GMC Cab & Chassis K2500 (1989-2000) Manual transfer case circuit, with light duty transmission

A/T AUXILIARY BATTERY RELAY BLK WIRE BLK/WHT WIRE BRN WIRE CONVENIENCE CENTER (LEFT SIDE OF DASH) DIESEL FROM ABS CONTROL MODULE) FRONT AXLE ACTUATOR FUSE 24 GASOLINE GRY WIRE GRY/BLK WIRE HOT IN PARK OR HEAD HOT IN RUN I/P FUSE BLOCK (LEFT SIDE OF DASH, ILLUM FUSE 14 INDICATOR M/T N/A POWERTRAIN CONTROL MODULE (DIESEL) SEAT BELT SWITCH SPARE POWER SOURCE TRANSFER CASE MODE SELECTOR ILLUMINATION LAMP TRANSFER CASE SWITCH (TOP LEFT OF TRANSFER CASE) VEHICLE CONTROL MODULE (GASOLINE) (LEFT SIDE OF ENGINE COMPT)