# Gem cart 6 seat 2014 code 21 16 77 **URL:** \ **Category:** GEM Forum\ **Tags:** gem\ **Created:** [June 27, 2021, 2:46pm UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762 "2021-06-27T14:46:01Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![GD\_Debre](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gd_debre/32/15420_2.png) [@GD\_Debre](https://community.electricforum.com/u/GD_Debre)\ **Post date:** [June 27, 2021, 2:46pm UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/1 "2021-06-27T14:46:01Z")
Hey I was driving my car yesterday fast like 31 mph and had a code 21 in the middle of the road that made my car stop and it start again all of a sudden after I had code 16 had to push the car sum way and finally I got to get back home when I got home I had code 77 does anyone know how to find the problem and fix it thx ---
**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:** [June 27, 2021, 3:08pm UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/2 "2021-06-27T15:08:34Z")
What batteries do you have? ---
**Author:** ![GD\_Debre](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gd_debre/32/15420_2.png) [@GD\_Debre](https://community.electricforum.com/u/GD_Debre)\ **Post date:** [June 27, 2021, 3:21pm UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/3 "2021-06-27T15:21:01Z")
Have 9 8 volts new gel ---
**Author:** ![AssyRequired](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/assyrequired/32/7621_2.png) [@AssyRequired](https://community.electricforum.com/u/AssyRequired)\ **Post date:** [June 27, 2021, 4:55pm UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/4 "2021-06-27T16:55:10Z")
Wow- 3 different codes in one trip? That makes for quite a day!! Code 21 - accelerator fault safety lock out inspect accelerator resistance and wiring Code 16 - voltage high electrical fault verify voltage \>86vdc, if higher, run lights to reduce Code 77 - vehicle over speed error inspect motor controller Weird… All not really related. I say there is something going on inside your controller. Check the main plug first. Look for dirt/corrosion/water where it shouldn’t be. Where are you located? Has it rained lately? Wave you washed your car? If it continues, remove the motor controller and take it apart. Look for water ingress, corrosion, maybe bits of something bumping around in there. > [@COMPLETE list of GEM error CODES](https://community.electricforum.com/t/complete-list-of-gem-error-codes/1492): > > Some of the following codes do not appear in the factory manual. Not all of these codes will necessarily apply to all model years. Corrective actions are listed following each code. Thanks to several other members and Ride for Fun who have provided new codes for this list. Also see my post listing the Zivan NG1 charger errors. [http://www.electricforum.com/cars/neighborhood-electric-vehicles-hev/2507-zivan-ng1-charger-error-codes.html](http://www.electricforum.com/cars/neighborhood-electric-vehicles-hev/2507-zivan-ng1-charger-error-codes.html) Complete list of GEM error codes: Error Code Descri… ---
**Author:** ![LithiumGods](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/lithiumgods/32/672_2.png) [@LithiumGods](https://community.electricforum.com/u/LithiumGods)\ **Post date:** [June 27, 2021, 6:30pm UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/5 "2021-06-27T18:30:06Z")
That is sign of a controller going bad. have had 2 other 2014 do it. Needs to be rebuilt ---
**Author:** ![GD\_Debre](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gd_debre/32/15420_2.png) [@GD\_Debre](https://community.electricforum.com/u/GD_Debre)\ **Post date:** [June 27, 2021, 6:47pm UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/6 "2021-06-27T18:47:33Z")
Car is still running btw not sure what I should check maybe start with some voltage math on the controller ---
**Author:** ![LithiumGods](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/lithiumgods/32/672_2.png) [@LithiumGods](https://community.electricforum.com/u/LithiumGods)\ **Post date:** [June 27, 2021, 8:17pm UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/7 "2021-06-27T20:17:04Z")
pull the 23 pin connector and clean it could help. If it like the one’s I dealt with, the intermediate problem will get worse. After the 3rd time getting stuck I had them rebuilt. ---
