Another TPMS problem/question

[mpgscott]

Hi,

So with my GSA swap over I got a set of spoked wheels and had them checked for true and overhauled. A new set of TPMS sensors were bought from same place on eBay as few years back. Coded in the numbers with the GS911 and tried the wake up tool but recall last time it didn’t work.

So got the new tyres on today and took it out a run and no sensors

Am I forgetting something like pulling the plastic for battery to switch on, I don’t recall any such thing.

All needed in past was code in second set on GS911 and that was it. So did a few miles and nothing..

 

[Mistacat]

Codes look to be written in ok.
I usually have more success with the wake up tool but have to have a newish quality battery in it, I use Duracell as some others do not seem to have enough power.
A short ride can wake them up but not always.
There is not a plastic strip to remove as they are sealed units.

 

[mpgscott]

Codes look to be written in ok.
I usually have more success with the wake up tool but have to have a newish quality battery in it, I use Duracell as some others do not seem to have enough power.
A short ride can wake them up but not always.
There is not a plastic strip to remove as they are sealed units.

Today I tried activating the known good alloy wheels TPMs with the wake up tool and nothing showing on the dash. So ordered a new wake up tool to check worth it for a tenner. Tried new battery no difference but I question now whether these are Duracell or copies. They are showing 9.3v on DMM so seem fine but as you suggest maybe not when under load.

 

[botus]

I tried writing to the second set - never got it to function... whilst I hear people do it and get it to work - never happened for me - then I came to the conclusion it has four because its from a car

maybe there is a trick to get it to behave - like maybe ALL four need to be awake at the time you set things up ?

my car will show no readings on any sensor if one of the four are duplicated (or one has failed) - so 3 good, one duplicate = no readings

Never tried TPMS using GS911, only done it with motoscan - so those instruction on the tyre post may not be possible using GS911 as it tries to hand hold rather than let you take control

 

[mpgscott]

I tried writing to the second set - never got it to function... whilst I hear people do it and get it to work - never happened for me - then I came to the conclusion it has four because its from a car

maybe there is a trick to get it to behave - like maybe ALL four need to be awake at the time you set things up ?

my car will show no readings on any sensor if one of the four are duplicated (or one has failed) - so 3 good, one duplicate = no readings

Never tried TPMS using GS911, only done it with motoscan - so those instruction on the tyre post may not be possible using GS911 as it tries to hand hold rather than let you take control

Well went out and covered around 70 miles in pi@hing rain, still nothing error triangle on dash.

So you thinking try coding these new ones into bank A as opposed to how I have them on B at the moment?

Leave bank B blank or all the 999999.

I can try when I get the wake up tool.

Maybe someone who’s done it on GS911 will be able to chip in with thoughts.

I definetly did this a few years back, but that was with the old yellow usb only gs911, this WiFi crap is a pain and as you say trying to be too clever. Doesn’t help that it’s all cloud based as every bloody thing these days, so without tinternet it’s a pain. Where I store the bike I’ve no internet.

Can’t see what difference it would make.

Thanks for the thoughts much appreciated..

 

[GSian]

It normally works with input numbers for me. But do you not fit 1 wheel at a time and take it for a ride? Otherwise confuses system, not knowing which is front and which is back, so it doesn't do either.

Not 100% just a suggestion based upon what I've heard before.

 

[Mistacat]

I use 2 sets of wheels with codes written to set A and set B as you have.
Winter and summer wheels I just swap them over and they work.
If I replace a sensor I delete the relevant code with the GS911 then use the wake up tool , the code is then automatically written into the blank space ( checked with the GS911).
I have done numerous other bikes this way.
I had no success prior to the wake up tool becoming available ,even making up a jig to spin them up in the lathe to try to wake them up.

 

[botus]

I use 2 sets of wheels with codes written to set A and set B as you have.
Winter and summer wheels I just swap them over and they work.
If I replace a sensor I delete the relevant code with the GS911 then use the wake up tool , the code is then automatically written into the blank space ( checked with the GS911).
I have done numerous other bikes this way.
I had no success prior to the wake up tool becoming available ,even making up a jig to spin them up in the lathe to try to wake them up.

so - could one not just delete the codes and ride the bike - is that not the same as your are doing ?

 

[landmarkjohn]

Have a look at this thread and my post #20 may give you some pointers.

It’s not a 5 minute job and good luck.

 

[botus]

It normally works with input numbers for me. But do you not fit 1 wheel at a time and take it for a ride? Otherwise confuses system, not knowing which is front and which is back, so it doesn't do either.

Not 100% just a suggestion based upon what I've heard before.

yes the fix here is to wake the sensor whilst its not on the bike you are working on - so the only sensor the bike gets to see is the new one as the other two are asleep

I have to admit the ONLY time I ever tired to wake a BM sensor "off the bike" was using multiple BMs that all had TPMS - But I do not believe anything on that bike is part of the wake up. You can def tape on the back wheel of another bike and run on its centre stand it has to get over 35mph and 1/4 mile usually isn't enough - so 40 mph and 2 miles to be safe.

