# Controller questions **URL:** \ **Category:** GEM Forum\ **Created:** [June 2, 2019, 10:22pm UTC](https://community.electricforum.com/t/controller-questions/16203 "2019-06-02T22:22:18Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Bolanger](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/bolanger/32/4184_2.png) [@Bolanger](https://community.electricforum.com/u/Bolanger)\ **Post date:** [June 2, 2019, 10:22pm UTC](https://community.electricforum.com/t/controller-questions/16203/1 "2019-06-02T22:22:18Z")
Need to have my controller tested…,any suggestions on where to send it. Also…is a GE…tested 10/30/2007…customer global…catalogue number ends in t3. I guess this means it’s a t3 controller…but not 100% sure. Also…do you have to replace a t3 with another t3. Interested in only stock settings. Thanks for taking the time to answer ---
**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\ **Post date:** [June 3, 2019, 1:54am UTC](https://community.electricforum.com/t/controller-questions/16203/2 "2019-06-03T01:54:57Z")
Send it to FSIP. Unfortunately you have to replace it with another T3. This was a 2005 only. The T4 corrected the short comings, I tried to substitute a T4 twice but it was a no go.If your a real good electrician you may be able to figure out the differences and make a T4 work. It would be worth it Is it dead? ---
**Author:** ![grantwest](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/grantwest/32/15_2.png) [@grantwest](https://community.electricforum.com/u/grantwest)\ **Post date:** [June 3, 2019, 11:45am UTC](https://community.electricforum.com/t/controller-questions/16203/3 "2019-06-03T11:45:39Z")
Yes you have to re wire or Jumper a few wires to make a T-4 Controller work in a T-3 car. It’s not rocket science just need to know what wires to jump or add on.