Tech_00 This is a gatekeeping free zone. A place for technicians to share universal tips of the trade.
tech_1cdbec6a Parasitic draw? Measure voltage drop across all fuses. The voltage drop corresponds to the current flowing through the fuse and will tell you which circuit has the draw. Better than pulling fuses one by one or accidentally waking modules back up.
tech_76e3bbf0 tech_1cdbec6a what also helps when chasing a draw is to leave all doors, trunk and hood open and LATCHED. Put the keys far away so all the modules will go back to sleep. Then you can pull anything apart that you need to.
tech_44509cac tech_1cdbec6a if you got the money using a amp clamp that reads down to 1 mv around the battery terminal positive or any legs of the battery example to a fuse block When using an amp clamp that reads this low any electrical device or magnet will mess with the readings so no watches no phones or anything near the amp clamp meter And when installing the clamp around the cable has to be zeroed at the same angle degree and tilt as it's going to be measured at when installed around the cable so zeroing the meter at the exact angle before clamping it on to the cable is required you should zero it right in front of the cable at the angle you clamp it on then open the clamp and make sure it closes fully This will read you out the mv drain most higher feature cars may have a draw of up to 55mv older stuff you will probably around 25mv