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This isn't an issue that most will have with our markers. It's very rare.
Our policy is 90 days if you experience it. No money out of your pocket, we'll accept them back.
We do not know why most run them no problems and some have issues with the TPMS.
Thanks everyone for the kind words. If anyone has questions or concerns feel free to PM me.
Thank you for addressing the problem. As I said, I like the clean look it gives my black '19 GS. I have yet to give it a test but I will look to doing just this this coming week. Hope all is well!
Rich
we should be able to test in the day also right? just turn on the lights and wait 20-30 min?
Yes. Got to be freeway speeds though. Watch your tire pressures. The rears will go up a few psi after 15-20 minutes, but the fronts won’t change. Eventually the system times out waiting for an update from the fronts (or maybe just the right front) and triggers the error.
If you throw some stop lights in this drive, it will probably not trigger the error. In my trial and error testing, my front tire pressures would not update as fast as the rear, but they still hung in there if I only drove on city streets with the lights on.
Been thinking about this for a couple of days now. Here is my plan. I hope to get the JW side marker lamps installed today (6/8/2020). I will then just drive it for a few days to see if the TPMS issue appears. If it does happen I will install a 10 picoFarad capacitor across the leads on the drivers side rear marker lamp. That is the one closest to the TPMS receiver and likely has the most effect on the readings. Will then drive for a while to see if issue reoccurs. If the issue happens again I will put a cap on the passenger side rear marker lamp and test again. If no improvement will do the drivers front then finally the passenger front. There is little reason to do more than needed and the caps are dirt cheap but I prefer to not make more changes to my car than necessary.
If i do not see the issue like most, obviously I will not be any help for others but if I do, perhaps there can be a solution.
Been thinking about this for a couple of days now. Here is my plan. I hope to get the JW side marker lamps installed today (6/8/2020). I will then just drive it for a few days to see if the TPMS issue appears. If it does happen I will install a 10 picoFarad capacitor across the leads on the drivers side rear marker lamp. That is the one closest to the TPMS receiver and likely has the most effect on the readings. Will then drive for a while to see if issue reoccurs. If the issue happens again I will put a cap on the passenger side rear marker lamp and test again. If no improvement will do the drivers front then finally the passenger front. There is little reason to do more than needed and the caps are dirt cheap but I prefer to not make more changes to my car than necessary.
If i do not see the issue like most, obviously I will not be any help for others but if I do, perhaps there can be a solution.
That sounds very generous of you to share you experience with us. We will be looking forward to more on this!
Thank you,
Rich
Been thinking about this for a couple of days now. Here is my plan. I hope to get the JW side marker lamps installed today (6/8/2020). I will then just drive it for a few days to see if the TPMS issue appears. If it does happen I will install a 10 picoFarad capacitor across the leads on the drivers side rear marker lamp. That is the one closest to the TPMS receiver and likely has the most effect on the readings. Will then drive for a while to see if issue reoccurs. If the issue happens again I will put a cap on the passenger side rear marker lamp and test again. If no improvement will do the drivers front then finally the passenger front. There is little reason to do more than needed and the caps are dirt cheap but I prefer to not make more changes to my car than necessary.
If i do not see the issue like most, obviously I will not be any help for others but if I do, perhaps there can be a solution.
Good idea. If you have the problem and cap fixes it, then it'll be an easy fix that everyone can do to correct the problem.
Why aren't you using a ferrite core to suppress the EMI, sounds to me like that is whats causing the issue, I see the idea of a cap but I'll leave that one alone.
All LEDs create some degree of EMI, even if negligible - I work for Boeing and there are certs (DoC) we need for certain types of designs as they can cause interference with comm equipment in the MHz range.
Its probably the LED type used that is causing excessive noise or spikes in noise that are interfering with the TPMS signals. I have the LED sidemarkers on my C6Z but never heard or seen issues of those in the C6, again maybe the LED type used or overall design doesn't have RFI/EMI suppression accounted for. Here is an example of noise generated by LEDs:
The OEM TPMS appear to work at 433mHZ so the following should work (and they are clip on) - There are many other ways to solve this including soldering ferrite beads but I think you guys get the idea
Why aren't you using a ferrite core to suppress the EMI, sounds to me like that is whats causing the issue . . .
An excellent idea.
My Z06 is in the shop (hit a deer) so I cannot check. Will someone please put a caliper on the group of wires leading to the connector to which the marker is attached?
My guess is a 3.5mm(0.14inch) inner diameter ferrite core choke will do the job, but I do not trust my memory. 3.5mm is the diameter of the average computer mouse cord.
Why aren't you using a ferrite core to suppress the EMI, sounds to me like that is whats causing the issue, I see the idea of a cap but I'll leave that one alone.
All LEDs create some degree of EMI, even if negligible - I work for Boeing and there are certs (DoC) we need for certain types of designs as they can cause interference with comm equipment in the MHz range.
Its probably the LED type used that is causing excessive noise or spikes in noise that are interfering with the TPMS signals. I have the LED sidemarkers on my C6Z but never heard or seen issues of those in the C6, again maybe the LED type used or overall design doesn't have RFI/EMI suppression accounted for. Here is an example of noise generated by LEDs:
The OEM TPMS appear to work at 433mHZ so the following should work (and they are clip on) - There are many other ways to solve this including soldering ferrite beads but I think you guys get the idea
Sorry guys I dont have a C7 otherwise I'd be out mucking with it to see what I find out instead of posting
Since I would prefer to not violate the wiring on my car, if the problem shows up, I will put the ferrite chokes on before soldering in the capacitors. It is a bit more money but non invasive. Thanks for the suggestion and I should have thought of it also as I have a couple of those on some control wires on my ham radio station.
Yes. Got to be freeway speeds though. Watch your tire pressures. The rears will go up a few psi after 15-20 minutes, but the fronts won’t change. Eventually the system times out waiting for an update from the fronts (or maybe just the right front) and triggers the error.
If you throw some stop lights in this drive, it will probably not trigger the error. In my trial and error testing, my front tire pressures would not update as fast as the rear, but they still hung in there if I only drove on city streets with the lights on.
Tomorrow I have to head over to Abels Chebby for Manuel trans and diff flush. There will be allot of highway driving so we will see. Thanks.
If the cap doesnt work we can try a half bridge rectifier connected to a zener diode
[QUOTE=lostsoul;1601644326]Tomorrow I have to head over to Abels Chebby for Manuel trans and diff flush. There will be allot of highway driving so we will see. Thanks.
