1999 gmc yukon wont start. Security light not on.


Asked by Oct 15, 2016 at 06:54 PM about the 1999 GMC Yukon SLT 4WD

Question type: Maintenance & Repair

My truck wouldnt start. Noticed the security
light and made a bypass using a toggle
switch. Worked well for a few weeks. Now it
wont start, it cranks but i notices the
security light doesnt turn on at all and the
gauges like the battery doesnt move and my
check engine light doesnt turn on as well. I
installed a new computer and still no start.

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