Ford Thunderbird X (1988-1997) primary junction block 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

BLK WIRE DATA LINK CONNECTOR (BEHIND I/P, BELOW GLOVE BOX) DLC HOT AT ALL TIMES LT BLU WIRE OBD II ORG/ WIRE PNK WIRE POWERTRAIN CONTROL MODULE (BEHIND RIGHT COWL PANEL) DLC PPL PRIMARY JUNCTION BLOCK TAN WIRE YEL WIRE

2 3 4 5 PNK 498 WIRE ABS DIODE (LEFT SIDE OF I/P) ABS MOTOR RELAY ABS TEST CONN (LEFT SIDE OF ENGINE COMPT) ABS TEST CONN INPUT ANTI/LOCK BRAKE CONTROL MODULE (LEFT FRONT CORNER OF ENGINE COMPT) ANTI/LOCK BRAKE FLUID LEVEL SW (LEFT FRONT OF ENGINE COMPT) ANTI/LOCK BRAKE PEDAL TRAVEL SW (LEFT REAR CORNER OF ENGINE COMPT) ANTI/LOCK BRAKE POWER RELAY (POWER DISTRIBUTION BOX) ANTI/LOCK IND RUN POWER L REAR VALVE INLET RT REAR VALVE INLET ANTI/LOCK INDICATOR ANTI/LOCK PUMP MOTOR RELAY (LEFT FRONT OF ENGINE COMPT) BLK 57 WIRE BLK WIRE BLK/LT BLU 960 WIRE BLK/LT BLU WIRE BLK/YEL WIRE BRAKE SW (ON BRAKE PEDAL SUPPORT) BRAKE SW INPUT BRN 492 WIRE BRN WIRE BRN/PNK 513 WIRE BRN/PNK WIRE CLUSTER FUSE DK GRN 603 WIRE DK GRN WIRE FLUID LEVEL SW INPUT GROUND GRY 959 WIRE GRY WIRE GRY/BLK 499 WIRE GRY/BLK WIRE GRY/RED 455 WIRE GRY/RED WIRE GRY/YEL 467 WIRE HOT AT ALL TIMES HOT AT ALL TIMES HOT IN RUN HOT IN RUN HOT IN RUN PRIMARY JUNCTION BLOCK FUSE INDICATOR LAMP MODULE INSTRUMENT CLUSTER L FNT VALVE INLET RT FNT VALVE OUTLET L FNT VALVE OUTLET SWITCHED POWER LEFT FRONT BRAKE SENSOR LEFT FRONT INLET LEFT REAR BRAKE SENSOR LEFT REAR INLET LT BLU 677 WIRE LT BLU WIRE LT BLU/PNK 601 WIRE LT BLU/PNK WIRE LT BLU/RED 535 WIRE LT BLU/RED WIRE LT GRN 511 WIRE LT GRN WIRE LT GRN/BLK 519 WIRE LT GRN/BLK WIRE LT GRN/RED 518 WIRE LT GRN/RED WIRE ORG 496 WIRE ORG/ WIRE ORG/RED 604 WIRE ORG/RED WIRE ORG/YEL 532 WIRE ORG/YEL WIRE OUTLET OUTLET PNK WIRE PNK/BLK 524 WIRE PNK/BLK WIRE PNK/LT BLU 539 WIRE PNK/LT BLU WIRE POWER FUSE 6 FUSE 8 DISTRIBUTION BOX PPL PPL 462 PPL/ORG WIRE PRIMARY PRIMARY JUNCTION BLOCK RED/PNK 523 WIRE RED/PNK WIRE RED/YEL WIRE RIGHT FRONT BRAKE SENSOR RIGHT FRONT INLET RIGHT REAR BRAKE SENSOR RIGHT REAR INLET RT REAR VALVE OUTLET RUN WIRE SOLENOID CTRL VALVE BODY (LEFT FRONT OF ENGINE COMPT) SOLID STATE STOP/ ANTI/LOCK HAZ FUSE JUNCTION BLOCK SV #2 TAN 495 WIRE TAN WIRE TAN/BLK 522 WIRE TAN/BLK WIRE TAN/ORG 521 WIRE TAN/ORG WIRE TAN/RED 510 WIRE TAN/RED 533 WIRE TAN/RED WIRE TAN/YEL WIRE TRACTION ASSIST INDICATOR WHT 497 WIRE WHT WIRE WHT/LT BLU 606 WIRE WHT/LT BLU WIRE YEL/BLK 516 WIRE YEL/BLK WIRE YEL/LT GRN 550 WIRE YEL/RED 514 WIRE YEL/RED WIRE

100- 150 2200 OHMS 40/ 75 OHMS 50,000 OHMS A/T BLK 57 WIRE BLK WIRE BLK/LT GRN WIRE BRAKE ON/OFF SW (ON BRAKE PEDAL BRAKE SW INPUT BRN/LT GRN 149 WIRE CLOCKSPRING CLUTCH PEDAL POSITION SW (ON TOP OF CLUTCH PEDAL SUPPORT) CLUTCH PEDAL POSITION SW JUMPER CONTROL SWS INPUT CRUISE CONTROL AMPLIFIER (BEHIND RIGHT SIDE OF I/P) CRUISE CONTROL SERVO (INSIDE LEFT FRONT FENDER) CRUISE CONTROL SW ASSEMBLY DK BLU WIRE EXCEPT SUPERCOUPE W/ A/T FEEDBACK POT NEG FEEDBACK POT POS FEEDBACK POT SIG GROUND GRY/BLK 145 WIRE GRY/BLK 679 WIRE GRY/BLK WIRE GRY/RED WIRE HORN RELAY HORN SWS HOT AT ALL TIMES HOT IN ACC OR RUN IGNITION LT BLU/PNK 151 WIRE LT BLU/PNK WIRE LT GRN WIRE LT GRN/RED WIRE M/T NCA WIRE OHMS OHMS OHMS ON OFF ORG/YEL 144 WIRE PNK/ORG 676 WIRE PNK/ORG WIRE PPL/LT BLU 147 WIRE PRIMARY JUNCTION BLOCK RED/LT GRN (OR LT GRN) WIRE RED/LT GRN 810 WIRE RED/LT GRN WIRE RESUME SECONDARY JUNCTION BLOCK (BEHIND I/P RIGHT SIDE OF STEERING COLUMN) SECONDARY JUNCTION BLOCK (BEHIND I/P RIGHT SIDE OF STEERING COLUMN) A/T SET/ COAST ACCEL SOL FEED STOP HAZ SUPERCOUPE W/ A/T SUPPORT) VACUUM SOL CONTROL VEHICLE SPEED SENSOR (VSS) (LEFT REAR OF TRANSMISSION) VENT SOL CONTROL VSS GROUND VSS SIGNAL WHT/PNK 146 WIRE WHT/PPL 296 WIRE WHT/PPL WIRE YEL/RED 148 WIRE

BLK WIRE BRN/LT BLU WIRE DEFROST RELAY FUSE FUSE 14 HOT AT ALL TIMES HOT IN RUN LT BLU/RED WIRE OFF ON INDICATOR ON OFF POWER DISTRIBUTION BOX PPL/ORG WIRE PRIMARY JUNCTION BLOCK REAR WINDOW DEFROST GRID REAR WINDOW DEFROST SWITCH RUN WIRE SECONDARY JUNCTION BLOCK (BEHIND RIGHT SIDE OF I/P) SOLID STATE SWITCH ILLUMINATION YEL WIRE