Why Does My Battery Keep Dying? Parasitic Draw Test and Fix
How To Find Parasitic Draw In Car - How To Find. Make sure that all the doors are closed and the keys are not in the ignition. Find a battery shut off tool or parasitic draw tester tool.
Why Does My Battery Keep Dying? Parasitic Draw Test and Fix
Turn on the multimeter and make sure it’s set for dc, not ac. If there is no success with pulling fuses, start removing the relays. However, there are times when the draw can be very challenging to locate, particularly when the draw is an intermittent problem. It is always best to do a parasitic draw test from the negative side so there is no chance of accidentally shorting should you test from the positive side. Be sure to check your specific car’s wiring diagram first. There will be some activity and loads when you turn your vehicle off, your clock circuit for one. For older cars, an ideal reading is below 50 ma. Knowing the right way to do this test may not be vital, but it will save you a lot of headaches. While that equipment is nice to have, most of use don’t. You should see a symbol like a solid line, with dashes underneath.
Today we are going to be learning how to perform a parasitic current draw test or pid. Be sure to check your specific car’s wiring diagram first. A normal reading for a newer car falls between about 50 to 85 ma. A parasitic draw is an excessive electrical load on the system that happens after the vehicle is turned off. You will need a battery shut off tool or a parasitic draw tester. However, there are times when the draw can be very challenging to locate, particularly when the draw is an intermittent problem. Find a battery shut off tool or parasitic draw tester tool. Locate the fuse panel(s) and start pulling out fuses one after the other, taking notice of any drop in the reading on the multimeter. Now you can check the reading on your multimeter to see what the parasitic drain is. Do look up this test information, as many vehicles today can stay awake for about an hour or have modules turn back on after. While that equipment is nice to have, most of use don’t.
