Enjoyed More "Toyota Quality" Today

Very strange problem. I'm stumped. Fuses all check out A-OK.

And this coming right after I had to spend $700 to fix my clutch pedal.

Grrrrr...

https://www.youtube.com/watch?v=TUxG4XDpe9M&feature=youtu.be

 

could be a ground problem

 

Any mods that could be messing with it ?

 

Truck has no mods except the ScanGauge, which I unplugged to test but it didn't make any difference. I've also never immersed this truck in water or anything. I did pressure wash the doors once but that was like a year ago.

 

Are you the original owner? Is the truck out of warranty? I see your description says 2012.

 

Tail lights work as intended?

 

Yes original owner, yes well out of warranty due to mileage.

 

Yeah all other lights check out. Is there a main ground somewhere for the whole dash? Seems like a good place to start...

 

It's a factory head unit too?

 

You checked all fuses in the cabin and in the engine bay?

 

Yeah whole truck is factory. No weird mods

 

Yes! They're all good. Looked at each one and no busted or burnt wires

 

Wonder if Toyota hired a VW worker to wire up your truck!!

 

Did you check the dimmer scroll?

Edit: video just loaded, nevermind.

 

I'm just thinking out loud, but it seems like a relay isn't switching over. Dash lights are staying on the 'daylight' mode, and not switching over to go through the dimmer. Radio is probably related to the same thing. If you had a good wire schematic, you might be able to trace it out an see what relay is involved. The relay in the fuse box may be marked well enough to figure out which one it is.

 

That's a good thought about a relay. But where can I get the wiring diagram for the dash illumination?

 

Stop scaring me!

 

Probably have to go with a site that has online service manual downloads. Toyota doesn't sell a factory service manual anymore, unfortunately.

 

Here's something to try from the troubleshooting of dimmer in the service manual.

http://www.customtacos.com/tech.old/files/05FSM/data/ileaf/06toyrm/06toypdf/06rmsrc/rm2006ta/0540012.pdf

The service manual.

http://www.customtacos.com/tech.old/files/05FSM/repair.html

 

Just noticed this morning that the turn signal indicators (green arrows) don't illuminate with the turn or hazard signals on, though the turn signals themselves work fine.

Something really screwy is going on. I hate to pay the dealer to figure out the problem, but I don't have the resources to do it.