GS-911 User Forum

General Category => General Discussion => Topic started by: StephanT on May 20, 2013, 09:53:57 AM

Title: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: StephanT on May 20, 2013, 09:53:57 AM
I would like to know whether any of you own any tyre pressure wake-up tools, and if so which one... to wake these so you can learn them is a PITA, and although you can buy a BMW device, the new one will set you back some $600!

So I'm looking to see whether there are any generic devices that some of you are using.. so we could contact the manufacturer and see whether they would be willing to add support for the BMW TPMS sensors... if not, we will just have to make one... (but we'd rather focus our energy on the NEW GS-911  ;D

So, if you're using one, give us feedback ito:

Alternatively, if you're a good RF/embedded engineer.. looking for a project...send me a PM ;)

best,
Stephan
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on May 20, 2013, 10:29:53 AM
I have a home made one.  Rather crued however.  Just a plastic disk on an electric motor that the attached TPM get attached to.  Spins like hell but wakes them up 9 times out of 10! Basically amounts to riding your bike at about 500km/h.  ;D ;D
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: StephanT on May 20, 2013, 03:53:12 PM
 ;D

but that assumes that the sensor is not in the wheel yet...  and in that case, most of the new sensors come with the sensor number printed on them as a barcode... that you can just enter that number into the RDC control unit, without having to wake the TPMS sensor...

see the writeup on the techinfo section on our hexcode website:
 http://www.hexcode.co.za/products/gs-911/procedures/rdc

best,
Stephan
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on May 21, 2013, 06:22:12 AM
Yip, the sensor is out of the wheel but in close proximity to the bike.  Usually only use it when I have replaced the TPM batteries, which I do often.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on August 22, 2013, 07:08:03 AM
Anyone know what frequency the TPMs operate at?

I found this and wondered whether it would be compatible.  It claims to wake all existing 125KHz sensors.

http://www.ebay.ca/itm/Autel-TS101-Universal-TPMS-Sensor-Activation-Tool-/121052081709?pt=Motors_Automotive_Tools&hash=item1c2f442e2d (http://www.ebay.ca/itm/Autel-TS101-Universal-TPMS-Sensor-Activation-Tool-/121052081709?pt=Motors_Automotive_Tools&hash=item1c2f442e2d)

(http://www.eagletools.net/images/items/AUTS101.JPG)
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Inspector Gadget on August 22, 2013, 08:11:26 PM
I believe it to be around the same frequency as the alarm, so that would be around 440 Mhz.
(433,97 MHz to be exact)
As RDC & Alarm share the same (CAN-bus) module.

But I could be wrong!

See also the document on this link;
http://www.auteltech.nl/downloadshop.php?id=180
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on August 22, 2013, 09:26:38 PM
See also the document on this link;
http://www.auteltech.nl/downloadshop.php?id=180

Please, don't get me wrong.

I was merely using the link for the spec and graphic.  Do not intend to buy from them at all.

The TS401 from Autel does appear to support the BMW sensor.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Inspector Gadget on August 22, 2013, 11:45:00 PM
Please, don't get me wrong.

I was merely using the link for the spec and graphic.  Do not intend to buy from them at all.

I wasn't, but noted. ;)
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on August 23, 2013, 09:41:53 PM
OK,so can that idea!!

TS-401 will cost around ZAR18,983.13! :o
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Inspector Gadget on August 23, 2013, 11:08:36 PM
Wow, that is terrible mark-up price!  :o

In the Netherlands the TS-401 is 269 euro's, about 2,752.08 ZAR.
Including VAT.  ;)

http://www.auteltech.nl/resetters/254/MaxiTPMS-TS401

Maybe you have relatives in the euro-countries and perhaps they can order it for you?
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on August 24, 2013, 05:44:13 AM
Yes, going the Chinese route it's about $220.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: StephanT on August 27, 2013, 11:29:57 AM
Pls don't go the Chinese route... they are more than likely ripoffs of the original, which means copyright and all other IP infringements...  Let's just no go there on this forum...  Please...
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: StephanT on August 27, 2013, 11:37:38 AM
the differ as per country requirements, and respond with a UHF signal at either 315MHz or 433MHz (most common). The TPMS can be externally excited using a 125kHz Low Frequency signal  - however this signal is modulated... and it's no guarantee that a BMW car tool will wake (or read) a bike TPMS...
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on August 27, 2013, 01:38:29 PM
Pls don't go the Chinese route... they are more than likely ripoffs of the original, which means copyright and all other IP infringements...  Let's just no go there on this forum...  Please...

