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After verifying your auto function, remove and reinsert key into ignition. Turn to on position, then press the lock button on the key, then turn the key back to off. Using the radio module from your original switch will solve this problem (assuming, of course, that your original switch was still functional with the remote lock key fob).
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.