I have a gremlim in my yellow submarine that is driving me nuts! I have a battery drain on my truck, that i cany seem to locate. i unhook the batteries, put my ammeter between the negative cable and negative post. Amp jump to 13a, then fall to a 1A load. i have pulled every fuse, every relay i can find, no change. being an electrician, i am leaning towards some sort of winding, because it acts like inrush current? but vehicle electician, i am not. so I need some pointers. Any ideas?

 

Normal really. When you're putting power back to all the modules, the electronics such as capacitors have to be "filled" with electrons waking up all the modules showing a draw. Any modern vehicle sparks when you first hook up a new battery. Was this discussed once already in another thread? I'm having Déjà vu.

 

i found it! bad button on the seat. stuck closed. now has only 1/2A with the doors shut. I think that is more reasonable. it had sand all on it.

 

You are right about that, but 13A is a quit large number in my opinion charging caps and powering on electronics. the seat switch was bad stuck in the reward position internally. i somehow overlooked the fuse on my original test.

 

I must of misread your post. I thought you were only seeing a quick spike when you're hooking up the batts. A stuck seat switch will surely cause a constant.
Glad you found it.

 

PMax, shorter then the real time response rate, is a little up there. An ammeter with a shorter refresh rate then the little ammeter should show something between the two.


https://youtu.be/TlooMRHrjxU


Kind of explains the energetic blue spark.