Nope, as per my previous post, I have no intention of doing so.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: panason1c on September 15, 2017, 05:04:52 PM
This one works on my K1300s via a GS911, it activated a spare sensor that I have and reported the id number via my gs911 to my laptop. ......cheap at £13

http://www.ebay.co.uk/itm/EL-50448-TPMS-Activation-Tire-Pressure-Monitor-Sensor-Battery-for-SPX-GM-Car/332311410151?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Inspector Gadget on September 15, 2017, 05:44:47 PM
I ended up buying this one and works excellent;
http://www.gs-911.be/webshop/index.php?route=product/product&path=60&product_id=60 (http://www.gs-911.be/webshop/index.php?route=product/product&path=60&product_id=60)
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: BALVIAMBE on September 23, 2017, 05:44:22 PM
hi,
buy ts 401 which reads the id and show you if thw=e sensor is ok or damage.
 i am using and it woks the best for bmw r1200gs on my bike.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: gs-riders on October 03, 2017, 03:29:11 PM
Hi, how did you get the TS401 to read the sensor on a R1200gs? In mine it only has cars in the menu and can't get it to read the sensors
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: BALVIAMBE on October 03, 2017, 03:42:05 PM
Hi everyone .
bmw r1200gs 2016 model.
job done by using autel ts 401.
upgrade to new firmware.
use either vehicle selection on ts 401.

US/CN Saturn Astra 2010/01-2010/12 315MHz
US/CN Saturn Astra 2008/01-2009/12 433MHz
US/CN Saturn Astra 2010/01-2010/12 433MHz

it took 3 sec to read id and all info from the sensor.
so u know whether the sensor is ok or not.
THE REST IS DONE BY GS911 WIFI.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on October 03, 2017, 04:03:24 PM
Using the Ateq VT30, you select "BMW Motorcycle"  ;D
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: gs-riders on October 04, 2017, 02:11:26 PM
Thanks for your reply Balviambe, think I must have bought dud Chinese senors bought 3 different ones from 2 different sellers and can't get any of them to work. Using the Saturn Astra on my 401, I can read the genuine BMW sensors no problem but it just keeps saying "Senor trigged but cannot be known" on my TS401 with the cheap eBay ones.

Might buy some Autel MX-Senors and see if I can clone my genuine ones so I can have two sets of wheels without all the headaches.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: BALVIAMBE on October 04, 2017, 02:42:45 PM
HI
I ORDERED THE SENSOR FROM EBAY Chinese senors AND HAD TO REPLACE BOTH THE BATTERIES AND THEY READ PERFECT.
MY FRIEND HAS R1200 GSA WITH ORIGINAL SENSOR AND ALSO THOSE READ IN 3 SEC'S
PUT THE TS 401 IN LINE WITH VALVE WHERE THE WHEEL RIM ENDS AND TIRE STARTS.
IT WON'T READ FROM VALVE STEM ON TOP. PUT IT ON SIDE WALL OF TIRE.
USE
 US/CN Saturn Astra 2008/01-2009/12 433MHz
US/CN Saturn Astra 2010/01-2010/12 433MHz
BOTH WORKED FOR R1200GS 2016 MODEL.

DID U UPDATE THE TOOL FOR LATEST FIRMWARE. I THINK IT IS V5
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: gs-riders on October 04, 2017, 03:41:06 PM
Hi,

I take it your Chinese sensors were not reading properly either so you decided to change the batteries and now they are working fine?

