How do you test door lock relay fuses?

Not sure quite what youre asking. Do you want to check the fuse? Is that what youre asking? How do I check a fuse. Normally you can see the wire through the middle to give a quick indication. This wont always mean the fuse is ok. The best way is to use a multimeter and measure the resistance of the fuse. It should be really low, ideally 0 ohms.