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The abs doesn't draw much until active. Pump will draw alot of current if it in and out of TC & ABS tracking , skid pad, sliding around on ice
is there a reason you want to reduce circuit protection?
The abs doesn't draw much until active. Pump will draw alot of current if it in and out of TC & ABS tracking , skid pad, sliding around on ice
is there a reason you want to reduce circuit protection?
Originally Posted by Bill Curlee
GM Engineers wouldn't have put it on a 40 Amp fuse if they didn't think it was necessary.
I have a CarTek PDM unit. Having a 30A protected circuit is easy- 40A is not. In order to do 40A I would use a separate external relay, but I am trying to avoid that. This particular circuit is the largest individual load on my car. I've held the pump and the EBCM in my hand before - it just didn't seem like a close to 40A load (maybe 32-33A if GM left 20% margin). Not sure if it is a wire size or voltage drop limit.
Put an AMP CLAMP on the feed wire and give the EBTCM hell.. That should tell you the spike current and actual current draw under demanding conditions..