I updated my 401 yesterday so I think I have the most recent version? It says on the tool information page,

Burn date 05/26/17
S/W Ver 3.12,
H/W Ver 3.0,
Sensor Ver 4.07.06.
 
Should I have a different version?  Sorry for all the questions.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: BALVIAMBE on October 04, 2017, 03:55:55 PM

this sensor lie in stores so battries die.
Boss just change the batteries they will work
cr2032 batteries.
open the black part of the sensor.
the batteries are welded with solder on both sides up and down. so be careful while opening.
check youtube how to change batteries of sensor the videos are they.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on October 04, 2017, 04:10:39 PM
check youtube how to change batteries of sensor the videos are they.

Be careful following the youtube videos!  They are at best real "Heath Robinson" attempts.

To do this successfully requires the epoxy/resin to be removed around the battery, the battery unsoldered and replaced with the correct one like this:

(https://images-na.ssl-images-amazon.com/images/I/61Ccx7FEBZL._SX522_.jpg)

Attempting to remove the battery by other methods often results in the circuit board copper tracks being damages and broken.  I often have clients walking in "hat in hand", asking to repair their buggered circuit boards.

Do yourself a favour and do the job properly the first time.  You will have at least 2 more years of hassle free monitoring before the batteries require changing again.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: BALVIAMBE on October 04, 2017, 04:24:17 PM
this guy damaged the sensor by removing both clams of battery from sensor itself.
i managed to solder the first battery which came out with bottom plate now it is working fine.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on October 04, 2017, 04:54:13 PM
this guy damaged the sensor by removing both clams of battery from sensor itself.
i managed to solder the first battery which came out with bottom plate now it is working fine.

You cannot normally solder on the conventional CR2032.  If you do manage to get it right, the heat affects the battery and effectively destroys it.  It will possibly only last a few weeks before it is dead as well.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: gs-riders on October 04, 2017, 07:02:30 PM
Just wanted to confirm the Chinese sensors I bought from eBay did come with dead batteries in them. I opened them up and changed the batteries using standard Duracell 2032 battery and the TS401 read them within 5 seconds.

Couldn't have done this without the information on this page, so thanks one and all.....
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on October 04, 2017, 08:00:23 PM
Just wanted to confirm the Chinese sensors I bought from eBay did come with dead batteries in them. I opened them up and changed the batteries using standard Duracell 2032 battery and the TS401 read them within 5 seconds.

Couldn't have done this without the information on this page, so thanks one and all.....

As a matter of interest.  How did you secure the new battery?
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: gs-riders on October 04, 2017, 08:39:33 PM
I cut out just enough resin to get the battery out to make sure it would still be a tight fit. I then bent the top tap right down so when the new battery went in it was making contact, I then used a tiny bit of tape on it to keep the contact. I checked it was ok and working by using my Ts401 before using a hot glue gun to reseal it.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Skim on October 10, 2017, 11:42:02 AM
check youtube how to change batteries of sensor the videos are they.

Be careful following the youtube videos!  They are at best real "Heath Robinson" attempts.

To do this successfully requires the epoxy/resin to be removed around the battery, the battery unsoldered and replaced with the correct one like this:

(https://images-na.ssl-images-amazon.com/images/I/61Ccx7FEBZL._SX522_.jpg)

Attempting to remove the battery by other methods often results in the circuit board copper tracks being damages and broken.  I often have clients walking in "hat in hand", asking to repair their buggered circuit boards.

Do yourself a favour and do the job properly the first time.  You will have at least 2 more years of hassle free monitoring before the batteries require changing again.

Hi Jughead,

Pse help... I also attempted to replace with standard 2032 battery. However, after a few hundred Km's it failed. Have not removed the unit  again, but I suspect the centrifugal force dislodged the contacts. Where do you get the one pictured? Part number?

