Diagnostics mode on 03-04'

[LegitLogan]

Hey i didn't know you could do this...i found out how to display truck diognostics on the odemeter.

Put key in, don't turn on...push and hold trip reset. turn key to on, but don't start. hold trip reset until gauges sweep...press trip reset until the tac shows up, start vehicle. It goes back to normal once you turn of truck and back on again.

Just a nifty tip i thought i'd share. i'm not sure if it work's on the later year 6.0s.

[spastik monkey]

Can anyone explain what all the different readouts are? I know some are self explanatory, but others are confusing. But it's also a cool way to pull codes without a scanner

[TooMuch03]

I am going to try this. Good information. Thanks

[U235a4]

works on my 05

[ConJohnRobTx]

Never knew it did that. But yeah what does all of it mean?