Volkswagen Golf Mk4 (1997-2006) blu/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

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

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

A/C SYSTEM BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE COOLING FANS SYSTEM CRUISE CONTROL SYSTEM EGR VACUUM REGULATOR SOLENOID VALVE (ON CENTER OF FIREWALL) FUSE 176 FUSE 29 FUSE 32 FUSE 43 FUSE BRACKET FUSE PANEL FUSE PANEL FUSE 34 GENERATOR GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT IN RUN OR START MASS AIRFLOW (MAF) SENSOR (RIGHT SIDE OF AIR CLEANER HOUSING) ORG/BLK WIRE ORG/BRN WIRE POWER SUPPLY RELAY (ON THIRTEENFOLD AUXILIARY RELAY PANEL) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RELAY PANEL TRANSMISSIONS SYSTEM VIO/RED WIRE WHT WIRE WHT/BLU WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

A/C SYSTEM A/T BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE COOLANT GLOW PLUGS (M/T) COOLANT PREHEATING RELAY (HIGH HEAT OUTPUT) (M/T) COOLANT PREHEATING RELAY (LOW HEAT OUTPUT) (M/T) CRUISE CONTROL SYSTEM ENGINE GLOW PLUGS FUEL PUMP FUEL PUMP RELAY FUSE 162 FUSE 163 FUSE BRACKET/ BATTERY (BEHIND BATTERY) GLOW PLUG TRIGGERING CONTROL MODULE GRN WIRE GRN/BLK WIRE GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES M/T ORG/BLK WIRE ORG/BRN WIRE RED WIRE RED/BLK WIRE STARTING/ CHARGING SYSTEM TRANSMISSION SYSTEM VIO/RED WIRE VIO/WHT WIRE VIO/YEL WIRE WHT/YEL WIRE YEL/BLK WIRE YEL/GRN 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

BLK WIRE BLK/VIO WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE BRN/YEL WIRE EARLY PRO- DUCTION 2003 ENGINE SPEED (RPM) SENSOR (ON LEFT SIDE OF ENGINE BLOCK) FUEL PUMP (IN FUEL TANK) FUSE 28 FUSE 32 FUSE 34 FUSE 43 FUSE PANEL FUSE/ BRACKET BATTERY FUSE 162 GRN WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BRN WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER KNOCK SENSOR 1 (ON LEFT FRONT SIDE OF ENGINE BLOCK) KNOCK SENSOR 2 (BEHIND IGNITION COIL) MALFUNCTION INDICATOR LAMP NCA WIRE RED WIRE RED/BLK WIRE RED/VIO WIRE SECONDARY AIR INJECTION PUMP MOTOR (ON LEFT REAR SIDE OF ENGINE) SECONDARY AIR INJECTION PUMP RELAY (IN LEFT SIDE OF ENGINE COMPT) WHT WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE