Ford Thunderbird X (1988-1997) (behind right cowl panel) Wiring diagrams

2 STD FUSE 246 57 PPL BLK WIRE BLK/YEL WIRE BLOWER IN-LINE FUSE HOLDER (BEHIND LEFT SIDE OF I/P, TAPED TO HARNESS) BLOWER MOTOR BLOWER MOTOR SPEED CONTROLLER (BEHIND RIGHT SIDE OF I/P) BRN WIRE BRN/ORG WIRE BRN/WHT WIRE BRN/YEL WIRE COLD ENGINE LOCKOUT SWITCH (TOP RIGHT SIDE OF ENGINE) DEF DK BLU/LT GRN WIRE FUSE GRY/YEL WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN A/C FUSE IGNITION SWITCH JOINT CONNEC- TOR 1 JOINT CONNECTOR 1 LOCK OFF LOWER RADIATOR SUPPORT) LT GRN WIRE LT GRN/ORG WIRE LT GRN/PPL WIRE MAX NORM NORM MAX PANEL OFF ORG/ WIRE ORG/BLK WIRE ORG/RED WIRE OUTSIDE/ RECIRCULATE SOLENOID (BEHIND RIGHT SIDE OF I/P) PAN/FLR FLR FLR/DEF DEF PANEL OFF PAN/FLR FLR FLR/DEF PNK/BLK WIRE PNK/LT GRN WIRE POWER DISTRIBUTION BOX PPL PPL/ORG WIRE PRIMARY JUNCTION BLOCK RED/ORG WIRE RED/YEL WIRE RUN WIRE SECONDARY JUNCTION BLOCK SEMI-AUTOMATIC TEMPERATURE CONTROL MODULE (CENTER OF I/P) SOLID STATE WHT/LT BLU WIRE WHT/ORG WIRE YEL/WHT WIRE

14 17 (3.8L) (4.6L) 13 68 (3.8L) (4.6L) 4.6L ONLY 42 86 (3.8L) (4.6L) A/C CLUTCH COIL A/C CLUTCH CONTROL PCM POWER RELAY A/C HIGH PRESSURE CUTOUT/FAN SWITCH (LOWER RIGHT REAR OF ENGINE ON A/C LINE) A/C-HEATER FUCTION SELECTOR SWITCH BLEND DOOR MOTOR CONTROL (BEHIND CENTER OF I/P, ON PLENUM) BLK WIRE BLK/ORG WIRE BLK/YEL WIRE BLOWER IN-LINE FUSE HOLDER (BEHIND LEFT SIDE OF I/P, TAPED TO HARNESS) BLOWER MOTOR BLOWER MOTOR SWITCH BLOWER RESISTORS (BEHIND RIGHT SIDE OF I/P, IN PLENUM) BRN/ORG WIRE COLD DK BLU WIRE DK BLU/LT GRN WIRE EDF RELAY EDF RELAY CONTROL ELECTRIC COOLING FAN ENGINE CONTROLS SYSTEM FL 3 FL 5 FL 15 FUSE GRY/WHT WIRE GRY/YEL WIRE HEDF RELAY FUEL PUMP RELAY HOT AT ALL TIMES HOT IN RUN HOT IN RUN A/C FUSE HOT IN START OR RUN IGNITION SWITCH IN-LINE FUSE LOCK OFF LT BLU/RED WIRE LT GRN/PPL WIRE LT GRN/WHT WIRE NCA WIRE OFF PAN/FLR FLR DEF/FLR OFF PAN/FLR PANEL FLR NORM DEF/FLR MAX DEF ORG/BLK WIRE PANEL ILLUMI- NATION NORM MAX PNK/LT BLU WIRE PNK/YEL WIRE POWER DISTRIBUTION BOX PPL PPL/ORG WIRE PRIMARY JUNCTION BLOCK RED WIRE RED/LT GRN WIRE RED/ORG WIRE RED/WHT WIRE RED/YEL WIRE RUN WIRE SECONDARY JUNCTION BLOCK SOLID STATE SUPPORT) TAN/LT GRN WIRE TAN/ORG WIRE WARM WHT/LT BLU WIRE YEL WIRE YEL/LT GRN WIRE YEL/RED WIRE

