12v Power Outlet Not Working (Cig Lighter and 115v Outlets Work Fine) (2 Viewers)

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Jun 28, 2020
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Location
Seattle Area
Hey everyone,

The 12V Power Outlet which is below the cigarette lighter on my LC200 has never worked since I got the car. I have done a lot of research on this forum and other places on the internet but can't find any answers. So I got a chance to open the console today and check all the components to see what's wrong with it:

- The fuse is fine (Fuse No. 26, 15a)
- The fusible link behind the port itself is fine. I hooked it up to the connector for the cigarette lighter and it worked fine.
- The cig. lighter port (12v) works fine
- The 115v outlet in the rear works fine
- Just to be sure I changed the fuse and hooked up another power outlet and it still didn't work.

I checked the wiring diagram and realized that there is a relay in the main body ecu (cowl side l/h junction box). I found this in the wiring diagram of the inner assembly of the junction box (pic below).

Since the fuse is fine, and the port is also fine I suspect that the relay is the culprit.

Does anyone have experience fixing this? Could the problem something that I am missing and not the relay?
Does anyone know if I take out the junction box, will I be able to open it and replace the relay?


I appreciate your help in advance.

Wiring diagram of the 12v power outlet:

Screenshot 2023-08-09 at 10.08.46 PM.png


Location of the main body ecu (cowl side LH junction box):

original.jpg


Wiring diagram of the inner circuit of main body ECU:

Screenshot 2023-08-09 at 10.20.59 PM.png
 
I don’t have experience replacing that relay, but I’m curious if you’d considered to just re-wire the cig socket to an add-a-fuse at this point?
I've thought about that, I'm worried about the current draw though. The cigarette lighter wires are very thin. I will have 4 devices plugged at the same time: 2 phones, 1 ipad, and 1 camera battery charger with 3 batteries.
 

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