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Old 02-02-2005, 02:17 AM   #1
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Default Passlock bypass

I am going to get a remote starter for my girlfriends '99 grand prix GT. I would like to know if I need the PASSLOCK BYPASS DOes anyone know where I can find this information out at?
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Old 02-02-2005, 02:43 AM   #2
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If I am not mistaken any GM 99 and newer does. You can go to crutchfield and check it out for your car. They should tell you everything you need to do an install and if you need it or not.

www.crutchfield.com
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Old 02-02-2005, 08:43 AM   #3
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I'm showing that 99+ has a transponder type of anti-theft system. To verify, "PK3" should appear on the key just below the rubber head. You will need a bypass module like this:

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Old 02-02-2005, 12:27 PM   #4
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with the remote starter on our 00 blazer we just used a resistor to bypass the passkey. the module is a waste of money
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Old 02-02-2005, 12:31 PM   #5
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Thanks for your responses everyone.

Quote:
Originally Posted by 1993 SLE
with the remote starter on our 00 blazer we just used a resistor to bypass the passkey. the module is a waste of money
How do you know which to use?
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Old 02-02-2005, 01:03 PM   #6
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Quote:
Originally Posted by 1993 SLE
with the remote starter on our 00 blazer we just used a resistor to bypass the passkey. the module is a waste of money
'00 Blazers do not have the same antitheft system as the 99 Grand Prix so you cant just use a resistor. Also, the modules allow the theft system to remain fully functional where as you have disabled the entire system with a resistor. For some people, the module is not a waste of money, it'* a requirement.
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Old 02-02-2005, 01:09 PM   #7
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ah i got ya.......i forgot that the systema are different through out GM. and yes the module is the only the passkey will function sometimes
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Old 02-02-2005, 01:11 PM   #8
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Quote:
Originally Posted by 1993 SLE
ah i got ya.......i forgot that the systema are different through out GM. and yes the module is the only the passkey will function sometimes
Thanks guys. I looked it up and I believe I need the 555L. Can anyone verify that?
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Old 02-02-2005, 01:44 PM   #9
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Check the key for the "PK3" designation. If it has it then it is the one pictured above. If not then it is the 555L. I'm getting incomplete or conflicting information from two sources:

http://www.designtech-intl.com/Conte...l?modelID=1193
http://audio-n-more.com/dei/Directed...art%200704.pdf
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