How to Test Grounds to ECM Circuit

Short video detailing how to test ECM automotive grounds using a simple scanner graphing capabilities.
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[@rikkmalloy7892]

Thank you for your knowledge and bless you and your future 🙏🏽👍🏾

[@billyyoder8171]

Thank you for sharing your videos. Have a blessed and safe week to you and your family.

[@ADPTraining]

Thank you...

[@isalmankhan1]

Thanks for sharing👍
What an awesome tip to start with, this simple test can save hours of testing😉

[@ADPTraining]

The ideal way is to use a scope, but too time consuming.

[@hectorpena2705]

Very well explain thank you very much sir

[@sobamani1244]

Well done 👍👍👍

[@jgeorges3061]

Good tip thanks for sharing.

[@ADPTraining]

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[@ozzstars_cars]

Watch it wiggle, see it jiggle. Nice find Manny!

[@ADPTraining]

This is a simple quick way.

[@carpro2406]

Nice video 👍 sir

[@ADPTraining]

Thanks for watching

[@M.BilalAutocenter]

Thanx Bro

[@ADPTraining]

Cool

[@arnoldpartida8371]

Hello, I had some body work done on my car and believe I lost ECU ground. Car will crank but no start, no fuel. Multiple Scanners will not link to OBD2 even though I have 12 volts on pin 16. On pins 6 and 14 of OBD2 connector I should read about 60 ohms for CAN high and Low signals but I read read about 180K ohms with battery disconnected. Do you think I lost my grounds? I need to do some more testing but could it be as simple as running new grounds to ECU? I'm a bit of a novice so sorry for the dumb question.

[@tonylove8066]

Its not a dumb question. I have the same issue on my 96 corolla. Crank/no start, no spark, no fuel, battery at 12v, all fuses checked, relays click, new crankshaft sensor, new distributor assembly, new fuel pump assembly, new plugs/wires...and every circuit reads in range on my multimeter and testing light. Yet.... after ALL this, and that....crank/no start. So, Id like to know too....could it be my ECM/U?? To be discovered.......

[@paultavres9830]

My tps ground terminal 1 harness connector to tps has .4 ohm key off but 5.4 ohm key on ??? Any thoughts
Ground to ecm is .3

[@ADPTraining]

Don't use Ohms to test leads. Use voltage and please stress the output. www.autodiagnosticsandpublishing.com/Stress_Loaded_Tester.html

[@Eurospec73]

I think I might have fried out my ECU because the ground wasn't connected to the transmission. Oh well🧐 I guess there's a first time for everything!

[@ADPTraining]

Bummer

[@Eurospec73]

@@ADPTraining It's a very easy thing to do, unfortunately many others have made the same mistake I have, it's the first time it ever happened to me. I don't know if you've ever experienced something like this, but it's the last thing I ever want to see happen. It's quite frustrating!