Regards
Skim
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on October 10, 2017, 03:03:09 PM
Hi Skim

Most electronic component suppliers stock them.  No idea of the part number.  If you google "cr2032 solder" and go to Images you will see all the variations.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: peter_m on October 10, 2017, 07:54:09 PM
hi skim   if uk based then http://www.smallbattery.company.org.uk/sbc_tagged_lithium_coincell_catalogue.htm has what you need ( no connection) google for 2032 solder tag or tagged 2032
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Skim on October 10, 2017, 07:59:51 PM
Jughead and Peter_m, thank you. Will Google and see what info I can get.
Regards
Skim
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on August 31, 2018, 09:27:27 PM
Wish me luck, I am going to do thje Chinese TPMS and also change to a fresh battery before I install.  This is easy for me because i have my own tire changing and balancing system in my garage
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on September 02, 2018, 03:25:59 PM
issue: My rear TMPS K1600 2012 is reading 7-8psi low.  Actual tire pressure is 40-41psi, TMS reads 32-33psi. I suspect the Rear TPMS is bad.  I tried to do the rapid decompression of the rear tire a few times.  The Canbus responds as designed with a red triangle and the engine going into "LIMP" mode so I know the computer and TPMS are talking.  For some reason the Rear TPMS became un-calibrated.  I suspect it is toasted.  My BMW dealer said they have issues with many of the TPMS sensors doing this.  They told me to try the rapid decompression a  few times and that sometimes wakes the TPMS up and calibrates it.  A new BMW OEM TPMS is $220usd.  Another kidney donation! 

This is what I will try as my next step to troubleshoot the 7-8psi discrepancy in my rear k160 TPMS.  1. I purchased a : https://www.amazon.com/gp/product/B074MWMNL5/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1  EL-50448 TPMS tool for $16 from Amazon.  2. I also purchased two new CR2032 batteries with wires : https://www.amazon.com/gp/product/B00XYSW3R8/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1  about $12 total. 3. I purchased two new TPMS sensors from ....YES China:  https://www.ebay.com/itm/8532732-Tire-Pressure-Monitoring-Sensor-New-For-Fits-BMW-Genuine-High-Quality/253672435640?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649  8532732 Tire Pressure Monitoring Sensor New For Fits BMW Genuine High Quality  $25 each.  free freight

I read on a previous blog that these new TPMS from China work on most BMW's 2012 to current year but that the battery they come with may be old...thus the new CR2032 battery with wires.  You can not solder the lithium battery as they get hot and it ruins them.  I do not like the idea of using a holder or just the existing metal prongs with hot glue to hold the battery in place.  Regular riding it would be find but once you hit some speed bumps or potholes at 80mph i think the battery would dislodge.  I plan to remove the glue in the new Chinese TPMS , TPMS, dig out the old battery and solder in new batteries using the wires directly to the terminals.  The next battery change in 3-5 years would be a really fast operation.  Since the CR2032 has a wire I will just epoxy the new battery an inch away from the new TPMS.  During a future changeout I just break the glue and put in a new battery with epoxy...should take about 5 minutes each. 

Why the EL-50448: The chinese TPMS do not seem to have a serial number on them.  This would read the TPMS during wake up mode and give the serial number for my GS911 input.  https://www.hexcode.co.za/products/gs-911/procedures/rdc  The EL-50448 will also be able to test the Chinese battery and I may not even need to use the new wired CR2032 batteries this time around.  I will keep ya all posted
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: BALVIAMBE on September 03, 2018, 06:06:13 AM
Hi,
i did the soldering on the battery and it is working fine already 2 years now. bad reading can be caused by battery also. just change it bro and all be fine. good luck.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on September 03, 2018, 06:43:43 AM
@e7navy1999

