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Old 09-02-2010, 10:26 AM   #8
MT-2500
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Re: 01 tahoe wont start maybe passlock

Quote:
Originally Posted by chevy05 View Post
I just checked I have power at that pin which on my scanner cables it has a light to say it has power. When I have ran into that on my 05 silverado not reading the power light did not work and I actually blew the fuse which is the same as my power point fuse. When I turn the key on the security light does not come on anymore. But I am not sure if the fuel pump went out or if the computer is bad or something else even not sure how to narrw it down to pin point the problem.
Security light should come on key on and then go out if working right.

Check for spark to plugs engine cranking.

If fuel pump does not power up key on 2 second prime up.

Jumper fuel pump and see if it runs and has proper pressure.

Also check all fuses and power feeds.
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