GMC Sonoma II (1994-2004) Heater circuit

0.26 OHMS 0.71 OHMS 2.10 OHMS 8 CM FROM BREAKOUT TO RADIO) AIR TEMPERATURE ACTUATOR (ON TOP RIGHT SIDE OF HEATER) BI-LEVEL BI-LEVEL BLEND HEAT VENT BLEND VENT HEAT BLK WIRE BLOWER MOTOR (ON RIGHT REAR OF ENGINE COMPARTMENT) BLOWER MOTOR RELAY (ON CENTER REAR OF ENGINE COMPARTMENT) BLOWER MOTOR RESISTOR (ON RIGHT REAR OF ENGINE COMPARTMENT, ON BLOWER MODULE) BLOWER SWITCH BRN WIRE DEFROST DEFROST OFF DK BLU WIRE GRY WIRE HEATER CONTROLLER HOT AT ALL TIMES HOT IN PARK, HEAD HOT IN RUN HVAC 1 FUSE 21 HVAC FUSE HVAC FUSE 9 I/P FUSE BLOCK (ON LEFT END OF DASH) ILLUM ILLUM FUSE 12 LOW MED 1 MED 2 LT BLU WIRE MODE DOOR SWITCH OFF ORG/ WIRE PPL SERVO AMPLIFIER TAN WIRE TEMP CONTROL UNDERHOOD FUSE BLOCK (ON TOP OF LEFT FRONT INNER WHEELWELL)