Remote key problem

2003 TOYOTA CROWN
130,000 MILES • 3.0L • V6 • 2WD • AUTOMATIC
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MOS DIZ
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My car's remote key does not unlock/lock doors and open trunk. It doesn't even make a clicking sound to show that it's trying to open them.
What could be the problem?

The chip inside the key came with the car so I am sure it's the one for the car. I have already replaced the battery so the issue is not a low battery. The red light on the key blinks when I press the above buttons which probably means the key is sending out a signal.
Somebody please help.
Mar 20, 2019 at 1:23 AM
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STRAILER
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Hello,

There are several fuses that run the system. here is the wiring diagrams so you can see the fuses that need to be checked. Also, here is a guide to help with the fuse locations as well, below:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.
Mar 21, 2019 at 11:46 AM