GMC Pickup C2500 (1985-2000) w/ dual horns Wiring diagrams

ASHTRAY LAMP AUDIO ALARM MODULE AUTOMATIC FRONT TRANSFER AUXILIARY CASE POWER SELECT OUTLET SWITCH AUTOMATIC TURN/ TRANSFER HAZARD CASE FLASHER CONTROL MODULE AUXILIARY COOLING FAN MOTOR AUXILIARY HEATER CONTROL SWITCH (UTILITY) BLK WIRE BLK/GRY WIRE BLU WIRE BODY SHOCK CONTROL SENSOR MODULE BRAKE TRANS- MISSION SHIFT JAMB INTERLOCK IGNITION SWITCH SWITCH SWITCH CONVENIENCE CENTER DATA LINK CONNECTOR DAYTIME RUNNING LAMPS MODULE DK BLU WIRE FRONT HEATER, AUXILIARY A/C POWER CONTROL OUTLET SWITCH FRONT WINDSHIELD WIPER/ WASHER PUMP MOTOR GROUND STRAP HORN SWITCH HVAC CONTROL MODULE INFLATABLE CARGO RESTRAINT LAMP I/P MODULE SWITCH ENABLE (PICKUP) SWITCH KEY-IN WARNING BUZZER SWITCH (LUXURY) LEFT BATTERY LEFT FOG LAMP LEFT FRONT PARK/ TURN LAMP LEFT HIGH BEAM HEADLAMP LEFT HIGH/ LOW BEAM HEADLAMP LEFT HORN LEFT LOW BEAM HEADLAMP LIFTGATE FOG RELEASE LAMP SWITCH SWITCH (UTILITY) (LUXURY) LOW COOLANT VEHICLE LEVEL INTERFACE INDICATOR UNIT MODULE (LUXURY) (DIESEL) LUXURY PICKUP ONLY RADIO REAR STEREO CONTROLLER REAR WINDOW WASHER PUMP MOTOR REAR WINDOW WIPER/ WASHER SWITCH (UTILITY) RIGHT FOG LAMP RIGHT FRONT DOOR JAMB CIGAR SWITCH LIGHTER I/P COMPARTMENT LAMP RIGHT FRONT PARK/ TURN LAMP RIGHT HIGH BEAM HEADLAMP RIGHT HIGH/ LOW BEAM HEADLAMP RIGHT HORN RIGHT LOW BEAM HEADLAMP SPARE TRANSFER CASE CONTROL MODULE TRANSFER CASE SELECT SWITCH UNCOATED UNDER- HOOD LAMP W/ DUAL HORNS W/ QUAD HEADLAMPS W/ QUAD HEADLAMPS/ SPORT PACKAGE WINDSHIELD HEADLAMP WIPER, PANEL MOTOR DIMMER MODULE SWITCH

AUDIO ALARM MODULE AUXILIARY COOLING FAN MOTOR BLK WIRE BLK/GRY WIRE BTSI GROUND CIGAR LIGHTER CONVENIENCE CENTER DATA LINK CONNECTOR DAYTIME RUNNING LAMPS MODULE FROM CONVENIENCE CENTER (DIAGRAM 3 OF 4) FRONT WINDSHIELD WIPER/ WASHER PUMP MOTOR HEADLAMP AND PANEL DIMMER SWITCH HEATER AND A/C CONTROL SWITCH HVAC CONTROL MODULE I/P COMPARTMENT ASHTRAY LAMP LAMP IGNITION STEERING SWITCH COLUMN GROUND GROUND INFLATABLE CARGO RESTRAINT LAMP I/P MODULE SWITCH ENABLE (PICKUP) SWITCH LEFT BATTERY LEFT FOG LAMP LEFT FRONT DOOR JAMB SWITCH LEFT FRONT PARK/ TURN LAMP LEFT HIGH/ LOW BEAM HEADLAMP LEFT HORN LEFT LEFT HIGH LOW BEAM BEAM HEADLAMP HEADLAMP LOW COOLANT LEVEL INDICATOR MODULE POWER POWER OUTLET OUTLET RADIO REAR WINDOW WASHER PUMP MOTOR REAR WINDOW WIPER/ WASHER SWITCH REAR WINDOW WIPER/ WASHER SWITCH (SUBURBAN/ UTILITY) RIGHT FOG LAMP RIGHT FRONT DOOR JAMB SWITCH RIGHT FRONT PARK/ TURN LAMP RIGHT HIGH BEAM HEADLAMP RIGHT HIGH/ LOW BEAM HEADLAMP RIGHT HORN RIGHT LOW BEAM HEADLAMP SPARE TRANSFER CASE CONTROL MODULE TRANSFER CASE SELECT SWITCH TURN/ HAZARD FLASHER UNCOATED W/ DUAL HORNS WINDSHIELD WIPER MOTOR MODULE