Avalanche 4WD V8-5.3L (2011)
Circuit Protection - Fuses
Circuit Protection - Fuses
Special Tools
EL-39200 - Digital Multimeter (DMM)
For equivalent regional tools, refer to Special Tools See: Power and Ground Distribution/Tools and Equipment.
The fuse is the most common method of an automotive wiring circuit protection. Whenever there is an excessive amount of current flowing through a
circuit the fusible element will melt and create an open or incomplete circuit. Fuses are a one time protection device and must be replaced each time the
circuit is overloaded. To determine if a fuse is open, remove the suspected fuse and examine if the element in the fuse is broken (2). If not broken (1),
also check for continuity using a Digital Multimeter (DMM) or a continuity tester. If the element is broken or continuity is suspect, replace the fuse with
one of equal current rating.
Circuit Protection - Fusible Links
