In this first part of a video series, diagnostics is being done on a 2000 Buick LeSabre with a 3.8L engine. The symptoms are check tire pressure message, ABS…
In this first part of a video series, diagnostics is being done on a 2000 Buick LeSabre with a 3.8L engine. The symptoms are check tire pressure message, ABS…
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Hey Joe, welcome back, long time no hear. You are absolutely correct that
you can’t just drive over smooth roads. When I do a test drive for a
problem child, I have several different types of roads that I go over in my
area. Since I live in the country, the car was driven over smooth roads,
curvy roads, country roads that haven’t been refinished in years and even
in the school parking lot where there are speed bumps. I only showed one
phase of the test drive to keep the video shorter. I cont)…
should have mentioned it in the video, but didn’t think of it. Sorry about
that and good observation on your part. Thanks for the comment Joe!
you made a mistake checking for an intermittent contact by going on a
smooth highway. no bumpy roads? no bad parking lots? no dirt roads around?
Hi Dave, I actually took a look around Youtube and wasn’t really happy with
what I saw out there. That’s why I decided to create a series on ABS
sensors. The videos that will follow will REALLY go into detail how these
sensors work along with the circuit operation. Sensor construction,
operation, wiring diagrams, connector views, relating docs to the world
world, resistance checks, voltage and bias volts along with its discussion.
Wow, a lot of stuff. Second video up and rendering the third now.
Thanks for the video. Interesting. I noticed your voltage was 14.6-14.7
volts. Isnt that high?
Great demo, there aren’t enough of these on Youtube yet, documenting the
inner workings of ABS. I wish I understood that system better. Do you think
the autoenginuity scanner would have picked up these ABS codes?
I’ve noticed that voltage on this car years ago and thought that it might
be a tad high back then, but I feel like its normal for this car. Over the
years, there has never been an issue with batteries or alternators. In
fact, the alternator has never been changed and it’s on it’s 2nd battery
since the car was purchased in 2005. If it got over 15V consistently, then
I would worry there was a problem. Thanks for watching blackwell!
Opps Dave, forgot to thank you for watching and yes, autoenginuity will
pick this up, but only in the enhanced version, not with the generic
version which is what I have. Generic OBDII scanners are only designed to
look at the emission sensors on the engine, not the transmission, chassis
or body modules. To see these other sections, you’ll have to get a scanner
which shows these other options. That’s why I use the Tech2 and not
autoenginuity this time. Thanks again Dave!