When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
The "digital" odometers store the accumulated mileage in the ECU. I replaced the speedo on my 2018 Heritage in April and the ECU made it read correctly. I don't recall having to do anything but plug it in.
That's only true in later models like yours. Digital odometers from the EVO days up through later models (at least 2008-2009 ish) used a Hall Sensor to send a signal directly to the odometer where it was stored locally on the board. Eventually, the MOCO figured out they could prevent mileage fraud if they married the odometer reading to the ECU. And they could also ensure that used gauges could not be reprogrammed easily. Earlier bikes did not have these mechanisms in place.
I know this is an old thread, but I have a solution for a LOT of bikes. Will work on digital odometers at least up to 2009 (maybe later).
Scenario: You replace a gauge set with a used one, but the mileage on your replacement gauge odometer is too low. Harley will not program a used gauge in my state.
Solution: Use a $25 signal generator off of amazon. Put your bike on a battery charger, Disconnect the speed sensor, and connect the positive lead to the signal wire at the speed sensor harness (female side), connect the negative lead to the ground on the speed sensor harness (female side).
Set the signal generator to square wave, and set the frequency to 22,800 Hz (any higher and my gauge started resetting). Put your ignition to the "ON" and "Run" position. Start your signal generator. You will add mileage to your bike at around 900 mph. I was able to run the generator at 22,800, but no higher than that; photo shows one of my tests at 19,999 Hz
***This is not for mileage "rollback". You can only ADD miles with this method.
Could you run through this in a little more detail. I purchased the signal generator but do I need anything else like alligator clips? Your help is greatly appreciated.
Could you run through this in a little more detail. I purchased the signal generator but do I need anything else like alligator clips? Your help is greatly appreciated.
I stripped wires and made jumpers to the signal wire and ground. You need alligator clips for your signal generator to do it how I did. The video link below shows essentially how I did it. I just ran the frequency much higher. Make sure your voltage is 10-12 volts on your generator. God speed
300 miles is easy to explain. If you don’t know what you are doing with the signal generator, what are you going to do if you overshoot by a few 1000 miles?
I know this is an old thread, but I have a solution for a LOT of bikes. Will work on digital odometers at least up to 2009 (maybe later).
Scenario: You replace a gauge set with a used one, but the mileage on your replacement gauge odometer is too low. Harley will not program a used gauge in my state.
Solution: Use a $25 signal generator off of amazon. Put your bike on a battery charger, Disconnect the speed sensor, and connect the positive lead to the signal wire at the speed sensor harness (female side), connect the negative lead to the ground on the speed sensor harness (female side).
Set the signal generator to square wave, and set the frequency to 22,800 Hz (any higher and my gauge started resetting). Put your ignition to the "ON" and "Run" position. Start your signal generator. You will add mileage to your bike at around 900 mph. I was able to run the generator at 22,800, but no higher than that; photo shows one of my tests at 19,999 Hz
***This is not for mileage "rollback". You can only ADD miles with this method.
You should patent it and call it "How many miles did you ride today"
300 miles is easy to explain. If you dont know what you are doing with the signal generator, what are you going to do if you overshoot by a few 1000 miles?
I needed to add 36,000 miles. It adds a mile every 3-4 seconds. If you overshoot it by 1000 miles, that means you left it running for an extra hour or so. It's a very forgiving time hack unless you fall asleep.
I stripped wires and made jumpers to the signal wire and ground. You need alligator clips for your signal generator to do it how I did. The video link below shows essentially how I did it. I just ran the frequency much higher. Make sure your voltage is 10-12 volts on your generator. God speed
this could be the Lazy Mans Iron Butt Ride....don't even have to leave the garage and log 1000 miles.....or 1,000,000 miles if you fall asleep
Ha! I didn't even think of that. It doesn't run the miles up all that that fast though, (1 mile every 3-4 seconds) I ran it overnight when I was putting on miles. About 8,000 miles in 8 hours. Worked out pretty darn well.
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.
Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.
Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.
