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Discussion Starter #1
Hey Folks,
My remote keyless entry just stopped working. I have the header out and was doing a sunroof water test (I heard a weak buzzing sound for a while while in the back seat) Both key fobs are OK. I tried the 3 times unlock with key and still nothing.

I'm wondering if this little box with FCC on it is the antenna? If yes, how do I check to see if it's still working? Any ideas appreciated. (I did not find water or anything weird inside of it, just circuit board, etc.)

Thanks!
92318
 

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That's essentially correct. It is the keyless entry receiver, which transmits signals received from the keyless entry handsets to the BCU (Body Control Unit).

It's very uncommon for them to fail, I think, but an owner on another forum recently replaced the one in his truck trying to solve the same kind of problem you are reporting. Worked like a charm, and luckily they are not expensive (e.g. used, on eBay -- ~$20-$25).
 

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Discussion Starter #3
Thanks for the reply!
UPDATE: I missed the #21 fuse..... it was blown ;-) I think it may have blown during a water test....... Radio & clock were also dead. Everything's working again. Still working on my 2nd try at sealing those damn sun roofs! 3rd time's a charm right?

Thanks again.
 

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It's very uncommon for them to fail, I think,......
Actually it's a quite common failure and in most cases it starts acting intermittently with both fobs then a replacement is needed
 

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For years I have wanted to extend the the antenna range so the remote would work when not right next to truck. Granted this is a D1 with a fresh fob battery, and I still have to be right next to the window to get the doors to lock/unlock.
 

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The receivers used to get ''tired" in time, invest in a bran' new one and double the black wire with a gorund next to the unit and tighten the pins in the connector, this should improve the range.
 

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The receivers used to get ''tired" in time, invest in a bran' new one and double the black wire with a gorund next to the unit and tighten the pins in the connector, this should improve the range.
The owner in another forum whose experience I mentioned said that he tried to buy a brand new receiver but found they are no longer available new from any supplier he checked with.
 

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Just google out YWY000090 , i've bought the 433Mhz version(YWY000080) about 4 months ago and the market was full
 

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Thanks to this post I found one as a spare in a junkyard the other day and am keeping it handy for future. How would a solid state component like this "wear out"? Does not seem possible. Works. Or Doesn't.
 

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Thanks to this post I found one as a spare in a junkyard the other day and am keeping it handy for future. How would a solid state component like this "wear out"? Does not seem possible. Works. Or Doesn't.
It's more complicated than that, and the receiver is not in a sealed and constant environment, its exposed to temperature changes, moisture, electromagnetic fields, interference, etc... it's explained here how electronics can fail Topic: Electronic/Electrical Reliability and receivers in most cases are becoming intermittent then fail for good also they will misbehave more often in extreme hot or cold moments
 
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