To display fault codes:

1)  Remove right side panel (the piece that covers the rear subframe and lower gas tank) by removing the two 4mm button-head Allen bolts. Be careful of the plastic tabs on the backside of the panels.

2) You will find two unconnected wires near a big harness clip near the side of the battery. You cannot miss these wires. They are the only 2 unconnected wires in there.

3) Connect the two wires together.

4) Turn key  switch to "ON/RUN".

5) DO NOT start or attempt to start engine.

6) The message "DIAG" should appear on left LCD screen along with a number indicating the Fault Code.

7) If your bike is still under warranty, let your Aprilia dealer do all of this.

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