Volkswagen Golf Mk4 (1997-2006) red Wiring diagrams

2.8L A/C CLUTCH AFTER-RUN COOLANT PUMP (2.8L) AMBIENT TEMPERATURE SWITCH (LEFT SIDE OF PLENUM, AT BASE OF WINDSHIELD) BLK WIRE BLK/BLU WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE COOLANT FAN CONTROL MODULE (AT LEFT FRONT SIDE OF ENGINE COMPARTMENT) COOLANT FAN CONTROL THERMAL SWITCH DIESEL FUSE 16 FUSE 3 FUSE 5 FUSE 8 FUSE BRACKET/ BATTERY (BEHIND BATTERY) FUSE PANEL (BEHIND LEFT SIDE OF DASH) GASOLINE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRY WIRE HEATER-A/C CONTROL PANEL HIGH PRESSURE SENSOR HOT AT ALL TIMES HOT IN RUN, START INSTRUMENT CLUSTER LATE PRODUCTION 2004, 2005 EARLY PRODUCTION 2004 LEFT COOLANT FAN RED WIRE RED/BLK WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT COOLANT FAN TRANSMISSION CONTROL MODULE (AT BASE OF WINDSHIELD, RIGHT SIDE OF PLENUM) VIO/YEL WIRE WHT WIRE

2.8L A/C CLUTCH A/C SWITCH AFTER-RUN COOLANT PUMP (2.8L) AMBIENT TEMPERATURE SWITCH (ON LEFT SIDE OF PLENUM, AT BASE OF WINDSHIELD) BLK/BLU WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE COOLANT FAN CONTROL (FC) SWITCH (ON BOTTOM LEFT REAR OF RADIATOR) COOLANT FAN CONTROL MODULE (AT LEFT FRONT SIDE OF ENGINE COMPARTMENT) DIESEL FRESH AIR BLOWER (RIGHT SIDE OF DASH, ON HVAC HOUSING) FRESH AIR BLOWER SERIES RESISTANCE WITH FUSE (ON FRESH AIR BLOWER) FRESH AIR BLOWER SWITCH FRESH/ RECIRC SWITCH FRESH/RECIRCULATING AIR DOOR SERVO MOTOR (ON RIGHT CORNER OF HVAC HOUSING) FUSE 16 FUSE 25 FUSE 3 FUSE 5 FUSE 8 FUSE PANEL (BEHIND LEFT SIDE OF DASH) FUSE/BRACKET BATTERY (BEHIND BATTERY) GASOLINE GRN (OR GRN/GRY) WIRE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRY/BLU WIRE HEATER-A/C CONTROL PANEL HIGH PRESSURE SENSOR HOT AT ALL TIMES HOT IN RUN HOT W/ LOAD REDUCTION RELAY ENERGIZED INSTRUMENT CLUSTER LEFT COOLANT FAN RED WIRE RED/BLK WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT COOLANT FAN VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE

A/C CLUTCH AMBIENT TEMPERATURE SWITCH (LEFT SIDE OF PLENUM, AT BASE OF WINDSHIELD) BLK WIRE BLK/BLU WIRE BLK/VIO WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/BLK WIRE COOLANT FAN CONTROL MODULE (AT LEFT FRONT SIDE OF ENGINE COMPARTMENT) COOLANT FAN CONTROL THERMAL SWITCH ENGINE CONTROLS SYSTEM FUSE 16 FUSE 3 FUSE 37 FUSE 5 FUSE 8 FUSE BRACKET/ BATTERY (BEHIND BATTERY) FUSE PANEL (BEHIND LEFT SIDE OF DASH) GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/RED WIRE GRY WIRE HEATER-A/C CONTROL PANEL HIGH PRESSURE SENSOR HOT AT ALL TIMES HOT IN RUN, START INSTRUMENT CLUSTER LEFT COOLANT FAN MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY (BEHIND AIR CLEANER HOUSING) RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT COOLANT FAN TRANSMISSION CONTROL MODULE (AT BASE OF WINDSHIELD, RIGHT SIDE OF PLENUM) VIO WIRE VIO/YEL WIRE WHT WIRE YEL/RED WIRE

