@JC
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- Jan 22, 2020
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Must work differently than the Rough Country Speedometer Calibrator then because I plugged into the one furthest from the seat and it worked fine.
I would talk to AEV first as some have had issues that required a tow to the dealer to get sorted and now that there is the warning they probably won't pay for the repair or tow. You can down load the instructions from AEV's site. They mention only one green star connector and in fact there is two green star connectors on 2020's and it needs to be plugged into the one closes to you which is also a little wider. My buddy first plugged into the one closer to the fire wall as the instructions say it does not matter which slot. He came over and looked at mine and plugged into the same slot and all worked fine. He did have his check engine light on for an hour or so but it went out and never came back. I found AEV very helpful so I would call them first and see what they say. Also on the instructions there is a tech number to call and I would call them before trying to program with it.