Odometer doesn't work after ThunderMax install
Odometer doesn't work after ThunderMax install
I just installed a Thundermax w/ Autotune over the weekend (works awesome by the way...) and everything is great, except I lost the display on my speedometer. I have the Harley Speedo/tach combo part #70900070. The display where the odometer, fuel gauge, and gear indicator normally reads just shows 'VIN ER'. I'm assuming that the gauges are confused since the ECM was replaced. Is there something I can do or should have done to pair them together?
Stage I
Joined: Jun 2012
Posts: 1
Likes: 0
From: Texas
You have to input the VIN from your bike into the tmax tuner. I believe its in the tuning maps under module configuration/module service data. Make sure you use all caps. Hope that helped. I installed mine a couple weeks ago and am having an issue with the trip odometers returning to actual miles when the ignition is turned off then on. Heard anything on this issue?
Seasoned HDF Member
Joined: Sep 2007
Posts: 9,741
Likes: 1,598
From: Danbury CT
Seasoned HDF Member
Joined: Sep 2007
Posts: 9,741
Likes: 1,598
From: Danbury CT
It would be nice if we knew it before everything was tightened & buttoned up. It worked for me but I had to take out the Tmax, plug the original ECU back in, reset with the fuses & reset button, re-install the Tmax. I did have a code "V IN ER" in my speedo display and had no odometer readings which were all fixed with the recalibration. Good Luck!
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