× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Whelen 9M Wiring Diagram
Posted to HD/Fleet Forum on 9/18/2014

Take all of the lenses off. After you are sure the stored voltage has had time to dissipate, check the strobe lamp wires. They should all lead to a power-pack equipped with capacitors that are at least one inch in dia. Look for the wires that are on this powe... Login to read more.