Make sure that the TPM sensor you order from China operates at the correct frequency.  It needs to be one that communicates at 433MHz.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on September 03, 2018, 03:36:11 PM
BALVIAMBE, Thanks for the bad battery tip.  I was going to try that first, The EL-50448 is suppose to be able to test the battery remotely.  I will try that out today.  The Chinese TPMS for $25 is suppose to be 433mhz. 
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: BALVIAMBE on September 04, 2018, 07:14:06 AM
hi,
tpms should be 433 mhz that is it change battery bro all will work fine.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: wmdowdy on September 07, 2018, 02:55:12 PM
i have the ATEQ VT-31, paid $119 for it and it wakes my sensors up instandly and displays the sensor number and the tire pressure. Works on my Audi Q7 also
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on September 09, 2018, 07:16:37 PM
UPDATE Sept: I opened up the rear tired by just breaking one side of the bead.  Form there I was able to step on the tire and crush it done to make for plenty of room to remove the TPMS.  The old battery measured 2.67 DCV, The new battery measured 3.47 volts.  I followed the "de-glue" procedure mentioned earlier by a poster on this same link.  (took about 30 minutes) I soldered in the Black wire to negative (bottom tab) and red to positive (upper tab).  I did NOT fill in the cavity of the old TPMS with anything...just left it open.  Maybe I should have to help keep moisture out? Anyways I have to put on a new rear tire in about 1000 more miles so can do it then. The existing BMW TPMS terminal clips are extremely sturdy and solder very well.  The next battery change out will be very simple...maybe a 5 minute job at most. The new battery has two 2" long leads (+red/black-).  With ignition key on and tire not mounted but nearby the bike: I filled the tire with 40psi, proceeded with a rapid depressurization which "woke-up" the rear TPMS sensor then proceeded to fill up to 40 PSI.  The display ready 44PSI, Tire read 40PSI.  Better then the 8PSI difference I originally had but still not perfect.  Good enough?  I will run this pressure for a few weeks and see if it calibrates over time.  If it does not I will install the Chinese TPMS once it arrives next month during my tire change-out.  One odd issue: the CR032 is thinner then the OEM battery that is labeled 11Y8Ou,  same voltage
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on September 30, 2018, 05:56:07 PM
 I Phoned a local battery supply shop.  The CR2032 is exactly 1/2 the thinkness of the OEM BMW TPMS battery.  Part number listed previous post.  They recommend me to double up the CR2032 so as to get 3volts. The combined batteries should last just as long as the OEm battery.  The German battery is not available in the USA and they said appears to be a custom application battery made just for BMW.  I decided to just use a single battery and replace it every other tire change.   I will replace the front battery next month during a tire replacement as well
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on October 13, 2018, 07:21:19 PM
Awe found it.  The TPMS Battery is actually a CR2050HR.  Ebay: https://www.ebay.com/itm/4-PCS-Maxell-CR2050HR-Lithium-Buttom-Battery-3V-Coin-Cell-Tab-welded/182085577865?epid=1065216573&hash=item2a65256c89:g:HAAAAOSwJQdXCAC-:rk:2:pf:0.  About $5 each. The CR2030 will work but maybe not for many years. 
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Inspector Gadget on October 18, 2018, 08:47:37 PM
Likely being the CR2032HR variant (=Heat Resistant, temperature-range from -40 degrees Celsius to +125 degrees Celsius)

The CR2032HR's thickness (height) is 3.2mm versus the CR2050HR 5.0mm
So a difference is 1.8mm, which is not that much difference, as there is in that respect "plenty room" within the BMW TPM Sensor to mount them.

The bigger difference is the mAh-values, meaning how much current it can maximum provide measured per hour, before it drops to 2.0 volts (the state at which it should be considered "empty")

The CR2032HR ia 200mAh, whilst the CR2050HR is 350mAh.
(but the CR2032HR has a higher acceleration Resistance of maximum 3300 G's versus 2000G's, which is, according to the manufacturers equivalent to acceleration when driving at 300km/h & using a 17-inch wheel)

Bottom-line: the CR2050HR should a fine replacement (too) for a dead battery and probably will last a bit longer versus the CR2032HR.

Getting a slight difference in reading the actual pressure often comes down to what tool you are using as a reference to compare the measurements with.
El cheapo tyre-pressure readers often give very slanted results.
Whilst investment in a good digital or analoge reader often give more accurate results.

