Electronics > Beginners
Should I float a scope on a car
JPortici:
All scopes for automotive i've seen were regular scopes, maybe with a different software package.
If you can't connect with a k-line analyzer tool maybe your car doesn't have K-Line.
Which car is it? (Model, year)
Anyway, i suggest you buy an OBD extension cord. Many cars have the port in inconvenient places and it's always easier to work with an extension cord.
And maybe search ebay or other sites for OBD male plugs so you can solder wires to make probing easier. All signals there are low speed anyway so don't be too worried about ringing. It won't happen.
Re: floating the scope, others have already given very good answers. I just want to add that i love my picoscope / tek TPS for this situations, which is why these are my two main scopes at work. At home i use my bench scopes to measure stuff inside the car with no issues whatsoever. Car is floating.
Seamus16:
--- Quote from: JPortici on August 07, 2018, 11:12:36 am ---All scopes for automotive i've seen were regular scopes, maybe with a different software package.
If you can't connect with a k-line analyzer tool maybe your car doesn't have K-Line.
Which car is it? (Model, year)
Anyway, i suggest you buy an OBD extension cord. Many cars have the port in inconvenient places and it's always easier to work with an extension cord.
And maybe search ebay or other sites for OBD male plugs so you can solder wires to make probing easier. All signals there are low speed anyway so don't be too worried about ringing. It won't happen.
Re: floating the scope, others have already given very good answers. I just want to add that i love my picoscope / tek TPS for this situations, which is why these are my two main scopes at work. At home i use my bench scopes to measure stuff inside the car with no issues whatsoever. Car is floating.
--- End quote ---
Thanks for all the replies. The points are well noted
--- Quote ---Which car is it? (Model, year)
--- End quote ---
It is a Fiat Seicento 2002. It does have the OBD2 socket fitted. I have tried several interfaces from Ebay and they have not worked. I am waiting for further one to arrive. I am running MultiEcuScan s/w.
The reason for wanting to check the socket is that over the winter mice chewed through the loom at the bottom of the A post. This seemed to only effect the power steering (now repaired). So I want to be sure that all outlets are working correctly which they seem to be. The K line is the only one I am not sure what voltage it should be giving (1 to 10v ign off/on).
JS:
You should feed your mice better, mine chewed all my main extensions, live and neutral and still alive... poor bunny, I don't know how it survived...
JS
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