× 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: Code 42: EST goes open
Posted to Technical Discussion Forum on 11/23/1998 5 Replies

[...trimmed text...]

The new training art is correct. Congratulations!

The EST signal is always applied to the EST output by the ECM whenever it receives a dref pulse. This is how it runs the 42A test, during crank the ... Login to read more.

5 Replies Received (View Replies)