2 STD FUSE 246 57 PPL BLK WIRE BLK/YEL WIRE BLOWER IN-LINE FUSE HOLDER (BEHIND LEFT SIDE OF I/P, TAPED TO HARNESS) BLOWER MOTOR BLOWER MOTOR SPEED CONTROLLER (BEHIND RIGHT SIDE OF I/P) BRN WIRE BRN/ORG WIRE BRN/WHT WIRE BRN/YEL WIRE COLD ENGINE LOCKOUT SWITCH (TOP RIGHT SIDE OF ENGINE) DEF DK BLU/LT GRN WIRE FUSE GRY/YEL WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN A/C FUSE IGNITION SWITCH JOINT CONNEC- TOR 1 JOINT CONNECTOR 1 LOCK OFF LOWER RADIATOR SUPPORT) LT GRN WIRE LT GRN/ORG WIRE LT GRN/PPL WIRE MAX NORM NORM MAX PANEL OFF ORG/ WIRE ORG/BLK WIRE ORG/RED WIRE OUTSIDE/ RECIRCULATE SOLENOID (BEHIND RIGHT SIDE OF I/P) PAN/FLR FLR FLR/DEF DEF PANEL OFF PAN/FLR FLR FLR/DEF PNK/BLK WIRE PNK/LT GRN WIRE POWER DISTRIBUTION BOX PPL PPL/ORG WIRE PRIMARY JUNCTION BLOCK RED/ORG WIRE RED/YEL WIRE RUN WIRE SECONDARY JUNCTION BLOCK SEMI-AUTOMATIC TEMPERATURE CONTROL MODULE (CENTER OF I/P) SOLID STATE WHT/LT BLU WIRE WHT/ORG WIRE YEL/WHT WIRE

A/C CLUTCH COIL A/C CLUTCH CONTROL A/C HIGH PRESSURE CUTOUT/FAN SWITCH (LOWER RIGHT REAR OF ENGINE ON A/C LINE) A/C-HEATER FUCTION SELECTOR SWITCH BLEND DOOR MOTOR CONTROL (BEHIND CENTER OF I/P, ON PLENUM) BLK WIRE BLK/ORG WIRE BLK/YEL WIRE BLOWER IN-LINE FUSE HOLDER BLOWER MOTOR BLOWER MOTOR SWITCH BLOWER RESISTORS (BEHIND RIGHT SIDE OF I/P, IN PLENUM) LO BRN/ORG WIRE COLD DK BLU WIRE DK BLU/LT GRN WIRE EDF RELAY EDF RELAY CONTROL ELECTRIC COOLING FAN ELECTRIC COOLING PUSHER FAN FL 5 FUSE GRY/WHT WIRE GRY/YEL WIRE HEDF 1 RELAY HEDF 2 RELAY FUEL PUMP RELAY HOT AT ALL TIMES HOT AT ALL TIMES POWER DISTRIBUTION BOX PCM POWER RELAY FL 5 HOT IN RUN HOT IN RUN A/C FUSE IGNITION SWITCH LOCK OFF LT BLU/RED WIRE LT GRN/PPL WIRE LT GRN/WHT WIRE NCA WIRE OFF PAN/FLR FLR DEF/FLR OFF PAN/FLR PANEL FLR NORM DEF/FLR MAX DEF ORG/ WIRE ORG/BLK WIRE PANEL ILLUMI- NATION NORM MAX PCM POWER RELAY PNK/LT BLU WIRE PNK/YEL WIRE POWER DISTRIBUTION BOX POWER- TRAIN CONTROL MODULE (BEHIND RIGHT COWL) PPL PPL/ORG WIRE PRIMARY JUNCTION BLOCK PUSHER FAN RELAY (BEHIND LEFT SHOCK TOWER) RED WIRE RED/LT GRN WIRE RED/WHT WIRE RED/YEL WIRE RUN WIRE SECONDARY JUNCTION BLOCK SOLID STATE SUPPORT) TAN/LT GRN WIRE TAN/ORG WIRE WARM WHT/LT BLU WIRE WHT/RED WIRE YEL WIRE YEL/LT GRN WIRE YEL/RED WIRE

