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post #1 of 11 (permalink) Old 02-13-2013, 12:54 AM Thread Starter
1ta
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Security???

my 93 trans am wont even turn over now and the security light is flashing??? wat to do and help would be appreciated.

93 trans am lt1 6 spd 3.73 posi
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post #2 of 11 (permalink) Old 02-13-2013, 04:11 AM
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Security???

That's the VATS messing up. Read shoebox's VATS page for more detailed information.

If you need more direction after reading that, feel free to ask.

1995 Firehawk #528 resto-mod underway

Planned 383 rebuild: 195cc competition LT4 AFR heads, custom cam grind (still debating specs), 6" or 5.85" rods, forged internals

Upgraded T56: Viper mainshaft and 2nd gear, steel 3/4 shift fork, Billet keys 1-4, bronze shifter cup, internals Cryo'd and REM'd
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post #3 of 11 (permalink) Old 02-17-2013, 06:29 PM Thread Starter
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so i just did a resistance check on my key resistor and its 0... im going to dealer tomoro to see about getting a new one for the car

93 trans am lt1 6 spd 3.73 posi
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post #4 of 11 (permalink) Old 02-17-2013, 11:50 PM
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Security???

That would do it. You lucked out and got the easy fix.


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1995 Firehawk #528 resto-mod underway

Planned 383 rebuild: 195cc competition LT4 AFR heads, custom cam grind (still debating specs), 6" or 5.85" rods, forged internals

Upgraded T56: Viper mainshaft and 2nd gear, steel 3/4 shift fork, Billet keys 1-4, bronze shifter cup, internals Cryo'd and REM'd
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post #5 of 11 (permalink) Old 02-18-2013, 01:18 PM Thread Starter
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Wrong still ain't doing nothing
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post #6 of 11 (permalink) Old 02-18-2013, 06:32 PM
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If resistor trick doesn't work, there are 2 other methods. 1st would be to program out vats from your ecm. However, your 93 has a removeable chip that complicates programing.

2nd method would be to buy a bypass module that would send the 30 hertz fuel enable signal to the ecm. Your 93 uses a 30 hertz signal while 94 and newer use a 50 hertz signal.

You can buy a 30 hertz bypass module for $35 + shipping, from the following site. Baker Electronix - GM VATS Bypass

You will also have to manually bypass the tdr (theft deterrent relay) that is what is keeping the starter from working. It is up under the dash near the passenger airbag bracket. On the 93, for some reason, it's called the starter enable relay.

Once you find the tdr, it will have 2 large yellow wires, 1 large dark green wire, and 1 smaller yellow/black wire. If you cut the yellow/black wire and splice in another piece of wire going to a good ground, if tdr is good then starter will work.

www.shbox.com has the 93 starting and charging wiring diagram you will need.

Last edited by cocobolo95; 02-18-2013 at 06:42 PM.
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post #7 of 11 (permalink) Old 02-18-2013, 06:58 PM Thread Starter
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Yeah we just jump started it and it cranked but I had to keep my foot on the peddle else it would shut off
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post #8 of 11 (permalink) Old 02-18-2013, 07:12 PM
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In that case it's not a vats problem. It would not have cranked, nor would it run if vats was acting up.
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post #9 of 11 (permalink) Old 02-18-2013, 09:50 PM Thread Starter
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Oooops not jump start lol push start ya no pull it behind something and dump the clutch in gear
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post #10 of 11 (permalink) Old 02-19-2013, 07:58 AM
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The starter enable relay aka tdr could be acting up. As stated before, vats also cuts of fuel injectors so engine would not run for more than a second or two.
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post #11 of 11 (permalink) Old 02-19-2013, 01:42 PM Thread Starter
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SHE lives !!!!!! Thank god for resistors ... It was my switch I just bypassed it
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