Mercury Villager 1993-2000
Nissan Quest 1993-2000
- Isolate the circuit from the vehicle's power source.
- Ensure that the ignition key is OFF when disconnecting any components or the battery.
- Where necessary, also isolate at least one side of the circuit to be checked, in order to avoid reading parallel resistances. Parallel circuit resistances will always give a lower reading than the actual resistance of either of the branches.
- Connect the meter leads to both sides of the circuit (wire or component) and read the actual measured ohms on the meter scale. Make sure the selector switch is set to the proper ohm scale for the circuit being tested, to avoid misreading the ohmmeter test value.