Multimeter – Your Onboard Electrical Tester
The multimeter function, also known as a volt-ohm-milliammeter (VOM), is a powerful tool built into the V500 Pro. It allows you to measure key electrical properties such as voltage, resistance, current, and diodes in your vehicle.
For example, if you own a 2016 Toyota Corolla and notice dim headlights, you can use the V500 Pro multimeter to measure the battery voltage. If the reading drops below 12V, it may indicate a weak battery that needs charging or replacement. With this feature, diagnosing electrical issues becomes faster, easier, and more accurate.
The bottom of the interface is the functional area, from left to right are: Voltage, Resistance, Diode, Current, Frequency and Polarity.
How to Operate the V500 Pro Multimeter
You can press the "Left" or "Right" button to select the test mode.
(1) Voltage (VDC): Connect the probe clip (auxiliary ground lead) to the negative pole, and connect the probe tip to the mea- sured voltage.
(2) Resistance (OHM): Connect the probe clip (auxiliary ground lead) to one side of the Resistance being measured, and the probe tip to the other side.
(3) Diode (DIO): Connect the probe clip (auxiliary ground lead) to one side of the Diode being measured, and the probe tip to the other side. Meanwhile it will display the voltage and show Positive and Negative of Diode.
(4) Current (AMP): The probe is connected in series in the circuit under test, it will display the current value.(5) Frequency (HZ): Display the frequency of the measured signal and duty cycle value.
(5) Polarity: Display whether the current measured line is positive or negative.
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NOTE:
When testing the current, make sure the wires are in series connection, not in parallel connection. If they are in parallel connection, it will cause the device to trigger the overload protection and then restart. If you have any questions while using the V500 Pro, feel free to contact us at service@vdiagtool.com
