Check engine light

None of the odometer obd II tricks seem to work for checking the code. Do they actually work?
what’s the best code scanner to get?

 

go to autozone its free or just buy one at auto zone or wallmart, they all work. you get the code and do a search here to see what others have done, gl

 

You can get a cheap obdII dongle that plugs into the port and connects via WiFi or Bluetooth to your phone, the Torque app is free for the basic version and will read/clear codes.

Amazon sells the dongles for ~25 bucks give or take

 

BlueDriver if you have a smart phone.

 

LOL, yeah, they work. The 'right one' depends on a few factors but these are simple trucks so pretty much any decent reader works.

 

Your trying to complete all the test cycles??

Sometimes the the test short cuts work sometime not.

I like my Actron CP125 because it also reads the CAN system which I needed as well as OBII

 

What is the CAN system?

 

CAN is a diagnostic system used on Mid Size Trucks

I think it was developed in Germany

 

Controller Area Network

https://www.techopedia.com/definition/32255/controller-area-network-can