Its just about impossible to get these days but Autel used to make car TMPS programming USB pad and you could add one of their aftermarket sensors set up as a BMW Bike one - about 4 years ago they updated all their stuff to work with BMW bikes - (but I never got the Autel pad to wake a OEM BMW sensor)

that said any decent car tyre place ought to be able to wake the sensor and get you the code to type in...

here's the old motoscan window of play

 

[mpgscott]

God, I don’t know if my new sensors are not working or if it’s the bike.

In order to test these wake up tools, if I take an old wheel that I know works and is coded into the bike as Set A, if I switch on the ignition and have it on the TPMs pressure window on the dash if I wake the old wheel up with said wake up tool by pointing at the valve then a value should appear on screen? Am I correct in thinking this?

Thanks
Mark

 

[botus]

if the old code is in the bike's brain and the sensor still works (as one of the two that were working) - if its near the bike and you wake the sensor should pop straight up on the cluster

 

[Slipperyeel]

Much as per Mistacat's post above (#7).

When I did mine, I didn't enter any codes manually. I woke them up using the tool, using the gs911 to pick it up and add it.

Sounds like the wake-up tool is the first step. Incredibly cheap piece of kit, for a change!

Sent from my SM-S908B using Tapatalk

 

[mpgscott]

Much as per Mistacat's post above (#7).

When I did mine, I didn't enter any codes manually. I woke them up using the tool, using the gs911 to pick it up and add it.

Sounds like the wake-up tool is the first step. Incredibly cheap piece of kit, for a change!

Sent from my SM-S908B using Tapatalk

Yep, looks like the sensors are knackered. Nae good as tyres are now on the rims..

Wake up tool is doing its thing with the old wheels..

GS911 is the red wifi, seems to work offline fine as i went through clearing slots and then learnt the old original wheel all worked fine. Just the new ones aint playing ball. Going to try the pressure removal and then inflate and see if it picks up the sensor.

 

[botus]

I had a fake still works - that woke by shaking - don't remember if the wake up tool woke it up

now you are brave enough to delete things, ride the bike don't turn the key off or use kill switch and see if they woke up by riding

 

[Slipperyeel]

Yep, looks like the sensors are knackered. Nae good as tyres are now on the rims..

Wake up tool is doing its thing with the old wheels..

GS911 is the red wifi, seems to work offline fine as i went through clearing slots and then learnt the old original wheel all worked fine. Just the new ones aint playing ball. Going to try the pressure removal and then inflate and see if it picks up the sensor.

It may all work out

I was thinking earlier reading the posts, that if you deleted the set of codes you entered and tried to start again? Maybe you did that already? Apologies if so!

As an aside, I got into changing my own tyres (tricky at first, now all sorted!). But yea, total pain having to get the tyres removed, put back on etc etc.

I guess, if the next attempts don't work, get the tyres off and get it all working using the wake-up tool. Then tyres back on...

Sent from my SM-S908B using Tapatalk

 

[mpgscott]

Yep, thanks good suggestion and I did give that a go today.

I’m just wondering if the new sensors just aren’t getting the wake up call.

The old ones take a bit of fiddling with the placement of the wake up tool but gets there. The new ones just nothing.

I’m going to try the pressure removal and pump them up and use the learning mode active during it on GS911.

Will see how that goes.

Could try the suggestion of setting up in learning mode and ride it. But be a pain trying to sort the laptop out to go a ride. Plus knowing my luck the front and back will waken and confuse it.

Could run back wheel on centre stand but just hate doing that as it sounds awful on the drive.

Cheers for all the suggestions, greatly appreciated.

 

[Mistacat]

I saw a mention earlier of ( point the wake up tool at the valve) .
Hold the antenna of the wake up tool against the sidewall of the tyre as close to the sensor as possible.
The output of these wake up tools is quite weak, if you have access to an oscilloscope you can see how the signal drops off at a short range.

 

[mpgscott]

I saw a mention earlier of ( point the wake up tool at the valve) .
Hold the antenna of the wake up tool against the sidewall of the tyre as close to the sensor as possible.
The output of these wake up tools is quite weak, if you have access to an oscilloscope you can see how the signal drops off at a short range.

Thanks, yes it’s pretty hit or miss..

I monitored the voltage drop across the pp3 battery when you press the button and it’s falling from 9.36v to 8.44v when transmitting.

So I cabled up a car battery to hopefully not let it drop so much.

I meant to check on scope last week when in the office and forgot.

Will try again later..

 

[mpgscott]

Had another go and I’m now pretty certain it’s the sensors.

I found another set I must of bought a while back, these coded in straight away with both my wake up tools.

Bloody sensors..

Wheels are back off the bike and will take them to get bead broken.

If you have the new road 6 tyres they are a bas&ard to break the bead. I tried loads and it wasn’t happening.

All my good work refurbing the wheels, this is not what I wanted to be doing