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Wrencher Extraordinaire
2005 K1200LT
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15,068 Posts
The brain may have "forgotten" the trip point and you need to reset it next time you know you have about 1 gallon left. If this does not fix it then the control unit has gone south.


  1. Empty the tank and fill it with 1 gallon (or your desired quantity).
  2. Make sure you have access to the diagnostic port of the Motorcycle and identify pin 3 and pin 4.
  3. Turn the ignition on.
  4. On the diagnostic port, short pin 3 (brown/black) and pin 4 (brown) for two seconds. (Make sure you have the CORRECT pins - you don't want to short Battery voltage to GROUND by mistake).

  5. The tank reserve light should flash quickly. When the flashing ends, the calibration is complete.
 

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Discussion Starter · #5 ·
I am not so bright the reason the light came back on was there was not enough gas in the bike. Went and filled it up and the light went out. Thanks for the help. Now to go work on the abs
 
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