Codes HELP! Harley Evo Discuss Codes HELP! in the Motorcycles forums; Anybody know how the get the DTC's to show up on the speedometer display for 02 Fat Boy...

[cruiser]

Anybody know how the get the DTC's to show up on the speedometer display for 02 Fat Boy

[rjrivero]

The IM (instrument module) is capable of displaying DTC's (diagnostic trouble codes). (I think the 2002 Fat Boy uses the Delphi EFI system.)

1- Ignition off
2- push odometer reset button in & hold. Make sure run switch is on.
3- turn ignition to run and release button (you will see P, S &C displayed)
4- each letter represents an area of diagnostics... the one that is flashing is the one you are going to check. To move from one letter to the next, you push the button one time. (from P to S to C and back to P, etc.)
5- to get DTC within an area, you push and hold the button in for 5 seconds and if there are any, it will be displayed... you can release the button. As you push the button again, other codes will appear if they are there. If there are not any the word 'none' appears.
6- Record the codes.
7- To determine if a code is current or historic, you clear the codes while being displayed by pushing in and holding the button until 'clear' comes up. Turn off the ignition... then crank or restart the bike... turn off, and then repeat the code process. If a code is there now, its current... if not, it was historic.