• Components that operate on 12 Volt power and ground.

    • Examples: light bulbs, power windows, door locks, heated seats, seat motors, radiator fans, blower motors, fuel injectors, 2-wire ignition coils, transmission shift solenoids, fuel pumps, relays, shift lock solenoids, air pumps, solenoids, and motors.

    1. Unplug the component.

    2. Use the DYVO Monster Leads to apply fused 12v battery power and ground to the component. Verify if the component operates.

    1. Unplug the component.

    2. Ensure “LOAD” is displayed on DYVO

    3. Ensure “V” is displayed on DYVO. Not “V LOSS”

    4. Connect the positive channel on DYVO to the positive terminal on the component

    5. Connect the negative channel on DYVO to the negative terminal on the component

    6. Read the values and compare to images below.

    1. Unplug the single wire from the component. Leave the component case grounded

    2. Ensure “LOAD” is displayed on DYVO

    3. Connect the negative channel on DYVO to the terminal on the component

    4. Read the negative channel value: 0.00 means the component is shorted. Battery voltage indicates an open component.

How To Test Components

Open Component

Shorted Component