4 CanOBD2&1
E
Safety Precautions
SAFETY FIRST!
To prevent damage to the on-board computer when tak-
ing vehicle electrical measurements, always use a digi-
tal multimeter with at least 10 megOhms of impedance.
Fuel and battery vapors are highly flammable. To pre-
vent an explosion, keep all sparks, heated items and
open flames away from the battery and fuel / fuel
vapors. DO NOT SMOKE NEAR THE VEHICLE DUR-
ING TESTING.
Don't wear loose clothing or jewelry when working on an
engine. Loose clothing can become caught in the fan,
pulleys, belts, etc.Jewelry is highly conductive, and can
cause a severe burn if it makes contact between a
power source and ground.
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