A/C CLUTCH A/C SWITCH AMBIENT TEMPERATURE SWITCH (ON LEFT SIDE OF PLENUM, AT BASE OF WINDSHIELD) BLK WIRE BLK/BLU WIRE BLK/VIO WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE COOLANT FAN CONTROL MODULE (AT LEFT FRONT OF ENGINE COMPARTMENT) COOLANT FAN CONTROL THERMAL SWITCH (BOTTOM LEFT REAR OF RADIATOR) ENGINE CONTROLS SYSTEM FRESH AIR BLOWER (BEHIND RIGHT SIDE OF DASH, ON HVAC HOUSING) FRESH AIR BLOWER SWITCH FRESH/ RECIRC SWITCH FRESH/RECIRCULATING AIR DOOR SERVO MOTOR (ON RIGHT CORNER OF HVAC HOUSING) FUSE 16 FUSE 25 FUSE 3 FUSE 37 FUSE 8 FUSE/BRACKET BATTERY (BEHIND BATTERY) GRN (OR GRN/GRY) WIRE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/RED WIRE GRY/BLU WIRE HEATER-A/C CONTROL PANEL HIGH PRESSURE SENSOR HOT AT ALL TIMES HOT IN RUN OR START FUSE PANEL (BEHIND LEFT SIDE OF DASH) FUSE 5 HOT W/ LOAD REDUCTION RELAY ENERGIZED INSTRUMENT CLUSTER LEFT COOLANT FAN MOTRONIC ENGINE CONTROL MODULE POWER SUPPLY RELAY (BEHIND AIR CLEANER HOUSING) RED WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RIGHT COOLANT FAN VIO WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

2.8L A/C CLUTCH A/C SWITCH AFTER-RUN COOLANT PUMP (2.8L) AMBIENT TEMPERATURE SWITCH (ON LEFT SIDE OF PLENUM, AT BASE OF WINDSHIELD) BLK/BLU WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE COOLANT FAN CONTROL (FC) SWITCH (ON BOTTOM LEFT REAR OF RADIATOR) COOLANT FAN CONTROL MODULE (AT LEFT FRONT SIDE OF ENGINE COMPARTMENT) DIESEL FRESH AIR BLOWER (RIGHT SIDE OF DASH, ON HVAC HOUSING) FRESH AIR BLOWER SERIES RESISTANCE WITH FUSE (ON FRESH AIR BLOWER) FRESH AIR BLOWER SWITCH FRESH/ RECIRC SWITCH FRESH/RECIRCULATING AIR DOOR SERVO MOTOR (ON RIGHT CORNER OF HVAC HOUSING) FUSE 16 FUSE 25 FUSE 3 FUSE 5 FUSE 8 FUSE PANEL (BEHIND LEFT SIDE OF DASH) FUSE/BRACKET BATTERY (BEHIND BATTERY) GASOLINE GRN (OR GRN/GRY) WIRE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRY/BLU WIRE HEATER-A/C CONTROL PANEL HIGH PRESSURE SENSOR HOT AT ALL TIMES HOT IN RUN HOT W/ LOAD REDUCTION RELAY ENERGIZED INSTRUMENT CLUSTER LEFT COOLANT FAN RED WIRE RED/BLK WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT COOLANT FAN VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE

