GMC Yukon I (1991-1999) ppl ppl 420 1807 950 brake switch input serial data sig vcm ground ignition wiring diagram

23 24 FOUR WHL DR SIG LO CRUISE CTRL SIG ENG 900 900 SERVICE CIRCUIT POWER SERVICE CIRCUIT POWER A/C REQUEST SIGNAL AIR CONDITIONING SYSTEM BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRAKE FUSE 18 BRAKE SWITCH ASSEMBLY (TOP OF BRAKE PEDAL) BRN WIRE BRN/WHT WIRE CLUTCH PEDAL POSITION SWITCH (AT TOP OF CLUTCH PEDAL) COOLING FANS SYSTEM CRUISE CONTROL MODULE (LEFT REAR SIDE OF ENGINE COMPARTMENT, ON BULKHEAD) DATA LINK CONNECTOR (UNDER LEFT SIDE OF I/P) DISTRIBUTOR DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ECM-B MINI FUSE FORCE MOTOR FEED TRANS INPUT SPEED RTN TRANS INPUT SPEED SIG EST OUTPUT SIG FUEL PUMP PRIME CONNECTOR FUEL PUMP RELAY FUEL PUMP RLY CTRL 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 GRN WIRE GROUND GRY WIRE GRY/BLK WIRE HIGH VOLTAGE COIL WIRE HOT AT ALL TIMES UNDERHOOD FUSE-RELAY CENTER HOT IN RUN I/P FUSE BLOCK IGN BRAKE INPUT INPUT INPUT SW INPUT IGNITION COIL (RIGHT REAR SIDE OF ENGINE) IGNITION COIL DRIVER (RIGHT REAR SIDE OF ENGINE) IGNITION FEED IGN TIMING SIG. IGN COIL OUT IGNITION PRESSURE SWITCH INPUT PRESSURE SWITCH INPUT LT BLU/BLK WIRE LT BLU/WHT WIRE LT VSS ORG/ WIRE PNK IGNITION FOUR WHL DR SIG WIRE PNK PNK PNK WIRE PNK WIRE POWER STEERING CONTROL MODULE (CENTER OF I/P) PPL PPL (OR PPL A/T M/T PPL PPL PPL PPL 420 1807 950 BRAKE SWITCH INPUT SERIAL DATA SIG VCM GROUND IGNITION PPL PPL 420 OR PRESSURE SWITCH INPUT RADIO RED WIRE RED/BLK WIRE SENSOR RETURN SHIFT IND LP OUT SPEED SENSOR SPEED STOPLAMP/ VCM SENSOR CLUTCH SIG INPUT SWITCH INPUT SWITCH SIGNAL TAN/BLK WIRE TRANSFER CASE CONTROL MODULE (UNDER I/P, ON STEERING COLUMN SUPPORT BRACKET) TRANSFER CASE SWITCH (LEFT TOP OF TRANSFER CASE) TRANSMISSIONS SYSTEM (FOUR WHEEL DRIVE INDICATOR CIRCUIT UNDERHOOD FUSE-RELAY CENTER VSS SIG OUT VSS SIG OUT CHECK ENG LP CTRL AUX FAN RELAY 389 419 WHT WIRE WHT/BLK WIRE