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Thread: RS4 Fault diagnosis

  1. #1
    apriliaforum newb
    Join Date
    Jul 2018
    United Kingdom

    RS4 Fault diagnosis

    Evening folks. Been googling for a while now but all I can find is posts relating to the rs125 or the rsv4.

    need to diagnose a fault on an RS4 125. Itís my first bike and while Iím familiar with car diagnostics Iím struggling with the bike. Iíve found what appears to be a diagnostics socket under the seat although I could be wrong (small oval socket with 2 wires). Is there a way to make faults show on the display either button combinations or bridging these two wires? Always been a home mechanic but if I need to bite the bullet and pay a dealer to do this then so be it.

    2012 Aprilia RS4 125. Showing red triangle with exclamation mark but no other lights accompanying it. And it only shows when itís really pushing on. Back off the throttle and the light goes off.

  2. #2
    apriliaforum newb
    Join Date
    Oct 2018
    I have the same problem, I have no idea what it is have a feeling it's something to do with the injector ?

  3. #3
    apriliaforum expert
    Join Date
    Jun 2013
    you need to connect a Piaggio or Aprilia scanner and read it out or delate the error. Car scanners are not compatible with the bike ecu.
    You can get it at any dealership.

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