Help with my anti-theft - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 05-29-2010
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Help with my anti-theft

Okay, i really need help now its screwing up at the worst times. I have a 99 ranger 3.0l and my anti theft keeps screwing up, and it thinks im stealing my own truck! This seems to only happen when its super sunny out for some reason. The theft light will just flash and it wont turn over, i have no special anti-theft system, its the factory one. I don't get it, ill watch it flash and not even start, then itll flash a code like 1 flash, then 4 repeated. Does anyone know how to fix this or how to disconnect it, please guys
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Old 05-29-2010
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sounds like the sensor is not reading your chipped key

if you carry alot of keys on your ring
you may have damaged your ignition switch through too much weight on your key ring
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Old 05-30-2010
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hey thanks for posting, i barely got anything on me keys lol, but why would it seem like the heat affects it? is there anyway to get around it or do i have to go to the dealer to get them to do it, that will cost a ton
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Old 05-30-2010
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drive by the dealer and see if your key chip scans okay
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Old 05-30-2010
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doesnt that cost money tho?
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Old 06-03-2010
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not sure how heat would affect it however I worked on a chevy van with anti theft issues I found an audio and alarm shop that tried to bypass it for me (no charge science they weren't able to get any results) however it had a major component out had to let dealer do a final diagnostic it took them two tries with parts that cost over $300 It was worth it to me My total was only around $450 and if i had done it myself I would have had to eat the other $300 part I would recommend talking to places that install remote start good luck
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Old 06-06-2010
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if you have a spare key try using it for a few days to see if you get the same results
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