× 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: Test lite & wire piercing
Posted to Technical Tips Forum on 9/27/2010

Hi Steve,

[...trimmed text...]

It needs to be around 22 ohms or the PCM won't ground it...the testlight does have some limitations and that is one of them.

Login to read more.