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The only way to disconnect the anti theft of any maxima from year 89-94 would be to disconnect the relay that is marked as anti theft it is in the relay box to the right or the left fender. Also, after doing this remember to disconnect the battery for about half a day to a day. afterwards, connect the battery prongs back in place and remember to replace the relay that you disconnected this will eliminate the computer's memory. If this doesn't work than the next solution would be to take it to the agency and have them disconnect the whole anti-theft system or having them find the correct code to access the doors without any hassle. answer#2. I have a 1993 Nissan Maxima. my anti-theft went off and would not let my car start. I tried pulling the relay and fuses still would not work. Nissan wanted $150.00 to remove the anti-theft unit which any one can do them self. just pull off the bottom half of the driver side dash . there is a white box marked anti-theft with another box,disconnect the two plugs that go into them and remove the two screws that hold the bracket into place and your factory anti-theft is no longer a problem.

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โˆ™ 2015-07-15 21:16:05
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Q: How do you disconnect the anti theft system on a 1989 Nissan Maxima?
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