Auto Parasitic Draw Test. In addition to diagnosing and charging a weak battery or if you installed a new one to replace a dead one make sure to verify that the charging system is operating properly. The reading you can see on the multimeter is the amount of parasitic draw your car is facing.
Knowing the right way to do this test may not be vital but it will save you a lot of headaches. You will have to attach one lead with the cable you have removed from the terminal and the other lead to the terminal. The demand of power from the vehicle battery has increased in.
Weak batteries dont give accurate results when performing a draw test.
A parasitic draw test is required when a vehicle battery becomes discharged with the key in the off position. Today we are going to be learning how to perform a Parasitic Current Draw test or PID. How To Perform a Parasitic Draw Test - EricTheCarGuy - YouTube. A component or components are drawing current from the battery when they should not be.