**Author:** ![GD\_Debre](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gd_debre/32/15420_2.png) [@GD\_Debre](https://community.electricforum.com/u/GD_Debre)\ **Post date:** [June 28, 2021, 3:50am UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/9 "2021-06-28T03:50:54Z")
![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/7/75773220d6500495ce84ca6cb880f857ee4d42eb.jpeg) ![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/f/ff525efa8c64cd61c759b634cb7d4fd5187cec5d.jpeg) ---
**Author:** ![GD\_Debre](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gd_debre/32/15420_2.png) [@GD\_Debre](https://community.electricforum.com/u/GD_Debre)\ **Post date:** [June 28, 2021, 3:52am UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/10 "2021-06-28T03:52:15Z")
Looks clean getting 78 volts on control ---
**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:** [June 28, 2021, 10:49am UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/11 "2021-06-28T10:49:46Z")
![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/6/617cd87b19c4887c53da1948d8f1f60b05d22a7b.png) [https://www.shop.fsip.biz/Image/GetDocument/en/291](https://www.shop.fsip.biz/Image/GetDocument/en/291) ---
**Author:** ![LithiumGods](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/lithiumgods/32/672_2.png) [@LithiumGods](https://community.electricforum.com/u/LithiumGods)\ **Post date:** [June 28, 2021, 11:07am UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/12 "2021-06-28T11:07:23Z")
Looks clean, doubt it is your problem. ---
**Author:** ![AssyRequired](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/assyrequired/32/7621_2.png) [@AssyRequired](https://community.electricforum.com/u/AssyRequired)\ **Post date:** [June 28, 2021, 11:30am UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/13 "2021-06-28T11:30:38Z")
> Looks clean, doubt it is your problem. Agree. Now for a peek inside. If it is anything like the problem the other day (Temp Light stuck on/Turborobo) it looked like water got in from around the main plug. It also may not be water related. Maybe something came loose and is playing pinball in there? ---
**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:** [June 28, 2021, 1:31pm UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/14 "2021-06-28T13:31:52Z")
Clean is good but needs lube as per GE to prevent issues. “When servicing existing vehicles exhibiting symptoms of intermittent mis-operation or shutdown by the GE control, GE recommends the addition of this lubricant to all 12 and 23 pin plugs, after proper cleaning of the connectors, as a preventative measure to insure fretting is not an issue before GE control replacement. Also, for long term reliable control operation, the plug terminals must be maintained per these instructions with the recommended contact cleaner and lubricant which provides a high degree of environmental and fretting protection.” ---
**Author:** ![GD\_Debre](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gd_debre/32/15420_2.png) [@GD\_Debre](https://community.electricforum.com/u/GD_Debre)\ **Post date:** [June 28, 2021, 2:45pm UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/15 "2021-06-28T14:45:44Z")
Ya maybe something came loose but what and where will I check that ---
**Author:** ![GD\_Debre](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gd_debre/32/15420_2.png) [@GD\_Debre](https://community.electricforum.com/u/GD_Debre)\ **Post date:** [June 28, 2021, 4:21pm UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/16 "2021-06-28T16:21:01Z")
Am thinking the pedal is the problem 🥸 ---
**Author:** ![GD\_Debre](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gd_debre/32/15420_2.png) [@GD\_Debre](https://community.electricforum.com/u/GD_Debre)\ **Post date:** [June 28, 2021, 8:22pm UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/17 "2021-06-28T20:22:48Z")
Code 21 - accelerator fault safety lock out inspect accelerator resistance and wiring This is the main code I get . How can i fix this anyone Lol ---
**Author:** ![LithiumGods](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/lithiumgods/32/672_2.png) [@LithiumGods](https://community.electricforum.com/u/LithiumGods)\ **Post date:** [June 29, 2021, 12:17am UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/18 "2021-06-29T00:17:46Z")
2014 pedals are optical sensors, very reliable. different from early Gems. Inwo has replacements but I have never seen one fail. ---
**Author:** ![GD\_Debre](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/gd_debre/32/15420_2.png) [@GD\_Debre](https://community.electricforum.com/u/GD_Debre)\ **Post date:** [June 29, 2021, 2:56pm UTC](https://community.electricforum.com/t/gem-cart-6-seat-2014-code-21-16-77/21762/19 "2021-06-29T14:56:27Z")
So what does accelerator fault even mean?