Clazzio Heated Seat Switch Backlight (Toyota Heat Single Switch)

Thought it's about time I add something to this forum.

So, I wanted heated seats and came across Clazzio's kit with a single Toyota switch that could control both front seats! (https://www.clazzio.com/heated-seats.php) It's a "small" switch so it can go right in the center between passengers and only take up one switch location!

If you go to their site and look at the photo you'll see that it's quite hard telling from their photo, but it kinda looks like the backlight might be a very close match to stock backlighting.

I'll admit in hindsight, I get some blue and black vs white and gold dress vibes from the lighting in that picture. But I honestly wasn't expecting this.

It was quite green.

Well, that can be fixed. Since I'm impatient (I'm certain they could be found cheaper elsewhere) I ordered these ice blue 0805 LEDs:

$10 ZZHOB 25PCS Pre-Wired 0805 SMD LEDs(Light Mode: Continuous Ice Blue Light) Micro LED Light Emitting Diode + Connector & Battery Holder (Ice Blue, 25pcs)

https://www.amazon.com/dp/B09MWGTCTQ as well as this assortment of 1206 resistors:

$10 Chanzon 1200pcs 1206 SMD Resistor Kit 0-10M Ω ohm 60 Values (Each Value 20pcs) 1/4W 0.25W ±1% Tolerance Thick Film 0-10MR SMT Chip Resistors Rohs Certificated

https://www.amazon.com/dp/B08RYMYWG9

If anyone else is bored enough to do this, here's what you do. I guess I'll put a disclaimer though, if you break your shit/somehow cause a fire it's on you. This is fairly straight forward though as you'll see.

Carefully pop the front of the switch off with the tabs on the top and bottom.


This part was a bit tricky. Started with 2 pry tools, one to unhook the first clip and another to begin opening and keep open the case .


With a 3rd pry tool repeat for the other side.


With those two pry tools holding pressure apart in the rear, simply pry a little on both sides in the place shown and your in! If you're following along look ahead, there are some BBs you don't want to lose.


Gently pull the case apart. You'll want to separate the halves with the "shorter" half on the bottom as shown.


Pull the top wheel and bb out and place somewhere you won't lose the bb and spring that's below it. The PCB is ours to play with.


You shouldn't need to remove the lower wheel, but it just slides on that plastic dowel. This pic just shows some more of it if you were curious... Tired of all these pics yet?


Anyway, this is on of the LEDs and it's polarity (red +, black -). There's one on each side of the PCB.


These are the pins and polarity that control the backlight.


And this is the resistor that controls the backlight intensity. There is also one of these on each side that controls its respective LED.


Use the

$70 YIHUA 959D-Digital Hot Air Rework Station, High Power with 3 Memories, Airflow Efficiency, °F /°C Display, Accurate Temp.(212°F~932°F), Brushed Aluminum Panel & Safety Features

hot air station that you used this project to justify buying (shh) and swap out the LEDs on each side of the board.


As well as swap out the resistors on either side of the board because the 1K ohm ones already on the board are way too bright. I used 22K Ohm, but I'd recommend using an even higher value, maybe 30K? I dimmed the light even further using some expired nomex tape I had kicking around (don't ask). I like my dash lights dim though.


If you feel so inclined you can test it. The lights are so dim because I'm using the diode setting of a multi-meter.


Put it all back together in reverse order and see how it looks!



So this was all a huge wall of bs with way to many pictures, but maybe it'll help someone. I've exchanged some emails with someone from clazzio though who said they may just modify the switches they have in stock. If they end up doing that I guess they got some free work instructions (that I'm sure they don't need, the workmanship on that PCB was beautiful) and everyone else gets a stock appearing dual heated seat switch.

-R

 

Awesome write up. I did the led swap and went with 33k resistors and it’s pretty close to the same brightness. My OEM switch color has a slightly darker blue tint to it but it’s not enough to bother me.