lurch
Well-Known Member
I am starting to get this message once or twice a week. My Expy hasn't hit 5K miles yet. Tires are fine and within 1 PSI of each other. I am mostly in 2wd on dry pavement when it happens.
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That error is displayed when the vehicle thinks there is something out of place between the sizes of the two rear tires. For example, if you were running a spare that was smaller than the other side, it would/could display that. So, if your tires are the same size, and both aired up to the same pressure (not sure if a low tire pressure would be enough to cause this) then I would suspect it is a bad wheel/abs sensor or whatever sensor they are using to match the two sides. Basically, it thinks one tire is turning at a different rate than the other. Again, a bad sensor, a bad connection, bad wiring. Now days, with all the sensors they have to see it happening to get their computer to pull the code to tell them which sensor is malfunctioning. I still don't know why these auto manufacturers don't program in the system to log all faults and errors. Even if they just held all faults for a few days it would be very helpful.
I don't see this damaging anything on your expy, it is just limiting the diff from locking up as much as it could. I would want it fixed but I wouldn't be worried something major is wrong. I think a chat with another dealer would be worth it.
I haven’t seen this with my Platinum 100% 2H so far. Having said that I have have seen more cases of failed rear diffs in a few different awd brands in recent years. All brands running the independent rear suspension/ pumpkin diffs with very similar limited slip tech seem to have a higher number of bad rear diffs right off the show floor. Not sure why other than they are probably easier to screw up during assembly. I wonder if the actual rear diff has a sensor or if this error would be more likely from the clutch pack in the 10spd that pushes power through to the front end? I don’t know enough about how the awd system works yet. But first thoughts are correct fluid at correct level being first check when getting odd errors like that.I am starting to get this message once or twice a week. My Expy hasn't hit 5K miles yet. Tires are fine and within 1 PSI of each other. I am mostly in 2wd on dry pavement when it happens.
I haven’t seen this with my Platinum 100% 2H so far. Having said that I have have seen more cases of failed rear diffs in a few different awd brands in recent years. All brands running the independent rear suspension/ pumpkin diffs with very similar limited slip tech seem to have a higher number of bad rear diffs right off the show floor. Not sure why other than they are probably easier to screw up during assembly. I wonder if the actual rear diff has a sensor or if this error would be more likely from the clutch pack in the 10spd that pushes power through to the front end? I don’t know enough about how the awd system works yet. But first thoughts are correct fluid at correct level being first check when getting odd errors like that.
I had a message this morning that said something like slip differential reset which I had never seen before. It showed up right when I started my car. Its been extra cold in the mornings here in AZ so no idea if that has anything to do or what. I will keep an eye on it.