# T-1 to T-2 swap out **URL:** \ **Category:** GEM Forum\ **Created:** [March 22, 2014, 5:14pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137 "2014-03-22T17:14:34Z")\ **Posts on this page:** 20\ **Page:** 1
**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:** [March 22, 2014, 5:14pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/1 "2014-03-22T17:14:34Z")
I wanted to share what I have learned about what it takes to switch out a older T-1 controller to a Newer T-2 controller. Some of the advantages of a T-2 are higher amperage and the ability to deal with heat that higher HP motors can put on the I don’t think the T-1 has any issues with the stock 3.5 and 5 Hp motors. But if you upgrade to the 7.5 or Higher Hp motors your pushing your luck with a T-1. I installed a 7.5 Ride 4 fun motor and had the controller re programed and with in a week or so I was getting code “-41 Overheating” the T-1 was having issues handling the extra amps the Larger motor was placing on it. Rebuilding the controller can fix this problem but the T-1s don’t have as much copper in the heat sinks as the T-2s do and rebuilding a T-1 dosen’t add copper for more heat dissipation. So if you can get your hands on a T-2 and rebuild that then your ahead of the game. What your going to need to swap out a T-1 to a T-2 is a 10 pin convert cable and a pin 21 to pin 2 jumper. Here is the 10 pin jumper adaptor that plugs into your Harness and then plugs into the T-2 controller. ---
**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:** [March 22, 2014, 5:16pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/2 "2014-03-22T17:16:33Z")
This is the Jumper cable that plugs into the 26 pin main connector in the controller ---
**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:** [March 22, 2014, 5:18pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/3 "2014-03-22T17:18:35Z")
The Jumper pushes into the #21 position of the main controller plug Edit 7/2/16 Rodney Changed #23 position to #21 (motor over temp monitor circuit) ---
**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:** [March 22, 2014, 5:21pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/4 "2014-03-22T17:21:29Z")
Then the jumper plugs into the #2 position wire. This wire is Grey and White. And puts power to the #21 pin. Edit 7/2/16 Rodney Changed #23 pin to 21 above With out this jumper you will get error code -90 ---
**Author:** ![GEMmechanic](https://avatars.discourse-cdn.com/v4/letter/g/ecccb3/32.png) [@GEMmechanic](https://community.electricforum.com/u/GEMmechanic)\ **Post date:** [March 25, 2014, 2:29pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/5 "2014-03-25T14:29:39Z")
Could we have sources and part numbers for these? ---
**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:** [March 25, 2014, 2:39pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/6 "2014-03-25T14:39:32Z")
Sorry I don’t have part numbers for the Jumper wire but the part number for the 10 adapter is in the photo above. Edit: Rodney 7/2/16 Adaptor Part # 0106-00678 includes the jumper wire And I have some updated info. Both T-1 and T-2 are 350 Amp controllers. The T-2 has the ability to handle more heat because the motherboard has more copper. I was told that the “Thermister” the part that dissipates heat is a common source of issues in controller -41 error code ---
**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:** [January 9, 2015, 10:44pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/7 "2015-01-09T22:44:46Z")
T1 and T2 are both only 350 amp controllers. T2 has more control features. ---
**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:** [March 23, 2015, 9:33am UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/8 "2015-03-23T09:33:05Z")
Grant Where did you buy the adaptor.? Rodney ---
**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:** [March 23, 2015, 10:16am UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/9 "2015-03-23T10:16:19Z")
I happened to have one laying around on a car that are used for parts. ---
**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:** [March 23, 2015, 10:28am UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/10 "2015-03-23T10:28:31Z")
Don’t forget you will also need the jumpers. They are the Femail Pins that snap into the cars main plug ---
**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:** [March 23, 2015, 1:58pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/11 "2015-03-23T13:58:03Z")
> [@Gwest;24039](#): > > Don’t forget you will also need the jumpers. They are the Femail Pins that snap into the cars main plug The parts you need are on this page > **[Seize your potential | LocaliQ](https://liqpages.com/)** > > LocaliQ is a marketing platform that helps businesses find, convert, and keep customers with a suite of marketing products. you will need 2 of these 0106-00827 ASSY,WIRE - SPLIT HEAT SINK JUMPER and One of these 0106-00678 ASSY, WIRE HARNESS - SPLIT HEATSINK JUMPER ---
**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:** [March 23, 2015, 6:17pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/12 "2015-03-23T18:17:26Z")
Thanks Grant ---
**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:** [May 15, 2019, 10:00pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/13 "2019-05-15T22:00:24Z")
![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/1/17dd070777579160d55338ea2e99aca54c34d3a0.jpeg) Let me know if this drawing makes any sense. ---
**Author:** ![bundcur](https://avatars.discourse-cdn.com/v4/letter/b/85f322/32.png) [@bundcur](https://community.electricforum.com/u/bundcur)\ **Post date:** [May 15, 2019, 10:29pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/14 "2019-05-15T22:29:38Z")
Yes sir. Thank you for the help! ---
**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:** [May 15, 2019, 11:37pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/15 "2019-05-15T23:37:38Z")
Hey David do you happen to know the name of the Pins that slide into and lock in to the 24 pin main connector ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [May 15, 2019, 11:41pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/16 "2019-05-15T23:41:50Z")
ampseal 770854-1 > [@WTB 12 pin cable to swap out T1 to T2 controller](https://community.electricforum.com/t/wtb-12-pin-cable-to-swap-out-t1-to-t2-controller/6235): > > Looking for 8 to 12 pin harness to change out a T1 controller for a T2. Anyone have one or know where to buy? 0106-00678 ASSY, WIRE HARNESS - SPLIT HEATSINK JUMP 1 (Part Number 2411919 - ASSY,WIRE HARN-SPLIT HTSINK) Thanks, Martin ---
**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:** [May 15, 2019, 11:43pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/17 "2019-05-15T23:43:53Z")
That’s the one! ( ampseal 770854-1) Thanks ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [May 16, 2019, 12:34pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/18 "2019-05-16T12:34:26Z")
![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/8/8f30578202bdc8a5215fa84c4e7b1a27b4e98c0e.png) ![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/3/3501a87823b98ce5c9579d5ea61fccd1dca78c45.jpeg) ---
**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:** [May 16, 2019, 4:46pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/19 "2019-05-16T16:46:44Z")
Dave did you just make a T-1 to T-2 swap out kit? ---
**Author:** ![Inwo](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/inwo/32/1067_2.png) [@Inwo](https://community.electricforum.com/u/Inwo)\ **Post date:** [May 16, 2019, 5:41pm UTC](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137/20 "2019-05-16T17:41:56Z")
Did previous. I don’t know if I have any left. [Next page](https://community.electricforum.com/t/t-1-to-t-2-swap-out/4137.md?page=2)