BRAKE WARNING LIGHT SWTICH REAR LID AJAR WARNING (2002 EARLY PROD) ESP/ASC CONTROL LAMP RED WIRE RED/VIO WIRE RIGHT TURN SEATBELT WARNING SPEEDO- METER SPEEDO- METER VEHICLE SPEED SENSOR TACHO- METER THIRTEENFOLD RELAY PANEL (UNDER LEFT SIDE OF DASH) TRANS- MISSION CONTROL MODULE TURN SIGNAL SWITCH VIO WIRE VIO/BLK WIRE VIO/RED WIRE VIO/WHT WIRE WARNING BUZZER WHT WIRE WINDSHIELD WASHER FLUID LEVEL SENSOR WIPER/ WASHER INTERMITTENT RELAY YEL WIRE YEL/GRN WIRE YEL/RED WIRE

ALARM SYSTEM ANTI- THEFT FUSE ANTI-THEFT SYSTEM BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CENTRAL LOCKING WARNING LIGHT (SAFE) CENTRAL LOCKING, ANTI-THEFT WARNING SYSTEM ANTENNA CENTRAL LOCKING/ ANTI- THEFT FUSE CIRCUIT BREAKER COMFORT SYSTEM CENTRAL CONTROL MODULE (BEHIND LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DEFOGGER OR MIRRORS SYSTEM DEFOGGERS SYSTEM DOOR AJAR INDICATOR DRIVER'S SIDE CENTRAL LOCKING LOCK UNIT DRIVER'S SIDE DOOR CONTROL MODULE (IN DRIVER'S DOOR, INTEGRAL WITH WINDOW MOTOR) DRIVER'S SIDE INTERIOR LOCK SWITCH EXTERIOR LIGHTS SYSTEM INSTRUMENT CLUSTER SYSTEM FUSE GRN WIRE GRN/BRN WIRE GRN/RED WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSE PANEL (BEHIND LEFT SIDE OF DASH) FUSE INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM NCA WIRE ORG/ WIRE ORG/BRN WIRE ORG/GRN WIRE POWER TOPS SYSTEM POWER WINDOW CIRCUIT BREAKER (UNDER LEFT SIDE OF DASH) REAR LID AJAR INDICATOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE TRUNK LOCK ALARM/ CENTRAL LOCKING SWITCH TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE VIO/YEL WIRE WHT WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

"ANTI-THEFT" INDICATOR ALARM HORN ALARM SYSTEM ANTI- THEFT FUSE BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CENTRAL LOCKING WARNING LIGHT (SAFE) CENTRAL LOCKING, ANTI-THEFT WARNING SYSTEM ANTENNA CENTRAL LOCKING/ ANTI- THEFT FUSE CIRCUIT BREAKER COMFORT SYSTEM CENTRAL CONTROL MODULE (BEHIND LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DEFOGGER SYSTEMS DOOR AJAR INDICATOR DRIVER'S SIDE CENTRAL LOCKING LOCK UNIT DRIVER'S SIDE DOOR CONTROL MODULE (IN DRIVER'S DOOR, INTEGRAL WITH WINDOW MOTOR) DRIVER'S SIDE INTERIOR LOCK SWITCH EXTERIOR LIGHTS SYSTEM INSTRUMENT CLUSTER SYSTEM FUSE GRN WIRE GRN/BRN WIRE GRN/RED WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/WHT WIRE GRY/YEL WIRE HOOD ALARM SWITCH HOT AT ALL TIMES HOT AT ALL TIMES FUSE PANEL (BEHIND LEFT SIDE OF DASH) FUSE INSTRUMENT CLUSTER NCA WIRE ORG/BRN WIRE ORG/GRN WIRE POWER TOPS SYSTEM POWER WINDOW CIRCUIT BREAKER (UNDER LEFT SIDE OF DASH) RADIO REAR LID UNLOCK MOTOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE REMOTE FUEL TANK DOOR SWITCH VIO WIRE VIO/YEL WIRE WHT WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM POWER WINDOWS SYSTEM DRIVER'S SIDE DOOR CONTROL MODULE DRIVER'S SIDE POWER MIRROR GRN WIRE GRY WIRE HOT AT ALL TIMES FUSE PANEL (BEHIND LEFT SIDE OF DASH) FUSE ILLUMI- NATION LEFT DOWN RIGHT MIRROR ADJUSTMENT SWITCHES MIRROR SELECTOR SWITCH NCA WIRE ORG/ WIRE PASSENGER'S SIDE DOOR CONTROL MODULE PASSENGER'S SIDE POWER MIRROR POWER MIRROR SWITCH MIRROR HEATER SWITCH RED WIRE VIO WIRE WHT WIRE YEL WIRE

AMPLIFIER ANTENNA (W/AMPLIFIER) ANTI-THEFT SYSTEM BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CD CHANGER UNIT (PROVISIONS) 10 7 8 1 2 5 3 COMPUTER DATA LINES SYSTEM FUSE 42 FUSE PANEL (BEHIND LEFT SIDE OF DASH) GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT FRONT BASS SPEAKER LEFT FRONT TREBLE SPEAKER LEFT REAR BASS SPEAKER LEFT REAR TREBLE SPEAKER NCA WIRE ORG/BRN WIRE ORG/GRN WIRE RADIO RED WIRE RED/GRN WIRE RED/WHT WIRE RIGHT FRONT BASS SPEAKER RIGHT FRONT TREBLE SPEAKER RIGHT REAR BASS SPEAKER RIGHT REAR TREBLE SPEAKER VIO WIRE WHT WIRE YEL WIRE

ANTENNA (W/AMPLIFIER) ANTI-THEFT SYSTEM BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CD CHANGER UNIT (PROVISIONS) 10 7 8 1 2 5 3 COMPUTER DATA LINES SYSTEM FUSE 42 FUSE PANEL (BEHIND LEFT SIDE OF DASH) GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT FRONT BASS SPEAKER LEFT FRONT TREBLE TWEETER LEFT REAR BASS SPEAKER LEFT REAR TREBLE TWEETER NCA WIRE ORG/BRN WIRE ORG/GRN WIRE RADIO RED WIRE RED/GRN WIRE RED/WHT WIRE RIGHT FRONT BASS SPEAKER RIGHT FRONT TREBLE TWEETER RIGHT REAR BASS SPEAKER RIGHT REAR TREBLE TWEETER VIO WIRE WHT WIRE YEL WIRE

A/C SYSTEM BLK WIRE BLK/RED WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM EARLY PROD 2003 LATE PROD 2003, 2004 EARLY PRODUCTION 2003 FUEL PUMP RELAY FUSE 163 FUSE 29 FUSE 37 FUSE PANEL FUSE/ BRACKET BATTERY GRN WIRE GRN/BRN WIRE GRN/GRY (OR GRN) WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/RED WIRE GRY/WHT WIRE HEATED OXYGEN HOT AT ALL TIMES HOT IN RUN OR START IGNITION SWITCH LEAK DETECTION PUMP (IN RIGHT REAR WHEELHOUSE) LOCK MOTRONIC ENGINE CONTROL MODULE (AT BASE OF WINDSHIELD IN CENTER OF PLENUM) NCA WIRE NOT USED NOT USED ORG/BLK WIRE ORG/BRN WIRE OXYGEN POWER SUPPLY RELAY RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RELAY PANEL RUN WIRE STARTING/ CHARGING SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM THROTTLE POSITION SENSOR/ ACCEL PEDAL POSITION SENSOR VIO WIRE VIO/GRN WIRE VIO/RED WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL/BRN WIRE YEL/GRN WIRE