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What you need to
know about your DMM before you measure a voltage. |
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Why your DMM may not be up to the task of measuring
voltage in vehicles. |
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Why a customer's
battery goes bad while the vehicle is sitting in your shop and
how to prevent it from happening. |
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What you need to
know about the differences in low maintenance and maintenance
free batteries so you don't ruin a customer's battery while vehicle
is in your shop. |
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How to determine
a battery's state of charge and what it tells you. |
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How to load test
a battery in the vehicle without a carbon pile load tester. |
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Why a bad battery
can still crank an engine and what to do about it. |
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The best place to
check the charging voltage in a vehicle and why. |
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Why the charging
voltage is different on different vehicles and what that means. |
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What the battery
does while the engine is running and what not to do. |
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Where the electrical
energy that runs the vehicle comes from and what you need to
know about it. |
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The easy and safe
way to test a generator (alternator) on a vehicle with a DMM. |
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The correct way
to test a generator (alternator) on a vehicle and the how and
why techs have been taught to do it the wrong way. |
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Why voltage drop
tests are essential for uncovering hidden electrical problems. |
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The most common
mistake Techs make doing voltage drop tests. |
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Acceptable voltage
drop DMM readings for major vehicle
circuits. |
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How to use voltage
drop tests to find intermittent electrical problems |
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Learn a series of
step-by-step electrical system tests that verifies proper operation
of a vehicle's primary 14V electrical system in about
5-8 minutes. |