# Wiring diagram for 2008 e2 **URL:** \ **Category:** GEM Forum\ **Created:** [August 6, 2019, 7:24pm UTC](https://community.electricforum.com/t/wiring-diagram-for-2008-e2/16804 "2019-08-06T19:24:14Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![zuke](https://avatars.discourse-cdn.com/v4/letter/z/858c86/32.png) [@zuke](https://community.electricforum.com/u/zuke)\ **Post date:** [August 6, 2019, 7:24pm UTC](https://community.electricforum.com/t/wiring-diagram-for-2008-e2/16804/1 "2019-08-06T19:24:14Z")
I reacently purchased a 2008 gem e2 with bad batteries, the guy said that the only thing wrong. So I replaced the batteries with Gel batteries just like the car had now the charger does nothing at all. The 2 wires in the picture with black arrows were hooked to nothing and one battery was missing when I purchased the car. Do they two wire have anything to do with the battery not working? One is blue with a yellow stripe and the other one is yellow with a red stripe? There is a Eye loop on positive cable attached to the two wires in the red circle. Please let me know I cant find anything on line.Thanks in advance for any help!!! [wire%20with%20no%20home|375x500](https://community.electricforum.com/uploads/short-url/woQhkAflUjNeSvrOphNzcnFVeDH.jpeg) ![eye%20loop%20on%20positive%20cable](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/0/0482fa17e53a4ef488493ff4310bb0e56a8076ad.png) ---
**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:** [August 6, 2019, 9:59pm UTC](https://community.electricforum.com/t/wiring-diagram-for-2008-e2/16804/2 "2019-08-06T21:59:11Z")
That is the temperature sensor for the charger. It is needed in most cases for charger to work. Look for 2 qc wires that fit the qc terminals in your picture. One wire is B-, the other will measure about 3.3v to B-. So if you have 3.3 dc volts between them, they should be correct. ---
**Author:** ![zuke](https://avatars.discourse-cdn.com/v4/letter/z/858c86/32.png) [@zuke](https://community.electricforum.com/u/zuke)\ **Post date:** [August 7, 2019, 1:47pm UTC](https://community.electricforum.com/t/wiring-diagram-for-2008-e2/16804/3 "2019-08-07T13:47:27Z")
I have -3.7v on the blue/yellow stripe wire and -22.8v on the yellow/red stripe with charger pluged in and just a reminder the charger does not light up at all no test or anything. With the charger not plug in I am reading -2.9v on the blue/yellow stripe wire and -18.1v on the yellow/red stripe. So on the one positive cable going thru the battery handles circled in red I have the a blue/orange stripe and yellow with black stripe connected together on the positive with a eye terminal. Could this be the temp sensor? Is there also a Minimum Voltage set of wires? Could this tithe two wires not connected? vs versa ---
**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:** [August 7, 2019, 2:26pm UTC](https://community.electricforum.com/t/wiring-diagram-for-2008-e2/16804/4 "2019-08-07T14:26:33Z")
If leds on charger don’t blink when charger is first plugged in, charger is bad. If sensor wires were inadvertently connected to B+ it could damage the charger and melt one of the wires. I don’t know for sure, as I haven’t heard of anyone doing it. Any voltage checks on the battery system are referenced to B-. (battery neg) Don’t remember the colors. I can look at mine if we need to know. If there are not two small wires near the battery with mating terminals to you sensor, I suspect someone connected them to B+. B- would not damage charger, B+! ??? ---
**Author:** ![cftyson](https://avatars.discourse-cdn.com/v4/letter/c/e480ec/32.png) [@cftyson](https://community.electricforum.com/u/cftyson)\ **Post date:** [August 21, 2019, 3:49am UTC](https://community.electricforum.com/t/wiring-diagram-for-2008-e2/16804/5 "2019-08-21T03:49:35Z")
I have a problem with the wiring to the batteries also. I had a friend that thought he was helping and started taking the batteries out because they were bad and I was going to change them out. I usually take pictures before I start so I can refer back if needed, but I didn’t get time to before he got started. He unhooked the 2 wires going to the parking brake and that was an easy one. The other is two wires connected together coming out of an eye terminal, so I know it goes to a bolt terminal om one of the batteries, I just don’t know which one. It’s a 2006 E2, 2 seater. ---
**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:** [August 21, 2019, 4:26am UTC](https://community.electricforum.com/t/wiring-diagram-for-2008-e2/16804/6 "2019-08-21T04:26:33Z")
That is a temperature sensor. Connect it to any battery terminal. ---
**Author:** ![Josh\_Gibbs](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/josh_gibbs/32/6795_2.png) [@Josh\_Gibbs](https://community.electricforum.com/u/Josh_Gibbs)\ **Post date:** [June 21, 2020, 7:19pm UTC](https://community.electricforum.com/t/wiring-diagram-for-2008-e2/16804/7 "2020-06-21T19:19:17Z")
![image](https://canada1.discourse-cdn.com/flex030/uploads/electricforum/original/2X/6/6b79b2dd18584ac76b1abec6c8d52eab6d2b1447.jpeg) This should go to any battery terminal? ---
**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 21, 2020, 10:08pm UTC](https://community.electricforum.com/t/wiring-diagram-for-2008-e2/16804/8 "2020-06-21T22:08:03Z")
Yes, it senses battery temperature. The large ring in not connected to anything electrical. “isolated” ---
**Author:** ![GEMNTONIC](https://avatars.discourse-cdn.com/v4/letter/g/e274bd/32.png) [@GEMNTONIC](https://community.electricforum.com/u/GEMNTONIC)\ **Post date:** [August 31, 2020, 9:54pm UTC](https://community.electricforum.com/t/wiring-diagram-for-2008-e2/16804/9 "2020-08-31T21:54:42Z")
Same issue here, buddy forgot to connect it ! Any particular terminal? [image|375x500](https://community.electricforum.com/uploads/short-url/3sVPV8SyUtOYCGczZ7AEz4Ko83J.jpeg) ---
**Author:** ![MikeKC](https://avatars.discourse-cdn.com/v4/letter/m/90ced4/32.png) [@MikeKC](https://community.electricforum.com/u/MikeKC)\ **Post date:** [August 31, 2020, 10:17pm UTC](https://community.electricforum.com/t/wiring-diagram-for-2008-e2/16804/10 "2020-08-31T22:17:33Z")
> [@Inwo](#): > > The large ring in not connected to anything electrical. “isolated” Any terminal is fine.