# GEM 2005 ES Rear Brake lights staying lit, no rear turn blinkers **URL:** \ **Category:** GEM Forum\ **Created:** [November 2, 2025, 7:10pm UTC](https://community.electricforum.com/t/gem-2005-es-rear-brake-lights-staying-lit-no-rear-turn-blinkers/29847 "2025-11-02T19:10:06Z")\ **Posts on this page:** 6\ **Page:** 2
**Author:** ![UncleGemmy](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/unclegemmy/32/17230_2.png) [@UncleGemmy](https://community.electricforum.com/u/UncleGemmy)\ **Post date:** [November 10, 2025, 5:48pm UTC](https://community.electricforum.com/t/gem-2005-es-rear-brake-lights-staying-lit-no-rear-turn-blinkers/29847/21 "2025-11-10T17:48:22Z")
Ok - one more question because I’m still a bit confused about this: Is the ChassGnd the ground wire in the 2x2 (or 2x3) molex in the front near the shock/spring? ---
**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:** [November 10, 2025, 5:55pm UTC](https://community.electricforum.com/t/gem-2005-es-rear-brake-lights-staying-lit-no-rear-turn-blinkers/29847/22 "2025-11-10T17:55:23Z")
When I refer to ChassGnd, I am pointing to anything on the frame of the car. Pick a clean spot and stick your reference probe or clamp there. If you follow the black wire it will usually peel out of the harness somewhere and terminate with a ring terminal and be screwed down to the frame somewhere. Sometimes these get loose or get pulled off and need checking. ---
**Author:** ![UncleGemmy](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/unclegemmy/32/17230_2.png) [@UncleGemmy](https://community.electricforum.com/u/UncleGemmy)\ **Post date:** [November 10, 2025, 5:57pm UTC](https://community.electricforum.com/t/gem-2005-es-rear-brake-lights-staying-lit-no-rear-turn-blinkers/29847/23 "2025-11-10T17:57:44Z")
Literally the chassis ground - got it! Thanks and will follow up once I get in there. Cheers! ---
**Author:** ![UncleGemmy](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/unclegemmy/32/17230_2.png) [@UncleGemmy](https://community.electricforum.com/u/UncleGemmy)\ **Post date:** [November 15, 2025, 5:52pm UTC](https://community.electricforum.com/t/gem-2005-es-rear-brake-lights-staying-lit-no-rear-turn-blinkers/29847/24 "2025-11-15T17:52:07Z")
Alright - got some more work done on this last night and have some follow up questions. I unplugged the back lights to see if the front blinkers worked and it did appear to help: the front blinkers worked again. Overall I’m getting really weird electric things going on. • When blinkers are activated, the rear running light on the trailer bed actually turns off for that side of the car when I brake. Lights appear normal otherwise. • In some instances, the rear trailer bed blinker would actually work as intended - blinking about 3 times - but then stopping as if they had run out of juice. > If you follow the black wire it will usually peel out of the harness somewhere and terminate with a ring terminal and be screwed down to the frame somewhere. Sometimes these get loose or get pulled off and need checking. So I tested the back molex again for the turn signals, using a chassis ground (pictured) and got a very dim blinking signal. I also followed the harness to see where the ground wire broke out and found that it appears to be connected to the battery negative as a ground. That’s… not right correct? ![IMG_5965](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/3X/0/1/01a38cd08de41f455a62dd2b141ede33d55e5669.jpeg) ![IMG_5962](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/3X/8/2/8246f8444fca44bd8e6081e7319b882d429740f8.jpeg) ![IMG_5963](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/3X/b/e/be2ad185ac3430f377a9604adb546a77c3f05af8.jpeg) Additionally, I went to the front 2x2 molex for those lights and got a very strong 12V signal, blinking when activated. That said… I also found that the 2x2 molex male and female wires didn’t color match - 2 of the wires matched and 2 of them needed to be swapped. I disconnected them for now and will try recrimping them into their matching ports soon. Thanks as always for your insights! ---
**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:** [November 15, 2025, 7:03pm UTC](https://community.electricforum.com/t/gem-2005-es-rear-brake-lights-staying-lit-no-rear-turn-blinkers/29847/25 "2025-11-15T19:03:37Z")
**Your black wire.** This is where one really needs to understand what wire you are looking at on these cars. These cars have the messiest wiring code I have ever seen. You should take the manual and colors as a suggestion. To answer your question, that wire is going to where is is supposed to go (over to B- ) Leave it there. It is part of the charger temperature sense circuit. ==== ![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/3X/6/3/63aa79a2fdb0092b63fb4cf89d989a403399f9fb.jpeg) This is not a ChassGnd! (pictured) It is the main fuse to your battery pack. Note that it has big orange cables tied straight to a couple of batteries. ==== Try again. Clamp your test light straight to the frame of the car. Scroll back up to Post 7 where I dropped in a pic of the wiring diagram for the rear tail lighting. Can you read/follow this? At that 2x2 molex you should have (ref ChassGnd) - Running lights on the violet wire - Right Brake and Turn will be on Black/Db - Left Brake and Turn will be on Gray/Db Verify this first. Then inspect how the lights are wired. LED lights are a bit finicky to hook up. If you get the wires wrong they do not act as expected. Running/tail are usually dimmer when viewed. Brake and turn use the same wire, but brighter. ---
**Author:** ![UncleGemmy](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/unclegemmy/32/17230_2.png) [@UncleGemmy](https://community.electricforum.com/u/UncleGemmy)\ **Post date:** [November 17, 2025, 3:07am UTC](https://community.electricforum.com/t/gem-2005-es-rear-brake-lights-staying-lit-no-rear-turn-blinkers/29847/26 "2025-11-17T03:07:17Z")
Alright - final update for now! I ended up removing the 2x2 molex for the front lights and replaced them with 4x of these lever-nuts (none of the big box stores had molex connectors). I reattached those 4x wires exactly as they were before, turned on the cart and… all the lights work exactly as they should! Blinkers, brake lights, front and back - all working. Not sure what exactly I did to change the situation besides re-wiring but I’ll take it! Thanks everyone for all your help and brains!!! ![IMG_6059](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/3X/6/4/6460c4535fba5e77a3b3b9e4304082af8bda852e.jpeg) [Previous page](https://community.electricforum.com/t/gem-2005-es-rear-brake-lights-staying-lit-no-rear-turn-blinkers/29847.md?page=1)