2004 LATE PROD, 2005 2004 EARLY PROD 4 SPEED 5 SPEED 4-MOTION ABS HYDRAULIC PUMP ABS WARNING IND ASR/ESP CONTROL LAMP BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BRN WIRE BRAKE BOOSTER SENDER 1 BRAKE FLUID LEVEL WARNING SWITCH (INTEGRAL WITH BRAKE FLUID RESERVOIR CAP) BRAKE LIGHT SWITCH (ABOVE BRAKE PEDAL) BRAKE PAD WEAR IND LAMP BRAKE SYSTEM (LEFT FRONT OF ENG COMPT) WARNING IND BRN WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DIESEL DIESEL DIRECT FUEL INJECTION ENGINE CONTROL ESP/ANTI- SLIP CONTROL SWITCH FUSE 13 FUSE 15 FUSE 178 FUSE 179 GASOLINE GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSE BRACKET/ BATTERY (BEHIND BATTERY) HOT IN ON OR START FUSE PANEL (BEHIND LEFT SIDE OF DASH) FUSE 9 INSTRUMENT CLUSTER LEFT FRONT ABS WHEEL SPEED SENSOR (ON LEFT FRONT HUB/SPINDLE ASSEMBLY) LEFT FRONT BRAKE PAD WEAR SENSOR LEFT REAR ABS INLET VALVE LEFT REAR ABS OUTLET VALVE LEFT REAR ABS WHEEL SPEED SENSOR (ON LEFT REAR HUB/SPINDLE ASSEMBLY) MODULE (AT BASE OF WINDSHIELD IN CENTER OF PLENUM) MOTRONIC ENGINE CONTROL MODULE (AT BASE OF WINDSHIELD IN CENTER OF PLENUM) ORG/ WIRE ORG/BLK WIRE ORG/BRN WIRE PARKING BRAKE WARNING LIGHT SWITCH RED WIRE RED/BLK WIRE RED/GRN WIRE RED/VIO WIRE RIGHT FRONT ABS WHEEL SPEED SENSOR (ON RIGHT FRONT HUB/SPINDLE ASSEMBLY) RIGHT REAR ABS INLET VALVE RIGHT REAR ABS OUTLET VALVE RIGHT REAR ABS WHEEL SPEED SENSOR (ON RIGHT REAR HUB/SPINDLE ASSEMBLY) STEERING ANGLE SENSOR TRACTION CONTROL PILOT VALVE 1 TRACTION CONTROL PILOT VALVE 2 TRANSMISSION CONTROL MODULE (AT BASE OF VIO WIRE VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/YEL WIRE WINDSHIELD IN RIGHT SIDE OF PLENUM) YEL WIRE YEL/GRN WIRE YEL/VIO WIRE

* - INFORMATION NOT AVAILABLE 2004 LATE PROD, 2005 2004 EARLY PROD 4 SPEED 5 SPEED ABS HYDRAULIC PUMP BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BRN WIRE BRAKE ABS SYSTEM WARNING WARNING IND IND BRAKE FLUID LEVEL WARNING SWITCH (INTEGRAL WITH BRAKE FLUID RESERVOIR CAP) BRAKE LIGHT SWITCH (ABOVE BRAKE PEDAL) BRAKE PAD WEAR IND LAMP BRN WIRE BRN/BLU WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DIESEL DIESEL DIRECT FUEL INJECTION ENGINE CONTROL ESP/ANTI- SLIP CONTROL SWITCH (W/ ESP/ ANTI-SLIP CONTROL) ESP/ASC CONTROL LAMP FUSE 178 FUSE 179 FUSE 9 FUSE BRACKET/ BATTERY (BEHIND BATTERY) GASOLINE GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSE PANEL (BEHIND LEFT SIDE OF DASH) FUSE 13 IGNITION SWITCH IN RIGHT SIDE OF PLENUM) INSTRUMENT CLUSTER LEFT FRONT ABS WHEEL SPEED SENSOR (ON LEFT FRONT HUB/SPINDLE ASSEMBLE) LEFT FRONT BRAKE PAD WEAR SENSOR LEFT REAR ABS INLET VALVE LEFT REAR ABS OUTLET VALVE LEFT REAR ABS WHEEL SPEED SENSOR (ON LEFT REAR HUB/SPINDLE ASSEMBLY) LOCK MODULE (AT BASE OF WINDSHIELD IN CENTER OF PLENUM) MOTRONIC ENGINE CONTROL MODULE (AT BASE OF WINDSHIELD IN CENTER OF PLENUM) ORG/BLK WIRE ORG/BRN WIRE PARKING BRAKE WARNING LIGHT SWITCH RED WIRE RED/BLK WIRE RED/GRN WIRE RIGHT FRONT ABS WHEEL SPEED SENSOR (ON RIGHT FRONT HUB/SPINDLE ASSEMBLY) RIGHT REAR ABS INLET VALVE RIGHT REAR ABS OUTLET VALVE RIGHT REAR ABS WHEEL SPEED SENSOR (ON RIGHT REAR HUB/SPINDLE ASSEMBLE) TRACTION CONTROL PILOT VALVE 1 TRACTION CONTROL PILOT VALVE 2 TRANSMISSION CONTROL MODULE (AT BASE OF WINDSHIELD WHT WIRE YEL WIRE YEL/GRN WIRE

