Setting up new TPMS sensor?

I just bought some used ko2's and SCS wheels and installed them last night. TPMS light came on after driving about 75 miles. How do I get my truck to learn the new TPMS in the new wheels?? Do I need to buy one of them scan tools? Someone please help, Youtube videos are all over the place. I know about the button underneath the steering wheel, but what do I do?

Thanks guys!

 

I’ve never been able to correct tpms on these things. According to my dash... I’m always running with flat tires

forgot to add my pops favorite thing...if a dash light comes on that you don’t want to mess with, electrical tape will fix it lol

 

The button underneath is for setting the pressure (as in, you make sure your tires have the right air pressure in them, and then push this button to make sure the system knows that this amount is good).

Did you just switch your old sensors over to the new wheels? Or did you use new sensors?

The TPMS system needs two things to be happy:

1. Sensors operating on the right frequency (315 MHz)
2. Sensors barking the right codes - each wheel has a unique code

If you used new TPMS sensors, the chances are high that they aren't sending out the codes the TPMS module in the truck is expecting. If that's the case, you'll need to find someone with the proper tools to reprogram your truck's TPMS module so it will recognize the new codes. It won't work otherwise.

You can also clone your old sensors, but that would mean unseating the tires and replacing what you have now with cloned sensors.

 

Here is something I wrote a while back about how the TPMS system works.

Here's how it works. The sensors are 1 way communication. The truck listens to the information being sent to it by the sensors. The truck only listens to sensors it's been programmed to listen to. Let's call them Bob, Jake, Johnny, and Rafael. So, each sensor tells the truck what presure is in the tire. Let's say they're all at 32. When you push the button, the truck learns that 32 is normal pressure and keeps the light off. Now, 1 morning Johnny is on a bad hangover and tells the truck he's only at 25PSI. The truck turns on the light to let you know. You give Johnny some pepto bismal(air), the truck is happy and turns out the light. On your way to work, there's a Tacoma beside you at the light with a low tire. That sensor is named Brittany. Your trucks light doesn't come on because your truck doesn't listen to Brittany.

So, when you get new sensors, there's 2 ways to make the truck happy.
1. Pull new OEM or aftermarket OEMtype sensors off the shelf and program the truck to listen to them. Now the truck only listens to George, Paul, John, and Ringo. This programming can only be done by plugging into the truck OBD2 connector.

2. There are aftermarket sensors that have no name. It's like adopting a puppy at the shelter. Your dog Bob crosses over the rainbow bridge. You go to the shelter and adopt a new puppy and name him Bob. (The tire shop programs the nameless sensor to say, "Hi, my name is Bob") Now your truck still listens to Bob. Your truck isn't smart enough to realize it's a different Bob. He thinks it's the same old Bob, and is content and patiently waiting for Bob to go on a drinking binge.

 

The following thread may help:

https://www.tacomaworld.com/threads/help-me-with-tpms.667274/

 

Sensors typically last around 7-8 years. Your truck is 8 years old. I'd have bought new sensors before I bought tires and had them installed when you had the tires mounted. No tire store would charge any extra at that time. If you buy new sensors now they aren't terribly expensive, but you'll have to pay a tire store $10-$20 per tire to install them

 

You can install them yourself for free, without affecting balancing. Programming the ECU is another matter.

 

Thanks guys, I got new TPMS sensor in the new wheels I put on. Going to get an alignment done this week and I will most likely just have them work on those while im there too.

 

You build a pressurized canister like this one...shove the sensors in there, pump it up to 32psi, throw it under the seat and forget about it!
Costs about 10 bucks. Lots of videos on how to make them.

 

Appears some of you know about TPMS. Quick question. For about a month I'll be running wheels with no TPMS. When I put my original wheels with sensors back on will my truck see the sensors?

 

Yes