TPM sensors, including BMW's, are so-called temperature-compensated.
Meaning, the pressure displayed on your dashboard is the pressure as if the tire is at 20 degrees Celsius.
Which a tire seldom is, hence also the reason the pressure does increase when the tyre does get warm.
Therefore you should always measure the pressure before riding and preferably pressurise your tyres a wee bit above but never below the desired pressure.
Where it really comes down to your personal preferences, and your brand of current tyres, but not excluding what the motorcycle manufacturer states in the user manual about tyre-pressures.
I like harder tyres as the bikes rolls & corners better for me, compared to what BMW dictates in my user manual.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on October 18, 2018, 08:58:18 PM
Well said Inspector Gadget.  I did order in some 2050's.  Expect delivery tomorrow.  I currently have a 2032 in the front tire and a 2032 in the rear but ....I did not glue it secure enough so it spun loose after 50 miles at 90mph.  My bad as I epoxied it to the rim next to the TPMS module.  The front tire I glued it inside the TMPS module so the centrifugal forces will hold into the TPMS pocket.  Breaking the old glue out of the TPMS module is a piece of cake.  The rear took my about 40 minutes because it was I first attempt and I had no vice to hold it steady.  The front TMPS glue removal took about 3 minutes but also because I had a sturdy vice to grab it. 
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on October 20, 2018, 11:57:33 PM
I installed the CR2050 in the rear tire.  I did discover an interesting issue.  When your console shows RED color rear tire (...I assume also a RED front) where the pressure number is place...you will absolutly need the GS911 to clear your fault codes before the sensor will wake up.  I tried depressurization and my wake up tool, neither worked until I used the GS911 to clear the fault.  Once I cleared the fault code the TPMS woke up and it read the correct pressure.  After all this effort now the TMPS reads dead on.  PERFECT 40PSI.  So the CR2032 worked but the pressure was still off as per my previous post.  With the CR2050 PERFECT with al three gauges as well as the console.  SCORE.   
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Jughead on October 23, 2018, 02:44:28 PM
I have had a few pressure monitors that read way more than the actual pressure.  What I then do is to deflate the tyre completely (i.e. Remove the valve core).  Let it sit for a few minutes and then use the wake-up tool to wake it up.  Pressure reading is then "0".  Reinflate the tyre and it usually then reads spot-on.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Inspector Gadget on October 25, 2018, 03:41:08 PM
Good finds, will be helpful for future readers of this thread!

Also thank you for your persistence!
Kudos for that!

I would take a (very) wild guess that it possible also depends to a certain extend on which bike-model (and the RDC/Alarm-combined unit) how it behaves with reading the sensor before clearing the fault-code(s).
But on the other hand I wouldn't be too much surprised if this is "normal" behaviour under these circumstances, as undoubtedly BMW expects you to go to the BMW repair shop to get the sensor(s) replaced, learned-in and any errors in the "logs" to be cleared. And pay a hefty bill before you can step outside...

Also a Thank You to @Jughead!!

I do wonder if this "auto-zeroing" is done by the sensor itself or the RDC/Alarm-unit on the bike?
It does make sense to me, to "compensate" for barometric variations around the world? Perhaps?

Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on October 25, 2018, 04:38:32 PM
The calibration function would be handy.  I am at 5000ft.  The bike is a K1600gtl 2012, 62k miles.  I did purchase the Chinese TPMS units listed on ebay and now have them but there was no need to install them. They are about $25 bucks each free freight.    They look identical to the BMW TPMS and even have a code on them.   Anyway it has been a week and all it well.  I am glad that I bought the GS911.  It has come in handy 3 time this past year.  Once for oil change code, once for electrical fault when my PIS flood lamp was hit by a rock and the third time to reset the TPMS fault.  It already paid for itself!  Bottom line: I gratefully thank GS911 for helping me save my kidney and liver from being sold off to pay the hefty BMW fees!
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Inspector Gadget on October 25, 2018, 08:06:12 PM
I live at 3.7 meters (little over 12 feet) above sea-level (The Netherlands, the flat-pancake country) according to survey-details
So I can imagine with such huge differences the TPMS will have some substantial deviation on the "accuracy" of measurement.
(see also for example: https://www.engineeringtoolbox.com/air-altitude-pressure-d_462.html if it has your further interests)

Excellent, glad you like the GS911, I love it too!
I bought my GS911 back in 2011 and helped out many mates & sometimes even complete strangers.
With the amount of money I saved on "BMW bills" I can only imagine.  ;D
But then I'm a firm believer that when you help others and do good, you get good or help in this live and beyond.

