Test Mode Codes

[daccro13]

I was reading on another forum that I could get to some test codes on the truck. I was told to hold the trip odometer reset button with the truck off, turn the key to the on position until it says test mode and then start the truck. This worked just fine, I got to my battery level just fine but what I was wondering is if anyone knows what all the other codes means. The 2 easy ones to find were the rpm and the battery, but all the others I didnt know what they meant and I thought it would be nice to know.

Any advice on where I could get a list of these codes or if anyone knows what they mean let me know.

Thanks in advance.