What to do when a draw on a Fuse goes away?
Unplug each component in that fuse’s circuit till the draw goes away. For example, if the fuse controls the radio and power antenna, plug the fuse back in and unplug the antenna. If the draw goes away, you’ve narrowed it down to the power antenna.
How do you test the voltage of a fuse?
Place the positive and negative test probe on each side of a single fuse. Record the absolute voltage value. Ignore negative voltage readings or switch your test probe orientation if seeing the negative symbol distracts you. Record the amount of voltage drop present.
How to test parasitic draw via Fuse Voltage drop?
This test will show you how to quickly pinpoint the source of the draw using voltage drop across fuses. This method is fast and efficient in comparison to monitoring current and removing fuses. Using this method prevents the vehicle from waking up during the test, causing you to have to start over from sleep mode. Text instructions below video:
How to do a battery parasitic drain test?
not present Voltage Drop Measured in mV for Fu 30A Fuse 2 25A Fuse 2 20A Fuse 1 15A Fuse 1 .1mV . .062A . .046A . .030A . .020A . .5mV . .306A . .230A . .150A . .110A . 1mV . .610A . .460A . .300A . .220A . 2mV 1 1.230A . .930A . .600A . .450A .
How can I find out if my battery drain is faulty?
To locate the faulty circuit, start pulling out fuses, one at a time, from each of your vehicle’s fuse boxes. Begin with the under-hood fuse box, if there’s one. Pull one of the fuses and watch your meter’s reading.
This test will show you how to quickly pinpoint the source of the draw using voltage drop across fuses. This method is fast and efficient in comparison to monitoring current and removing fuses. Using this method prevents the vehicle from waking up during the test, causing you to have to start over from sleep mode. Text instructions below video:
Place the positive and negative test probe on each side of a single fuse. Record the absolute voltage value. Ignore negative voltage readings or switch your test probe orientation if seeing the negative symbol distracts you. Record the amount of voltage drop present.
Where can I get an amperage battery drain test?
However, your local public library may have a copy of the manual in the reference section as well. The amperage battery drain test requires disconnecting one of the battery cables. If your car radio or alarm system needs a code to reactivate it after cutting battery power, make sure you know the code to turn it back on.