rear window defog not working

2002 CHEVROLET ASTRO
159,000 MILES • V8 • 2WD • AUTOMATIC
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JESSPRIDDYSR
  • MEMBER
  • 4 POSTS
rear window defog not working replaced relay no help are there any other fuses
Dec 27, 2010 at 1:36 AM
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KHLOW2008
  • ✓ASE Certified Mechanic
  • 41,814 POSTS
  • ASE Certified Mechanic
Replacing parts without understanding what is fault is a waste of time and money.

For electrical faults, you need a test lamp or DVOM to test for power supply.

The schematic shows all the omponents related to the defoger. Get a test lamp to check for power supply to RR Defoger fuse when turned on.
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Dec 31, 2010 at 5:44 PM
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