There are about 4 connectors on it. I suppose one of them might be loose, though they are usually on there very good. Maybe someone was under there and something happened...

I used a eBay rapair guy in Canada to repair mine and he was a crook and liar. Took my money and didn't fix it. And at that time anyway eBay had an exemption to their guarantee regarding repairs. Even though the listing said "Guaranteed" all over it. You had to click through to 3 different pages to finally find where they said repairs are not covered by the warranty. So I lost $250 to that thief. Not saying it is the same guy but the guy you want is a guy in California. I probably have his name somewhere. However, once he fixes it you can only get new keys from him and not the dealer. He "does something" to it...

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra