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Originally Posted by markcee
I had initially calibrated the unit using the more automated method of entering my VIN and like you, found the weighs to be pretty off. I contacted tech support about the inaccuracy and they had me redo the calibration using the manual process which takes about 15 minutes of parking lot starts and stops at various accelerations.
I also suggest shooting them an email if you continue to have issues.
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I bought a used unit last fall. It picked up the VIN, asked me to type in the yellow sticker number, asked me the typical weight of passengers and permanent cargo in the truck, then went through the "starts and stops at various accelerations" procedure. But I didn't get around to calibrating the trailer portions until a couple weeks ago, and when I tried, I found that the unit's Bluetooth radio had gone dead, so I ended up returning it and buying a replacement new.
The replacement was unable to pull up the VIN from the OBD, but the app was able to scan the door sticker. It didn't ask me anything about passenger weights (luckily, I had approximately the right weights riding with us at the time). The setup calibration process was different -- no varying accelerations, just medium acceleration every time, and no indication that there was any progress happening until the app said "You're done."
I'm going to be calibrating the trailer portions Monday, as I have to transport my rig on Monday anyway.
If you need help from Curt, I'd suggest you call rather than email. I emailed them a question Wednesday and still haven't heard back. But when I call, the hold times have always been very short (1-2 minutes) and I get a knowledgeable tech immediately without having to go through a "take your name please" drone.
Quote:
Originally Posted by notanlines
Danny and Danny are on the money. I’d dump that thing and then head to CAT. At that weight accuracy is important.
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The unit has one interesting feature that, to me at least, makes it worth the price. It can tell you when your WD is set properly. On my hitch, the WD isn't a static link or bar setting, it's a continuous jack (actually, two), and you have to crank it up every hitchup. We use a "calibrated yardstick" to make the process more or less repeatable, but having confirmation that our initial settings weren't way off would be peace of mind, plus we can check from time to time for any "drift" in the WD assembly.