# Defining wires on insturment cluster

**URL:** <https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347>\
**Category:** Maintenance/Repairs\
**Tags:** hyundai, elantra\
**Created:** [August 21, 2018, 1:25am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347 "2018-08-21T01:25:50Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![Jirradia](https://avatars.discourse-cdn.com/v4/letter/j/e47774/32.png) [@Jirradia](https://community.cartalk.com/u/Jirradia)\
**Post date:** [August 21, 2018, 1:25am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/1 "2018-08-21T01:25:50Z")

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Hi,  
I’m still new to car modding and I have a small project going around at the moment. I bought an instrument cluster that fits my car but from a newer model, just to clear things out it fits with same harness but since this cluster is from a newer car it seems to not work. I looked up wiring diagram on google but with no avail. I need help with tricks to find basic features like RPM, speedo, fual, and engine temp.

Note: I opened the cluster and looked for the positive and negative terminal on the PCB but they are not printed.

Any help is appreciated.

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [August 21, 2018, 1:50am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/2 "2018-08-21T01:50:02Z")

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> [@Jirradia](#):
>
> I bought an instrument cluster that fits my car but from a newer model

Why are you even asking this question?

You don’t provide the year of your vehicle, nor the year of the vehicle that replacement instrument cluster came out of.

And you expect us to provide a resource for a wiring diagram?

Tester

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<div class="post-metadata">

**Author:** ![It\_s-Me](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/it_s-me/32/12660_2.png) [@It\_s-Me](https://community.cartalk.com/u/It_s-Me)\
**Post date:** [August 21, 2018, 1:59am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/3 "2018-08-21T01:59:10Z")

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With today’s computer controlled cars, switching instrument clusters from one year to another usually isn’t possible.

And when it is possible, You usually have to take it into the dealer so they can reprogram the computer to the new cluster.

This is mainly done to keep people from putting low mileage clusters into high mileage cars.

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<div class="post-metadata">

**Author:** ![Jirradia](https://avatars.discourse-cdn.com/v4/letter/j/e47774/32.png) [@Jirradia](https://community.cartalk.com/u/Jirradia)\
**Post date:** [August 21, 2018, 2:00am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/4 "2018-08-21T02:00:12Z")

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I think the signal would be similar if not the same for every car. And to answer your question my car is 2007 and the cluster is from 2011. They have same plugs but the newer one has more features. I need to know how to look for signals form RPM and other gages.

Thank you.

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<div class="post-metadata">

**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [August 21, 2018, 2:02am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/5 "2018-08-21T02:02:41Z")

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You’re going to have to fork over some money if you want the wiring diagram

Go to the hyundai technical information website and pay the fee for 2-3 days of access to all the information you want

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<div class="post-metadata">

**Author:** ![Jirradia](https://avatars.discourse-cdn.com/v4/letter/j/e47774/32.png) [@Jirradia](https://community.cartalk.com/u/Jirradia)\
**Post date:** [August 21, 2018, 2:04am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/6 "2018-08-21T02:04:34Z")

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I don’t think my 2007 elantra that advanced. I tested a different cluster for 2009 or 2010 and it worked perfectly but it doesn’t have the engine temp gauge like my old cluster from 2007.

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<div class="post-metadata">

**Author:** ![Jirradia](https://avatars.discourse-cdn.com/v4/letter/j/e47774/32.png) [@Jirradia](https://community.cartalk.com/u/Jirradia)\
**Post date:** [August 21, 2018, 2:06am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/7 "2018-08-21T02:06:00Z")

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Interesting idea, but in the mean time I think I could manage with trial and error. Also there are only 2 harness that goes into the cluster and both have 24 pins each.

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<div class="post-metadata">

**Author:** ![It\_s-Me](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/it_s-me/32/12660_2.png) [@It\_s-Me](https://community.cartalk.com/u/It_s-Me)\
**Post date:** [August 21, 2018, 2:09am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/8 "2018-08-21T02:09:09Z")

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> [@Jirradia](#):
>
> I don’t think my 2007 elantra that advanced.

Maybe not, but the 2011 cluster is.

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<div class="post-metadata">

**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [August 21, 2018, 2:13am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/9 "2018-08-21T02:13:30Z")

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I hope you don’t short out something or cause an electrical fire

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<div class="post-metadata">

**Author:** ![Jirradia](https://avatars.discourse-cdn.com/v4/letter/j/e47774/32.png) [@Jirradia](https://community.cartalk.com/u/Jirradia)\
**Post date:** [August 21, 2018, 2:14am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/10 "2018-08-21T02:14:55Z")

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Then why the one from 2009 or 2010 worked?