2 STD FUSE 246 57 PPL BLK WIRE BLK/YEL WIRE BLOWER IN-LINE FUSE HOLDER (BEHIND LEFT SIDE OF I/P, TAPED TO HARNESS) BLOWER MOTOR BLOWER MOTOR SPEED CONTROLLER (BEHIND RIGHT SIDE OF I/P) BRN WIRE BRN/ORG WIRE BRN/WHT WIRE BRN/YEL WIRE COLD ENGINE LOCKOUT SWITCH (TOP RIGHT SIDE OF ENGINE) DEF DK BLU/LT GRN WIRE FUSE GRY/YEL WIRE HOT AT ALL TIMES HOT IN RUN HOT IN RUN A/C FUSE IGNITION SWITCH JOINT CONNEC- TOR 1 JOINT CONNECTOR 1 LOCK OFF LOWER RADIATOR SUPPORT) LT GRN WIRE LT GRN/ORG WIRE LT GRN/PPL WIRE MAX NORM NORM MAX PANEL OFF ORG/ WIRE ORG/BLK WIRE ORG/RED WIRE OUTSIDE/ RECIRCULATE SOLENOID (BEHIND RIGHT SIDE OF I/P) PAN/FLR FLR FLR/DEF DEF PANEL OFF PAN/FLR FLR FLR/DEF PNK/BLK WIRE PNK/LT GRN WIRE POWER DISTRIBUTION BOX PPL PPL/ORG WIRE PRIMARY JUNCTION BLOCK RED/ORG WIRE RED/YEL WIRE RUN WIRE SECONDARY JUNCTION BLOCK SEMI-AUTOMATIC TEMPERATURE CONTROL MODULE (CENTER OF I/P) SOLID STATE WHT/LT BLU WIRE WHT/ORG WIRE YEL/WHT WIRE

14 17 (3.8L) (4.6L) 13 68 (3.8L) (4.6L) 4.6L ONLY 42 86 (3.8L) (4.6L) A/C CLUTCH COIL A/C CLUTCH CONTROL PCM POWER RELAY A/C HIGH PRESSURE CUTOUT/FAN SWITCH (LOWER RIGHT REAR OF ENGINE ON A/C LINE) A/C-HEATER FUCTION SELECTOR SWITCH BLEND DOOR MOTOR CONTROL (BEHIND CENTER OF I/P, ON PLENUM) BLK WIRE BLK/ORG WIRE BLK/YEL WIRE BLOWER IN-LINE FUSE HOLDER (BEHIND LEFT SIDE OF I/P, TAPED TO HARNESS) BLOWER MOTOR BLOWER MOTOR SWITCH BLOWER RESISTORS (BEHIND RIGHT SIDE OF I/P, IN PLENUM) BRN/ORG WIRE COLD DK BLU WIRE DK BLU/LT GRN WIRE EDF RELAY EDF RELAY CONTROL ELECTRIC COOLING FAN ENGINE CONTROLS SYSTEM FL 3 FL 5 FL 15 FUSE GRY/WHT WIRE GRY/YEL WIRE HEDF RELAY FUEL PUMP RELAY HOT AT ALL TIMES HOT IN RUN HOT IN RUN A/C FUSE HOT IN START OR RUN IGNITION SWITCH IN-LINE FUSE LOCK OFF LT BLU/RED WIRE LT GRN/PPL WIRE LT GRN/WHT WIRE NCA WIRE OFF PAN/FLR FLR DEF/FLR OFF PAN/FLR PANEL FLR NORM DEF/FLR MAX DEF ORG/BLK WIRE PANEL ILLUMI- NATION NORM MAX PNK/LT BLU WIRE PNK/YEL WIRE POWER DISTRIBUTION BOX PPL PPL/ORG WIRE PRIMARY JUNCTION BLOCK RED WIRE RED/LT GRN WIRE RED/ORG WIRE RED/WHT WIRE RED/YEL WIRE RUN WIRE SECONDARY JUNCTION BLOCK SOLID STATE SUPPORT) TAN/LT GRN WIRE TAN/ORG WIRE WARM WHT/LT BLU WIRE YEL WIRE YEL/LT GRN WIRE YEL/RED WIRE

