Application Note

5 Fluke Corporation Top 10 visual IR thermometer automotive applications
With a quick scan of the rear
window, you can verify that
the entire defroster grid works
properly.
[
8. Rear defrosters
]
Defroster warming up. Normally functioning defroster grid.
For a solenoid that controls aux-
iliary equipment, you can see at
a glance whether it’s on, and if
there’s any heat build up where
there shouldn’t be. For example,
the heat at this output terminal
where a crimp lug was installed
could indicate a loose connection
that is worth investigating.
[
9. Solenoids
]
Auxiliary solenoid with loose lug crimp. Corroded starter solenoid terminal.