Running lights and dash/radio not working

JEVANDEFIFER

MEMBER
2010 KIA SPORTAGE
6 CYL
4WD
AUTOMATIC
200,000 MILES

We just bought this car super cheap knowing this was the issue but were told it just needed a new fuse box. Replaced that today with all new fuses as well and still no running lights, radio, or dash lights?
Brake lights and headlights work.

Sunday, March 20th, 2022 AT 12:44 PM

1 Reply

KASEKENNY

MECHANIC
18,907 POSTS

We need to do a little more digging on this because I suspect they are close to what the issue is but clearly the junction box was not the issue.

So, each of these lamps uses the tail lamp relay so we need to find out if the relay is being commanded on.

We do this by checking the power coming into the relay on terminal 86 and 87.

https://www.2carpros.com/articles/how-to-check-wiring

Then we need to check pin 85 for ground and see if the ETACM is grounding the relay to find out if they are being commanded on.

You do this by putting your meter on battery positive and then the black lead on terminal 85 and turn the lights on. If the meter reads 12 volts, then the module is telling the lights to come on.

Please see the wiring diagrams below and let us know what you find with this. Thanks

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