20 21 22 23 PNK WIRE AIR CONDITIONING SYSTEM (A/C HIGHT PRESSURE CUTOUT/FAN SW) BLK WIRE BLK/ORG WIRE BLK/WHT WIRE BRN/LT BLU WIRE BRN/LT GRN WIRE BRN/PNK WIRE BRN/WHT WIRE BRN/YEL WIRE CAMSHAFT POSITION (CMP) SENSOR (TOP FRONT OF ENGINE) CID IAT VREF PFE CLUSTER FUSE DK BLU/ORG WIRE DK GRN WIRE DK GRN/WHT WIRE DK GRN/YEL WIRE EGR VACUUM REGULATOR (EVR) SOLENOID (RIGHT SIDE OF SAFETY WALL) EVR FUEL PUMP/FUEL GAUGE SENDER (TOP OF FUEL TANK) GRY WIRE GRY/BLK WIRE GRY/LT BLU WIRE GRY/ORG WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HOT IN RUN OR START INERTIA FUEL SHUTOFF SW (LEFT SIDE OF TRUNK) INJ 4 SPOUT VPWR EPC INJ 3 PWR GND TCS ACP PNK WIRE INJECTORS IDLE AIR CONTROL (IAC) VALVE #1 INSTRUMENT CLUSTER LEFT LT BLU/ORG WIRE LT BLU/RED WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/ORG WIRE LT GRN/PPL WIRE LT GRN/RED WIRE MALFUNCTION INDICATOR LAMP OCT ADJ MLP ORG/BLK WIRE ORG/RED OR GRY WIRE ORG/RED WIRE ORG/WHT WIRE ORG/YEL WIRE PARK/TURN SIGNAL LAMPS PNK/BLK WIRE PNK/LT BLU WIRE PNK/LT GRN WIRE PNK/ORG WIRE PNK/YEL WIRE POWERTRAIN CONTROL MODULE (PCM) (RIGHT COWL PANEL) PPL PPL/ORG WIRE PRESSURE FEEDBACK EGR (PFE) SENSOR (RIGHT REAR OF ENGINE) PRIMARY JUNCTION BLOCK RED WIRE RED/BLK WIRE RED/YEL WIRE SECONDARY JUNCTION BLOCK SIG RTN TP STI TFI MAF STI DATA LINK CONN SIDE OF ENGINE COMPARTMENT) TACHOMETER TAN WIRE TAN/BLK WIRE TAN/LT BLU WIRE TAN/LT GRN WIRE TAN/ORG WIRE TAN/WHT WIRE TCC WAC TCIL PIP VPWR INJ 1 INJ 2 PWR GND VEHICLE SPEED SENSOR (REAR OF TRANSMISSION) WHT WIRE WHT/LT BLU WIRE WHT/LT GRN WIRE WHT/PNK WIRE WHT/PPL WIRE WHT/YEL WIRE YEL WIRE

AIR CONDITIONING SYSTEM (A/C HIGHT PRESSURE CUTOUT/FAN SW) ARC EVR PFC INJ 4 SPOUT VPWR EPC INJ 3 PWR GND TCS ACP BARO SIG RTN TP STI TFI MAF BLK WIRE BLK/ORG WIRE BLK/WHT WIRE BRN/LT BLU WIRE BRN/LT GRN WIRE BRN/PNK WIRE BRN/WHT WIRE BRN/YEL WIRE CAMSHAFT POSITION (CMP) SENSOR (TOP FRONT OF ENGINE) CLUSTER FUSE COOLING FANS DK BLU/LT GRN WIRE DK BLU/ORG WIRE DK GRN WIRE DK GRN/WHT WIRE DK GRN/YEL WIRE EGR VACUUM REGULATOR (EVR) SOLENOID (RIGHT SIDE OF SAFETY WALL) ELECTRONIC SUSPENSION SYSTEM 386 360 461 FUEL PUMP/FUEL GAUGE SENDER (TOP OF FUEL TANK) GRY WIRE GRY/BLK WIRE GRY/LT BLU WIRE GRY/ORG WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HOT IN RUN OR START IDLE AIR CONTROL (IAC) VALVE #1 (ON THROTTLE BODY) INERTIA FUEL SHUTOFF SW (LEFT SIDE OF TRUNK) INJECTORS INSTRUMENT CLUSTER LEFT LT BLU/ORG WIRE LT BLU/RED WIRE LT BLU/YEL WIRE LT GRN WIRE LT GRN/ORG WIRE LT GRN/PPL WIRE LT GRN/RED WIRE MALFUNCTION INDICATOR LAMP OCT ADJ MLP ORG/ WIRE ORG/BLK WIRE ORG/RED WIRE ORG/WHT WIRE ORG/YEL WIRE PARK/TURN SIGNAL LAMPS PNK WIRE PNK/BLK WIRE PNK/LT BLU WIRE PNK/LT GRN WIRE PNK/ORG WIRE PNK/YEL WIRE POWERTRAIN CONTROL MODULE (PCM) (RIGHT COWL PANEL) PPL/ORG WIRE PRESSURE FEEDBACK EGR (PFE) SENSOR (RIGHT REAR OF ENGINE) PRIMARY JUNCTION BLOCK RED WIRE RED/BLK WIRE RED/YEL WIRE SECONDARY JUNCTION BLOCK STI DATA LINK CONN SIDE OF ENGINE COMPARTMENT) SYSTEM TACHOMETER TAN WIRE TAN/BLK WIRE TAN/LT BLU WIRE TAN/LT GRN WIRE TAN/ORG WIRE TAN/WHT WIRE TCC WAC TCIL PIP VPWR INJ 1 INJ 2 PWR GND VEHICLE SPEED SENSOR (REAR OF TRANSMISSION) WHT WIRE WHT/LT BLU WIRE WHT/LT GRN WIRE WHT/PNK WIRE WHT/PPL WIRE WHT/YEL WIRE YEL WIRE YEL/RED WIRE

