What is the method for detecting car leakage with a multimeter?
1 Answers
The method for detecting car leakage with a multimeter is: 1. Set the multimeter's knob to the current measurement mode; 2. After selecting the range, insert the red probe into the corresponding socket; 3. After adjusting the multimeter, turn off the car engine and all electrical devices, and lock the doors; 4. Open the hood, disconnect the negative terminal of the battery, connect the red probe of the multimeter to the car body's ground wire, and connect the black probe to the negative terminal of the battery, then observe the current displayed on the multimeter. The reasons for car leakage are: 1. Short circuit or oxidation shedding of the battery plates leading to self-discharge and power loss; 2. Grounding caused by electronic components and circuits of car electrical devices, wiring harnesses, sensors, controllers, and actuators.