Please follow these instructions:

Check your login details. Your login username is your email address used for registration.

It might be a problem caused by Cec system maintenance - Please wait 30 mins and try again

Ensure that cookies from www.myobdii.com are accepted in your browser (Internet Explorer or others).

If nothing works please submit a ticket,our customer service will help you solve it out.

TIP: If you're not sure if the problem is with us or you, please test logging in with a different computer to try logging in, or try different browsers.

If you made a mistake when you registered, and you can't access your account. And you've never made any orders... it might be quickest to just use the registration to sign up again for a new account.

If you have forgotten your password, please go here to get a new password.

http://www.myobdii.com/index.php?main_page=password_forgotten