I have a 2021 GMC Canyon Elevation, with approximately 12,000 miles, with a battery drain. It has been in the dealer's shop for 8 months total, with one break for a couple weeks when I was told it was fixed. It wasn't. We took it on one trip, but after a few idle days (3-4) the battery was dead again. On the way home the "service front camera" message appeared briefly. The battery has been replaced once and it will take a charge. Originally I was told the problem was was the front camera which was replaced. They have also replaced the body control module, I believe twice. Now they are telling me that there are problems with programming the body control module to operate the front camera. Are you aware of this type problem, and do you believe it is something that can be fixed.
CW is using some pretty expensive, specialized equipment, that most people aren't going to buy. This can be done with an ordinary multimeter.
I bought his equipment and it made my life a lot easier. To each their own.
Are you aware of this type problem, and do you believe it is something that can be fixed.
electrical is a weak spot for GM. Problems like this are not that uncommon.
do you believe it is something that can be fixed.
Anything can be fixed, by the right person. Unfortunately, it sounds like your dealership is not up to the task.
A lot of mechanics struggle with electrical troubleshooting. It seems to be a rare skill.
It has been in the dealer's shop for 8 months total
Look up your state lemon laws. In some place they have 30 days to fix something before they have to replace the vehicle, or buy it back from you.
Rent an inductance meter (I think that's what it's called, I used to work at an electroplating company, they used them to verify the amperage is right). It's a simple device that closes around the cable in question to measure induction. It should read 0. If you have a drain, you will notice right away. Start pulling out fuses and replacing them, one at a time, until you find what's causing the drain. Then, once you find it, look for what could be causing it.
good DC-capable current clamp meters are expensive, and they're not terribly sensitive in the sub-1A scales.
You're better off using the 10/20A range on any regular multimeter.
I didn't know that. They use converters to turn AC into DC to plate. I hadn't considered potential cost. Good to know.
my vehicle actually has current clamp sensor on the ground cable next to the battery. I can read with a diagnostic tool.
Cool. I didn't know those existed. Haha.