23 24 PNK WIRE AIR CONDITIONING SYSTEM BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN/PNK WIRE CKP COIL 1 COIL 2 COIL 3 COIL 4 COMPUTER DATA LINES SYSTEM COOL FAN MNTR COOLING FANS SYSTEM DATA LINK (-) DATA LINK (+) COOL FAN (HI) DK BLU WIRE DK GRN WIRE EGR VAC REG IDM PIP SPOUT PWR GND FUSE FUSE 15 FUSE 3 GRN WIRE GROUND BUS (BEHIND I/P, RIGHT OF STEERING COLUMN) GRY WIRE GRY/ORG WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN RUN OR START HOT IN RUN PRIMARY JUCTION BLOCK (BELOW LEFT SIDE OF I/P) IDM IGN GND IGN GND PWR GND CASE GND IGN PWR IGNITION CONTROL MODULE (RIGHT SIDE OF ENGINE COMPARTMENT) INTEGRATED RELAY CONTROL MODULE (LEFT FRONT CORNER OF ENGINE COMPARTMENT) LEFT IGNITION COIL LEFT RADIO NOISE CAPACITOR LT GRN WIRE LT GRN/PPL WIRE LT GRN/RED WIRE MAF SIG RTN TRANS TEMP ECT SENS IAT SENS FUEL PUMP MNTR A/C CYCL SW ORG/ WIRE ORG/BLK WIRE ORG/RED WIRE ORG/WHT WIRE ORG/YEL WIRE PCM POWER RELAY PIP PNK 8 9 10 WIRE PNK WIRE PNK/BLK WIRE PNK/LT BLU WIRE PNK/LT GRN WIRE PNK/ORG WIRE POWER DISTRIBUTION BOX (LEFT SIDE OF ENGINE COMPARTMENT) POWERTRAIN CONTROL MODULE (BEHIND RIGHT COWL PANEL) PPL PPL FEPS (EPROM) PPL/ORG WIRE RED WIRE RED/LT GRN WIRE RED/ORG WIRE RIGHT IGNITION COIL RIGHT RADIO NOISE CAPACITOR RUN WIRE SECONDARY JUNCTION BLOCK SHIFT SOL 1 SPOUT TAN WIRE TAN/LT BLU WIRE TAN/LT GRN WIRE TAN/ORG WIRE TAN/WHT WIRE TO FUEL PUMP RELAY TO SPARK PLUGS 1, 6 TO SPARK PLUGS 2, 8 TO SPARK PLUGS 4, 7 TO SPARK PLUGS 3, 5 TRANS CTRL SW OCTANE ADJUST TRANSMISSION CONTROL SWITCH VSS WHT WIRE WHT/PNK WIRE YEL WIRE

23 24 PNK WIRE BLK WIRE BLK/YEL WIRE BRN/LT GRN WIRE BRN/PNK WIRE BRN/WHT WIRE CKP SENSOR SHIELD CRANKSHAFT POSITION SENSOR (LOWER RIGHT FRONT OF ENGINE) DK BLU WIRE DK GRN WIRE ENGINE COOLANT TEMPERATURE SENSOR (TOP RIGHT REAR OF ENGINE) FROM PCM POWER RELAY FUEL PUMP RELAY FUSE 13 GRY WIRE GRY/BLK WIRE GRY/ORG WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES ICM SHIELD INSTRUMENT CLUSTER INTAKE AIR TEMPERATURE SENSOR (REAR OF AIR CLEANER ASSEMBLY) INTEGRATED RELAY CONTROL MODULE (LEFT FRONT CORNER OF ENGINE COMPARTMENT) LT BLU/ORG WIRE LT GRN/RED WIRE MALFUNCTION INDICATOR LAMP OCTANE ADJUST PLUG (RIGHT SIDE OF ENGINE COMPARTMENT) ORG/BLK WIRE ORG/RED WIRE ORG/YEL WIRE PNK 8 9 10 WIRE PNK WIRE PNK/BLK WIRE PNK/LT GRN WIRE POWER DISTRIBUTION BOX (LEFT SIDE OF ENGINE COMPARTMENT) PPL/ORG WIRE PRESSURE FEEDBACK EGR SENSOR (RIGHT REAR OF ENGINE) RED WIRE RED/LT GRN WIRE TACHOMETER TAN/LT BLU WIRE THROTTLE POSITION SENSOR (LEFT SIDE OF THROTTLE BODY) TRANSMISSION CONTROL INDICATOR LAMP WHT/LT GRN WIRE WHT/PNK WIRE YEL WIRE