Volkswagen Passat B4 (1993-1997) nca Wiring diagrams

ABS CONTROL MODULE (BELOW LEFT REAR SEAT) ABS DIAGNOSTIC CONNECTOR (BEHIND FUSE/RELAY PANEL) BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BRAKE LIGHT SWITCH (TOP OF BRAKE PEDAL SUPPORT) BRAKE PEDAL POSITION SENSOR BRN WIRE BRN/BLK WIRE BRN/RED WIRE BRN/WHT WIRE ELECTRONIC DIFFERENTIAL LOCK CUT-OFF RELAY ELECTRONIC DIFFERENTIAL LOCK SERIES RESISTANCE FUSE 20 FUSE/ RELAY PANEL (BELOW LEFT SIDE OF I/P) GRN WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSE/ RELAY PANEL (BELOW LEFT SIDE OF I/P) IGNITION SWITCH LEFT FRONT SPEED SENSOR CAPACITOR LEFT FRONT WHEEL SPEED SENSOR LEFT REAR WHEEL SPEED SENSOR LOAD REDUCTION RELAY LOCK NCA WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT SPEED SENSOR CAPACITOR RIGHT FRONT WHEEL SPEED SENSOR RIGHT REAR WHEEL SPEED SENSOR TO HEADLIGHT SWITCH WHT WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/RED WIRE

ALARM HORN ALARM SYSTEM CONTROL MODULE ALARM SYSTEM CONTROL MODULE FUSE ALARM SYSTEM INDICATOR LIGHT ALARM/ CENTRAL LOCKING TRUNK LOCK SWITCH BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE DOOR LOCKS SYSTEM F/1 FUSE 21 FUSE/ RELAY PANEL GRN WIRE GRY WIRE HOOD ALARM SWITCH HOT AT ALL TIMES IGNITION SWITCH INSTRUMENT CLUSTER INTERIOR LIGHTS SYSTEM (DOOR CONTACT SWITCHES) L/7 LOCK LUGGAGE COMPARTMENT LIGHT SWITCH NCA WIRE Q/5 RADIO RED WIRE RED/BLK (OR BLK/RED) WIRE RED/BLK WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE STARTER TERMINAL 50 WHT WIRE WHT/BLK WIRE WHT/BRN WIRE

BACKUP LIGHT SWITCH (M/T) (NEAR GEAR SELECTOR ON TRANSAXLE) BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/RED WIRE BLU WIRE BRN WIRE BRN/RED WIRE D/8 ENGINE CONTROLS SYSTEM F/1 F/6 F/7 FUSE 14 FUSE/ RELAY PANEL GRY/BLK WIRE HOT IN ON OR START HOT IN START K/8 LEFT BACKUP LIGHT M/T A/T MULTI-FUNCTION TRANSMISSION RANGE SWITCH (A/T) NCA WIRE PARK/NEUTRAL POSITION RELAY (A/T) (ON FUSE/ RELAY PANEL) RED WIRE RED/BLK WIRE RED/YEL WIRE RIGHT BACKUP LIGHT SOLID STATE TRANSMISSION CONTROL MODULE (BELOW REAR BENCH SEAT) VIO/WHT WIRE YEL WIRE YEL/BLU WIRE

A/T M/T BLK WIRE BLK/BLU WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRAKE LIGHT SWITCH BRAKE VACUUM VENT VALVE SWITCH BRN WIRE BRN/RED WIRE CLUTCH VACUUM VENT VALVE SWITCH CRUISE CONTROL FUSE (ABOVE FUSE/ RELAY PANEL) FUSE 51 CRUISE CONTROL MODULE (UNDER CENTER CONSOLE) CRUISE CONTROL SWITCH CRUISE CONTROL VACUUM PUMP D/11 E/3 E/4 FUSE 14 FUSE 20 FUSE/ RELAY PANEL (BEHIND LEFT SIDE OF DASH) FUSE/RELAY PANEL (BEHIND LEFT SIDE OF DASH) GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT IN RUN OR START INSTRUMENT CLUSTER JUNCTION CONNECTOR (BEHIND FUSE/ RELAY PANEL) NCA WIRE RED WIRE RED/YEL WIRE TRANSMISSION CONTROL MODULE (TCM) (BELOW REAR SEAT) VIO WIRE W/1 W/4 WHT WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE DEFOGGER HEATING ELEMENT FUSE 9 FUSE/ RELAY PANEL (BEHIND LEFT SIDE OF DASH) GRN WIRE GRY WIRE HOT IN ON ILLUM- INATION LAMP K/12 LEFT HEATED MIRROR NCA WIRE ON INDICATOR P/2 P/3 REAR WINDOW DEFOGGER REAR WINDOW DEFOGGER SWITCH RIGHT HEATED MIRROR WHT WIRE YEL WIRE