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<div class="post-metadata">

**Author:** ![Jirradia](https://avatars.discourse-cdn.com/v4/letter/j/e47774/32.png) [@Jirradia](https://community.cartalk.com/u/Jirradia)\
**Post date:** [August 21, 2018, 2:15am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/11 "2018-08-21T02:15:59Z")

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That’s why I’m looking for something to catch the signal. And know which one is for which gauge.

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<div class="post-metadata">

**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [August 21, 2018, 2:19am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/12 "2018-08-21T02:19:07Z")

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Is it a money issue?

Car manufacturers typically only charge $20-25 to acess their information websites for 2-3 days

And it’ll eliminate any guesswork

information is considered a commodity nowadays

If you google it, your google hit will almost certainly produce thousands of wiring diagrams which have absolutely nothing to do with a 2011 hyundai elantra instrument cluster. It’ll be like looking for a needle in a haystack. Google is sometimes good, but not when looking for wiring diagrams

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<div class="post-metadata">

**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [August 21, 2018, 2:20am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/13 "2018-08-21T02:20:29Z")

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You’ve never heard of CAN bus?

> **[CAN bus](https://en.wikipedia.org/wiki/CAN_bus)**
>
> A Controller Area Network (CAN bus) is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other in applications without a host computer. It is a message-based protocol, designed originally for multiplex electrical wiring within automobiles to save on copper, but is also used in many other contexts.
> Development of the CAN bus started in 1983 at Robert Bosch GmbH. The protocol was officially released in 1986 at the Society of Automotive Engineers...

Tester

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<div class="post-metadata">

**Author:** ![Jirradia](https://avatars.discourse-cdn.com/v4/letter/j/e47774/32.png) [@Jirradia](https://community.cartalk.com/u/Jirradia)\
**Post date:** [August 21, 2018, 2:28am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/14 "2018-08-21T02:28:56Z")

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Money is partially an issue, but I’m feeling that I could manage to understand without paying. I already installed another cluster form a newer car so I’m taking my chances with this, maybe later on if nothing worked I’ll go with the diagrams.

Google didn’t help at all. I was so specific and that usually don’t present any results.

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<div class="post-metadata">

**Author:** ![It\_s-Me](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/it_s-me/32/12660_2.png) [@It\_s-Me](https://community.cartalk.com/u/It_s-Me)\
**Post date:** [August 21, 2018, 2:32am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/16 "2018-08-21T02:32:28Z")

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> [@Jirradia](#):
>
> Then why the one from 2009 or 2010 worked?

because the 2007 to 2010 are the same.

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<div class="post-metadata">

**Author:** ![Jirradia](https://avatars.discourse-cdn.com/v4/letter/j/e47774/32.png) [@Jirradia](https://community.cartalk.com/u/Jirradia)\
**Post date:** [August 21, 2018, 2:34am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/17 "2018-08-21T02:34:59Z")

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They are not. The old cluster had a temp gauge. The 2010 didn’t which is annoying.

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<div class="post-metadata">

**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [August 21, 2018, 2:35am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/18 "2018-08-21T02:35:46Z")

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> [@Jirradia](#):
>
> I installed another cluster from a newer model 09 or 10

> [@Jirradia](#):
>
> and the cluster is from 2011.

???

Tester

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<div class="post-metadata">

**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [August 21, 2018, 2:37am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/19 "2018-08-21T02:37:44Z")

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Is there a reason why you’re changing the cluster in the first place . . . ?!

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<div class="post-metadata">

**Author:** ![Jirradia](https://avatars.discourse-cdn.com/v4/letter/j/e47774/32.png) [@Jirradia](https://community.cartalk.com/u/Jirradia)\
**Post date:** [August 21, 2018, 2:38am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/20 "2018-08-21T02:38:57Z")

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The 2011 look exactly like my car. They changed the look of the elantra in 2012. Why would they change it the in the last year before the all new model?

Edit. It brock on me and I tried fixing it but most electrition says I have to change it. I looked in junk yards for same model but I didn’t find it or they asked for lot. I was on a hurry and most of the cheap one are from 09 and 10 because they don’t have the temp gauge. I had the new one for 8 months probably but I’m not comfortable with not having a temp gauge.

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<div class="post-metadata">

**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [August 21, 2018, 2:48am UTC](https://community.cartalk.com/t/defining-wires-on-insturment-cluster/123347/21 "2018-08-21T02:48:15Z")

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> [@Jirradia](#):
>
> I’m changing because the new one is much better looking. And the most important is it has a temp gauge.

And I bet the old instrument cluster had a temp **LIGHT**.

Tester

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