Join Date: Oct 2018
Location: Willow Park,TX.
Are most problems with "modern" vehicles electrical?
I would say they are. And...therein lies the "rub"......so to speak. Having read multitudinous posts where DIY'S ,upon seeing a code, start changing parts, hoping against hope, they'll "eventually" hit on the problem instead of analyzing the problem and changing the "bad" part. No wonder the auto parts stores' stock are in the hundreds.
It appears most DIY'S are electrically "challenged",............ when a 12 volt system is really simple. There can be only 3 problems; An open, A short to ground,or high resistance. Check and find, or eliminate, these potential problems then the bad part can be changed. It has been shown that an added 1 ohm resistance in a particular circuit can stop a 500 hp diesel engine. As vehicles age loose connections, corrosion, etc. really becomes a problem.
Caveat Emptor: Take the computer out of the circuit before checking.........Or, if your "savey" enuf to check the "reference" voltage,witch is 5, coming out of the computer controlling a particular sensor be very careful not to inadvertently add any load, witch test lights and some volt meters can. Computers are not cheap.
I could be way off base here, but after awhile looking at these forums thats the way I see it.
Last edited by srwa; 09-10-2019 at 07:55 AM.