× 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: International ESC Testing
Posted to HD/Fleet Forum on 5/14/2009 2 Replies

[...trimmed text...]

You need at least 4 wires and a load to bench test a relay. "Clicks" only tells you the control circuit works and the relay mechanically is reasonably free of defects. It does not tell you anything a... Login to read more.

2 Replies Received (View Replies)