1995 VFTC 2.0L 2.0L 2.8L 2.8L A/C AND FRESH/RECIRC SWITCH A/C CLUTCH A/C CUT OUT THERMAL SWITCH/THIRD SPEED COOLANT A/C PRESSURE SWITCH A/C SWITCH AFTERRUN COOLANT FAN CONTROL THERMAL SWITCH AMBIENT TEMPERATURE SWITCH (RIGHT PLENUM CHAMBER) BATTERY 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/RED WIRE BRN/WHT WIRE COOLANT FAN COOLANT FAN CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) COOLANT FAN CONTROL THERMOSWITCH COOLANT PUMP D/3 FAN SWITCH (2.8L ONLY) (CENTER OF ENGINE COMPT) FRESH AIR BLOWER FRESH AIR BLOWER SERIES RESISTANCE FRESH AIR BLOWER SWITCH FRESH/ RECIRC SWITCH FRESH/RECIRC FLAP SWITCH FUSE 108 FUSE 107 FUSE 13 FUSE 19 FUSE 4 FUSE 6 FUSE 78 FUSE/ RELAY PANEL GRN WIRE GRN/BLK WIRE GRN/BLU (OR GRN) WIRE GRN/BLU WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN OR START MOTRONIC ENGINE CONTROL MODULE NCA WIRE Q/2 RED WIRE RED/BLK WIRE RED/WHT WIRE WIRE CONNECTOR YEL WIRE

AIR CONDITIONING SYSTEM BATTERY BATTERY GROUND BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/RED WIRE BRN/YEL WIRE DATA LINK CONNECTOR (CENTER OF DASH) ENGINE SPEED SENSOR (FRONT CENTER OF ENGINE COMPT) FUEL PUMP FUEL PUMP RELAY FUSE 15 FUSE 18 FUSE 88 FUSE/ RELAY PANEL FUSE/RELAY PANEL GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE IGNITION INSTRUMENT CLUSTER SYSTEM INSTRUMENT CLUSTER SYSTEM (CONTROL MODULE/ DISPLAY UNIT) INSTRUMENT CLUSTER VEHICLE SPEED SIGNAL JUMPER CONNECTOR M/1 M/2 MOTRONIC ENGINE CONTROL MODULE NCA WIRE RED WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SECONDARY AIR INJECTION (AIR) PUMP MOTOR SECONDARY AIR INJECTION (AIR) PUMP RELAY TRANSMISSION CONTROL MODULE TRANSMISSION CONTROL SYSTEM VIO/WHT WIRE W/1 WHT WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/RED WIRE Z/2

BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE CAMSHAFT POSITION SENSOR (FRONT CENTER OF ENGINE COMPT, ON DISTRIBUTOR) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (FRONT CENTER OF ENG COMPT) FUEL INJECTORS GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE GRY/RED WIRE HEATED OXYGEN SENSOR IGNITION COIL IGNITION COIL POWER OUTPUT STAGE IGNITION DISTRIBUTOR INSTRUMENT CLUSTER SYSTEM (CONTROL MODULE/ DISPLAY UNIT) INTAKE AIR TEMPERATURE (IAT) SENSOR (RIGHT CENTER OF ENG COMPT) KNOCK SENSOR (KS) (ON LEFT SIDE OF ENGINE BLOCK) MASS AIR FLOW (MAF) SENSOR (RIGHT SIDE OF ENGINE COMPT, ON AIR DUCT) NCA WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SECONDARY AIR INJECTION (AIR) SOLENOID VALVE THROTTLE VALVE CONTROL MODULE (RIGHT REAR SIDE OF ENGINE COMPT) VEHICLE SPEED SENSOR WHT WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/RED WIRE

A/C SYSTEM A/T CONTROL MODULE A/T ONLY BATTERY BATTERY GROUND BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLU RED/ WIRE BLU WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE ECM POWER RELAY ENGINE SPEED SENSOR FUEL PUMP RELAY FUEL PUMP WARNING INDICATOR MODULE (MIL) FUSE 18 FUSE 88 FUSE/ RELAY PANEL FUSE/RELAY PANEL FUSE/RELAY PANEL INSTRUMENT CLUSTER SYSTEM (PIN 10) GI/10 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE IGNITION IGNITION COIL INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM (PIN 26) JUMPER CONNECTOR JUNCTION CONNECTOR M/1 M/2 MOTRONIC ENGINE CONTROL MODULE NCA WIRE RED WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE SECONDARY AIR INJECTION PUMP MOTOR SECONDARY AIR INJECTION RELAY SECONDARY AIR INJECTION SOLENOID VALVE TOP OF ENGINE) VEHICLE SPEED OUTPUT VEHICLE SPEED SENSOR VIO WIRE VIO/WHT WIRE W/1 WHT RED/ WIRE WHT WIRE WHT/RED WIRE Y/1 YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/RED WIRE Z/2

BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/YEL WIRE CAMSHAFT POSITION SENSOR DIAGNOSTIC CONNECTOR EGR TEMPERATURE SENSOR EGR VACUUM REGULATOR VALVE ENGINE COOLANT TEMPERATURE (ECT) SENSOR EVAP CANISTER PURGE REGULATOR VALVE FUEL INJECTORS GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HEATED OXYGEN SENSOR HEATED OXYGEN SENSOR CONTROL MODULE IDLE AIR CONTROL (IAC) VALVE INTAKE AIR TEMPERATURE (IAT) SENSOR JUNCTION BLOCK KNOCK SENSOR (KS) 1 KNOCK SENSOR (KS) 2 MASS AIR FLOW (MAF SENSOR) NCA WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE THROTTLE POSITION SENSOR TOP OF ENGINE) VIO WIRE WHT WIRE WHT/RED WIRE YEL WIRE