climate control lights blew out

ok so my climate controls went dark. I replaced the bulbs. still dark. i replaced the whole unit still dark. the a/c button and the recirculate button light up! the dials are dark. I even tested the new bulbs with a battery. Yes they do work. Any ideas?

 

Are your PRND432L lights by the shifter fuse out as well?
Then the rear tail light fuse in the cabin is blown.
Your tail lights are out as well. They will be on when you press the brake, but not just running with the headlights on as usual.

 

Just went outside and checked PolarBear. All the other lights work. any other ideas? stumped

 

I have the exact problem with mine, the dials are out but a/c, recirc, PRND, and tail lights work. I always thought it was just the bulbs and have been meaning to order new ones but haven't gotten around to it yet. Hopefully someone who has dealt with this can give us some input.

 

my truck is a 2009. I thought it was the new bulbs but they light up with a battery attached. so weird.

 

Sub'd

 

Also subbed.. I have this problem on my 09 as well.. I always thought it was the bulbs (ive never tried replacing them) but after reading some of these comments idk if it is the bulbs after all.

 

Hmm, I don't really know of any other suggestions.
Maybe some part of the wiring harness in the dash has gone bad/frayed/snapped?
Visually check

 

FWIW...
Some of the lights on my CC (2007) weren't working for a while - I just ignored it. One day I tried to start the truck and I heard a bzzzt noise and truck wouldn't start!! I found out that ( for some reason) there was a short in the plug where the CC harness plugs into the whole front assembly (assembly with the knobs). It was all black and fried.

I ended up buying another CC assembly, used. Luckily, I was able to clean out the wiring harness end - it was fine after that.


Check the plugs ... both ends???

 

I just bought new bulbs and they worked perfectly for a day and now they are out again. If I tap on the panel, they will sometimes come on and then go off again. I know it's not the bulbs and they are working intermittently. Strange.

 

I had that too. If I pushed the panel it would light. Then one day that stopped. It's a replacement unit and still the same thing. I have the LED four wheel drive lights hooked up to the same power source/harness that goes to the climate control and it lights up. I checked the harness and there's nothing broken or frayed.

 

Little things like this drive me crazy. I wonder how common this issue is.

 

me too. I was actually thinking of adding a LED above the climate controls under the radio to shine some light on the knobs at night

 

check power coming in to the unit. use this thread to check which wire has power coming to the unit.https://www.tacomaworld.com/threads/rcbs204-4x4-illuminated-switch.68173/ download the pdf you wire it to the power for illumination for the climate control. Hopefully that will help you.

 

This would have been my quests as well. Had this happen on mine. I'd maybe try to disconnect plug, inspect, apply dia electric grease and recheck. Sounds like some of you guys are dealing with and intermittent issue?

 

My auto lsd lighted switch intermittently decides to light up and then go dark. Ive checked the connections and theyre good.

 

Same thing happens to me intermittently. Bulbs alternate off/on. Drives me nuts. Replaced bulbs. Same results.

 

Me to I need to tap the switch that controls settings. Been like this for years. Maybe this spring I'll pull unit and check connections because it's not the bulbs. Maybe Some will give us a more comprehensive explanation to fix

 

Bumping this thread. Having the same issue. Replaced the bulbs, only 1 worked for a day and now they’re both out for good.

Going to check the fuse and plugs for shorts today, but I doubt that will resolve the issue.

anyone out there find a solution?

 

Just bought my truck, but I am only without lights on the fan speed knob.