Can you & how do you run jake tests with cat et. Found it under diagnostic tests & put it in active but nothing happens. Whats going on here. Have cat et 2011. Or am I barkin up the wrong tree. Thanks in advance.
Cat et question
Discussion in 'Trucks [ Eighteen Wheelers ]' started by DON81, May 4, 2013.
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I believe it just tells you if the Jake switch is on. It helps you diagnose whether the problem is from dash switch and wiring or on engine side of ecm.
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Cat ET jake test will energize the solenoids on the jake heads, allows you to check the driver circuits of the ecm, and switch positions of each stage.
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Not sure about Jake test. I have ET2007b and it does injector solenoid test but nothing for Jakes ....just shows active or inactive.
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Thanks for the input.
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