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Old Sep 21, 2019 | 07:42 PM
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Toolman
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Joined: Feb 2009
Posts: 1,002
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From: Philadelphia, PA
Default Re: Beeping above 75 mph

Inchworm it was a pleasure meeting and talking with you today. Having tested the 75 mph alarm I certainly understand how it can be repeatedly annoying when passing on the turnpike.

Wadsworth, I tested the procedure on the 06 coupe I purchased last month. It had a tire pressure light on, but I didn't bother with it because I was having new tires, and the Shrader sensors I purchased, installed at the end of the month. To my surprise the original sensors on the 06 had some battery life in them and the car relearned them. The light is out.

I suggested to Inchworm we try it on his car, but I could see with the DRBIII that no signal was received by the car when the relearn magnet was applied to the sensors. My opinion is the incorrect replacement sensors were installed.

I'm not very knowledgeable about TPMS. I know with my Charger and Jeep the car will learn new sensors on it's own. For the Crossfire the relearn magnet needs to be applied to each sensor when the Chassis ECU is ready to learn it. You start with the front left (driver side) and work your way around the car in a clockwise rotation. You move to the next tire after the scanner beeps the car has learned the specific wheel sensor. I believe the newer aftermarket sensors are the correct frequency, but they are not stimulated to send a signal by the relearn magnet. Look at the shape of the original Shrader sensor and some of the newer sensors you might see on ebay. They are very different. I expect the tire stores have the correct equipment to stimulate the new sensors with a tool they have, but they have no ability to have the Chassis ECU be in learn mode for each tire location. Anyone telling you the car will learn the new sensors while driving do not know what they are talking about when it comes to the Crossfire. The car absolutely cannot do that.
 

Last edited by Toolman; Sep 21, 2019 at 08:04 PM.
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