GM Blazer/Jimmy/Typhoon/Bravada 1983-1993 Repair Guide

Fuse Block and Fuses

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See Figures 1, 2, 3, 4, 5 and 6

The fuse block on most models covered by this guide is located under the instrument panel to the left of the steering column. The fuse block should be visible from underneath the steering column, near the pedal bracket. If the panel is not visible, check for a removable compartment door or trim panel which may be used on later models to hide the block.

Each fuse block uses miniature fuses (normally plug-in blade terminal-type for these vehicles) which are designed for increased circuit protection and greater reliability. The compact plug-in or blade terminal design allows for fingertip removal and replacement.



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Fig. Fig. 1: View of an early model fuse block - notice that most terminals are labelled



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Fig. Fig. 2: Common early model fuse block and components

Although most fuses are interchangeable in size, the amperage values are not. Should you install a fuse with too high a value, damaging current could be allowed to destroy the component you were attempting to protect by using a fuse in the first place. The plug-in type fuses have a bold number molded on them and are color coded for easy identification. Be sure to only replace a fuse with the proper amperage rated substitute.

A blown fuse can easily be checked by visual inspection or by continuity checking.



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Fig. Fig. 3: Common late model fuse block



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Fig. Fig. 4: Example of a late model removable compartment door housing the fuse block



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Fig. Fig. 5: Remove the compartment door/trim panel for access to the fuse block



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Fig. Fig. 6: Common fuse block location - 1992 shown

FUSE REPLACEMENT



See Figure 7

  1. Pull the fuse from the fuse block.
  2.  
  3. Inspect the fuse element (through the clear plastic body) to the blade terminals for defects.
  4.  

When replacing the fuse, DO NOT use one with a higher amperage rating.

  1. Once repairs are completed, install a replacement fuse the same amperage rating.
  2.  



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Fig. Fig. 7: Visual examination will reveal a blown fuse, but it should not be replaced until repairs are made

 
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