# Homimg Y axis does not work **URL:** \ **Category:** Uncategorized\ **Created:** [July 25, 2016, 12:08pm UTC](https://community.inventables.com/t/homimg-y-axis-does-not-work/26276 "2016-07-25T12:08:48Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![PatrickDunne](https://avatars.discourse-cdn.com/v4/letter/p/a3d4f5/32.png) [@PatrickDunne](https://community.inventables.com/u/PatrickDunne)\ **Post date:** [July 25, 2016, 12:08pm UTC](https://community.inventables.com/t/homimg-y-axis-does-not-work/26276/1 "2016-07-25T12:08:48Z")
when homing the X and Z limit switches work but not the Y, I have checked the switch and it’s working okay, I have also run a short length of wire from the switch to the pin on the G shield (pin 3) and that did not work all the wiring is correct I just don’t know what to try next, any idea’s ---
**Author:** ![LarryM](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/larrym/32/51450_2.png) [@LarryM](https://community.inventables.com/u/LarryM)\ **Post date:** [July 25, 2016, 5:26pm UTC](https://community.inventables.com/t/homimg-y-axis-does-not-work/26276/2 "2016-07-25T17:26:56Z")
@PatrickDunne Look in here for the article on using grbl to debug your homing switches. > [@LarryM - just a place to store some of my links for reference](https://community.inventables.com/t/larrym-just-a-place-to-store-some-of-my-links-for-reference/25628): > > This post is just a convenient place to store links to some of my X-carve information. ---
**Author:** ![PatrickDunne](https://avatars.discourse-cdn.com/v4/letter/p/a3d4f5/32.png) [@PatrickDunne](https://community.inventables.com/u/PatrickDunne)\ **Post date:** [July 26, 2016, 8:56am UTC](https://community.inventables.com/t/homimg-y-axis-does-not-work/26276/3 "2016-07-26T08:56:54Z")
Thank you Larry, I have read that, and followed your instructions, the return message I get for the Z and X are that they are both working okay, but the Y return message is 000 open or closed it is still 000, I have tried a new switch and run a cable from the switch to the G shield pin3 in case the wiring was faulty, but nothing works, I have ordered the Xcontroller which should be here early next week so I might wait until I get that before I make any more changes, as the grounds on the Xcontroller are seperate which might be better than having them all bunched up with a pigtail going to the terminal ---
**Author:** ![PatrickDunne](https://avatars.discourse-cdn.com/v4/letter/p/a3d4f5/32.png) [@PatrickDunne](https://community.inventables.com/u/PatrickDunne)\ **Post date:** [July 26, 2016, 12:16pm UTC](https://community.inventables.com/t/homimg-y-axis-does-not-work/26276/5 "2016-07-26T12:16:31Z")
Thank’s Phill. I tried the jumper from pin to ground and did not get a 1 also reseated the Gshield and still nothing ---
**Author:** ![LarryM](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/larrym/32/51450_2.png) [@LarryM](https://community.inventables.com/u/LarryM)\ **Post date:** [July 26, 2016, 4:32pm UTC](https://community.inventables.com/t/homimg-y-axis-does-not-work/26276/6 "2016-07-26T16:32:12Z")
Most likely a bad Arduino port. You could try to re-flash the grbl firmware to see if it’s a software issue. ---
**Author:** ![PatrickDunne](https://avatars.discourse-cdn.com/v4/letter/p/a3d4f5/32.png) [@PatrickDunne](https://community.inventables.com/u/PatrickDunne)\ **Post date:** [July 27, 2016, 9:42am UTC](https://community.inventables.com/t/homimg-y-axis-does-not-work/26276/7 "2016-07-27T09:42:03Z")
I tried re-flashing the grbl but that made no difference either, the Y axis will not stop, so do you think it is the Arduino that is the problem, as I am getting the Xcontroller next week I think I should wait and see if that works first, and if it does I can be sure that my wiring is ok, I am pretty sure it is ? ---
**Author:** ![LarryM](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/larrym/32/51450_2.png) [@LarryM](https://community.inventables.com/u/LarryM)\ **Post date:** [July 27, 2016, 12:00pm UTC](https://community.inventables.com/t/homimg-y-axis-does-not-work/26276/8 "2016-07-27T12:00:06Z")
> [@PatrickDunne](#): > > do you think it is the Arduino that is the problem Yes. The grounding issue (pigtail vs X-controller) should not make any difference other than being just a little bit more convenient on the X-controller. Since you have already ordered the X-controller then you might as well wait if you are not in a hurry. If you don’t have plans for the Arduino/gShield and the X-controller works, then no need to worry about the Arduino. ---
**Author:** ![PatrickDunne](https://avatars.discourse-cdn.com/v4/letter/p/a3d4f5/32.png) [@PatrickDunne](https://community.inventables.com/u/PatrickDunne)\ **Post date:** [July 28, 2016, 6:54am UTC](https://community.inventables.com/t/homimg-y-axis-does-not-work/26276/9 "2016-07-28T06:54:55Z")
Thank’s Larry I am not in any hurry so will wait for the Xcontroller to arrive, I have no plans for the Arduino/gShield, I suppose the Arduino is non repairable anyway. I don’t understand why it packed up, and I would like to know just in case it happens again, did I do something wrong, it might be the pins, I should just bin it ---
**Author:** ![LarryM](https://yyz1.discourse-cdn.com/flex009/user_avatar/community.inventables.com/larrym/32/51450_2.png) [@LarryM](https://community.inventables.com/u/LarryM)\ **Post date:** [July 28, 2016, 12:37pm UTC](https://community.inventables.com/t/homimg-y-axis-does-not-work/26276/10 "2016-07-28T12:37:39Z")
Not likely that you did anything to cause the failure. If the Arduino has the plug in chip you may be able to fix it. I would keep the Arduino/gShield just as a back up. ---
**Author:** ![PatrickDunne](https://avatars.discourse-cdn.com/v4/letter/p/a3d4f5/32.png) [@PatrickDunne](https://community.inventables.com/u/PatrickDunne)\ **Post date:** [July 28, 2016, 2:34pm UTC](https://community.inventables.com/t/homimg-y-axis-does-not-work/26276/11 "2016-07-28T14:34:54Z")
Okay, thank’s I will keep it as a back up