4WD Engages But 4WD Indicator Light Will Not Light

Check 25-amp 4WD fuse and 5-amp PANEL LAMPS fuse. If okay, test indicator light power circuit. Remove bulb from 4WD indicator light. Attach test light to ground and backprobe White wire terminal of indicator light. If test light lights, replace bulb. If test light does not light, check front axle switch.