"ANTI-THEFT" INDICATOR 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 OR MIRRORS SYSTEM DEFOGGERS SYSTEM DOOR LOCKS SYSTEM 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) 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 TRUNK, TAILGATE, FUEL DOORS SYSTEM INSTRUMENT CLUSTER SYSTEM VIO WIRE VIO/YEL WIRE WHT WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

ALARM HORN BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE DEFOGGER SYSTEM GRN WIRE GRN/VIO WIRE GRY WIRE GRY/VIO WIRE HOOD ALARM SWITCH LEFT REAR CENTRAL LOCKING LOCK UNIT LEFT REAR DOOR CONTROL MODULE (IN LEFT REAR DOOR, INTEGRAL WITH WINDOW MOTOR) NCA WIRE ORG/BRN WIRE ORG/GRN WIRE PASSENGER'S SIDE CENTRAL LOCKING LOCK UNIT PASSENGER'S SIDE INTERIOR LOCK SWITCH RADIO RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR CENTRAL LOCKING LOCK UNIT RIGHT REAR DOOR CONTROL MODULE (IN RIGHT REAR DOOR, INTEGRAL WITH WINDOW MOTOR) VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/YEL WIRE WHT WIRE YEL WIRE

1.8L, 2.0L, 2.8L, 3.2L 1.9L (EARLY PROD 2004) 1.9L (LATE PROD 2004, 2005) 4 SPEED 5 SPEED ABS CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) AIR BAG CONTROL MODULE (BENEATH CENTER OF DASH, ON CENTRAL TUNNEL) ALL- WHEEL DRIVE CONTROL MODULE BLK WIRE BLK/BLU WIRE BLU WIRE BLU/GRY WIRE BLU/ORG WIRE BRN WIRE CLIMATRONIC CONTROL MODULE COMFORT SYSTEM CENTRAL CONTROL MODULE (BEHIND LEFT SIDE OF DASH) DATA BUS ON BOARD DIAGNOSTIC INTERFACE DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DRIVER DOOR CONTROL MODULE (IN DOOR) FUSE 12 FUSE 5 FUSE PANEL (BEHIND LEFT SIDE OF DASH) GRN WIRE GRY WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT CLUSTER LEFT REAR DOOR CONTROL MODULE (IN DOOR) MEMORY SEAT CONTROL MODULE (UNDER LEFT SIDE OF DRIVER'S SEAT) MULTI-FUNCTION STEERING WHEEL CONTROL MODULE ORG/ WIRE ORG/BLK WIRE ORG/BRN WIRE ORG/GRN WIRE PASSENGER DOOR CONTROL MODULE (IN DOOR) RADIO RED WIRE RED/WHT WIRE RIGHT REAR DOOR CONTROL MODULE (IN DOOR) STEERING ANGLE SENSOR TELEMATIC CONTROL MODULE TRANSMISSION CONTROL MODULE (AT BASE OF WINDSHIELD, IN RIGHT SIDE OF PLENUM) WHT WIRE