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How do you reset an engine light fault?

21K views 12 replies 7 participants last post by  PeterV  
#1 ·
1999 FXDWG, replaced the MAP Sensor this time to clear the Engine Light but I still have the 'history' light that comes on for a few seconds after you start the bike. Dealer said to turn the ignition on/off 50 times but no joy. Does anyone know how to clear it without going back to the dealer? Also, what is the Diag Code "CAL 09" that appears after all the 'd01-10clr' codes?
 
#2 ·
I don't have my manual handy but I think you can disconnect the battery for a couple of minutes or pull the fuses and that resets the history. Or ignore it for a couple of weeks if you are sure you fixed the problem.
 
#5 ·
I had the same problem. Search "error codes" in this forum and you will find how to get in there and erase it easily. there are a few different ways..

good luck
 
#6 ·
Thanks Ed

Ed Y said:
The dealer can clear it with the Scanalyzer or just wait until you get 50 start cycles on it.

Just dropped my papers on Monday, will retire as a CPO with 23 years. Thanks for the note, dealer wasn't sure if it was 50 Starts, or 50 turn-on's of the ignition.

Chris
 
#8 ·
Saw this done at dealers

On a fatboy, in the car park, dealer did the following to clear historical code. Push in odometer reset button and turn on ignition at the same time. Scroll through codes until a numbered fault code travels across the odometer read out. Press the odometer reset button for aprox five seconds and cleared should come up. Thats it next time you start engine management light will come on for four seconds, go out, and hopefully stay out. Good luck buddy, ride safe.
 
#9 ·
sparkman said:
On a fatboy, in the car park, dealer did the following to clear historical code. Push in odometer reset button and turn on ignition at the same time. Scroll through codes until a numbered fault code travels across the odometer read out. Press the odometer reset button for aprox five seconds and cleared should come up. Thats it next time you start engine management light will come on for four seconds, go out, and hopefully stay out. Good luck buddy, ride safe.
sparkman , all that does is CLEAR the code it doesn't erase it , it either needs the scanalyser or 50 start/run cycles of 30 seconds minimum duration to erase the code from the memory .
 
#10 ·
Im a rookie to Harleys however !

Lets verify that we are talking about the same thing.
The amber engine warning light that comes on for 4 seconds when you switch the ignition on then goes out.
If you have a historic fault it comes back on for 8 seconds 4 seconds later, and thats the one the dealer got rid of using the procedure I posted. If I got it all wrong, and I am talking from where the sun don't shine, please excuse my ignorance.This is a great site with great people sharing a wealth of knowledge with all.
Ride safe. :)
 
#11 ·
sparkman said:
Lets verify that we are talking about the same thing.
The amber engine warning light that comes on for 4 seconds when you switch the ignition on then goes out.
If you have a historic fault it comes back on for 8 seconds 4 seconds later, and thats the one the dealer got rid of using the procedure I posted. If I got it all wrong, and I am talking from where the sun don't shine, please excuse my ignorance.This is a great site with great people sharing a wealth of knowledge with all.
Ride safe. :)
sparkman , I know what you mean - however that bike must have been near the end of the 50 cycles for the code to be erased - when you clear the code and the code stays clear that means that you don't have a problem , if the code immediately returns then the problem still exists , a scanalyser is then used to identify the exact problem (the number codes don't narrow the problem down far enough) eg , a kickback at start up is sufficient to trigger a code which can be interpreted as a fault in the ignition system . The whole system is a pain in the butt - but we are stuck with it . The historic code is sampled by the scanalyser and it can identify the exact cause , that's the reason that clearing the code doesn't erase it as well , giving the rider a chance to get to the dealer with the historic code still intact .
Hope that makes sense !
Regards , X .
 
#12 ·
Thanks X

I follow where your coming from now, and yes I can see why a system blip could be a pain in the preverbial.
The guy with the fatboy reckons he only started having problems after screamin eagle slip ons and air filter along with a remap were added to his bike.But thats another story.
I have the screamin eagle setup on my heritage from day one and love the sound sometimes I get the odd pop from the exhaust on startup but nothing that trips the engine fault light (Touch Wood)
 
#13 ·
Don't confuse engine codes with speedo codes. The procedure somebody was talking about earlier involving the trip/odometer reset button brings up stored fault codes that are speedometer related ONLY. And there are a few of them, I believe 7.