Error code 51031 on mario kart Wii - Nintendo Mario Kart (Wii) for Wii

SOURCE: second remote will not recognize

Had the same problem last night.... Turn off the wii system by unplugging , wait a couple of seconds and plug back in. Next, the front of the wii has a pocket that opens, there is a red button. Put the disc to mario kart in the wii once you see the federal regs push and hold the red button on the wii for 15 seconds then once this 15 seconds is up with the controllers battery case open push the red button to the original controller. All of lights will flash and then stop. Push the red button on the wii console again just once. Then push the red button on the second remote wait till all lights stop flashing push the red button on the console and now they should be married to the wii system. Hope this helps----do you know how to get the volume? We don't have any volume

SOURCE: Second wii remote will not recognize the Mario Kart.

take the battery cover off the wii controller and press the red button. then open the cover at the front of the wii and press the red button. do this when you are at the wii menu. this registeres the remote

SOURCE: another problem with second wii remote for mario cart

press the red button at the back of the remote and then open the cover at the front of the wii and press the red button

SOURCE: mario kart wii is not working on my wii. i keep

Try a Wii system update

SOURCE: Wii Mario Kart won't work

there may be a scratch on your disk. have you tried wiki/yahoo answers