Question about 2003 GMC Sierra 1500

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Remote starter does not work but will unlock and lock doors.

Remote starter does not work but will unlock and lock the doors. the remote also works for the trunk. the head lights flash after pressing the remote start button but does not start the car. thanks for your help My remote starter does not work, i disconct batt re connect now the locks dont work either, after doing this the truck tries to start three times but fails . What could this be and how do i fix it?Its a 2003 sierra 4.8

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Depending on your alarm which it sounds like a viper model maybe? on my 02 you have to incorporate a factory alarm bypass module in order to be able to start the truck, they run about 100.00 bucks and have to be profssionally installed. The truck wont start because the computer isnt recieving the proper starting sequence due to the factory alarm

Posted on Jul 02, 2009

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emissionwiz
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SOURCE: remote starter does not work but will unlock and lock doors.

this function is preformed through the Body control module, this can be tested for faults by the dealer only.

Posted on Mar 23, 2009

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I have a 2003 sierra and my remote starter would not work, it would lock and unlock only, checked out this site found the solution, tried it and in two seconds i solved the problem, Just press the lock button and the start button and viola it works again, thanks for all your help , GGGreat site glad i found it John

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