I also believe that Jughead's findings should be added to the TPMS info-page for future reference.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Larsen3000 on February 09, 2019, 08:02:18 PM
I was able to add new wheels with TPMS sensors to my K1600GT with this wake up tool. Worked perfectly. Seems to operate at the 433 MHz frequency.
http://www.ebay.co.uk/itm/EL-50448-TPMS-Activation-Tire-Pressure-Monitor-Sensor-Battery-for-SPX-GM-Car/332311410151?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on February 09, 2019, 08:18:20 PM
can you explain how you got the EL-50448 to work?  I bought one but it does not seem to do anything..a red light comes on when i press the button is all.  I used my GS911 and it works great but most riders can not afford the GS911
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on February 09, 2019, 08:21:55 PM
Update on the 2050 TPMS battery: During the cold winter months the 2050 Battery does not seem to works so great.  It takes about 20 miles before it wakes up when the weather is below 22 degrees F.  The 2030 battery seems to work like the OEM but I worry it is much thinner and will not last nearly as long
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Larsen3000 on February 09, 2019, 09:04:20 PM
E7navy1999 I did not have any problems getting it to work. Placed right against the tire near tpms then pressed button. I think the rear tire I actually  placed it on the valve stem and pushed the button. My GS-911 read it instantly as soon the tpms activated. I was able to learn both wheel in less than a minute. I was shocked. Went very well.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on February 09, 2019, 09:12:23 PM
Thanks, did you have the key in the on position I assume?  I will try mine tonight again.  I like to check my tire pressure before I go on a ride and the way BMW has it you have to go on a short ride before you can read the tire pressure...sort of backwards
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Larsen3000 on February 09, 2019, 10:09:57 PM
eNavy1999 Yes key was on. Switch on bars in off position. I did not have any problems. I usually just set the pressure with my tire gauge anyway. It usually is pretty close when you first start out to what set it. But as tires warm it will increase a little. I guess the real benefit of TPMS is if you pickup a nail or something it will warn you as soon as the pressure drops too low. Nice safety feature.. My GS did this once when I was leaving for work one morning. Saved me a roadside repair. I just put the bike back up and fixed it that evening.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on February 09, 2019, 11:37:11 PM
Thanks Larson3000.  Last two times I got a flat I used this repair kit.  No glues, no hastles,  just use spit:  https://www.amazon.com/gp/product/B00BBE7KAM/ref=oh_aui_search_asin_title?ie=UTF8&psc=1   The bigger holes I had to use 3 plugs to fill it but it held for over 50 miles
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: GS Jim on February 10, 2019, 12:48:38 AM
Hello e7navey1999, there should be two lights, one green one red. The red is low battery, the green should flash when you push the button. This unit also works on cars and trucks. I've used it on chevs and GMCs
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: kardano on February 12, 2019, 01:01:37 PM
I did not understand if it is possible to calibrate the reading of the sensors or they are calibrated only at the factory... ::)
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on February 15, 2019, 07:38:06 PM
hey GS Jim: I tried my EL-50448 and got nothing.  It would not wake up my TMPS.  My TPMS are ok when riding.  Maybe it is user error on my part.  Hey Kardano: I do not think we can calibrate our TMPS.  They are factory set.  They are not extremely accurate but just give a ballpark PSI.  I live in the mountains so my readings are lower by 3-4 psi.  As the tires heat up the PSI can rise 3-4 degrees 
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: kardano on February 15, 2019, 08:42:28 PM
My VXDAS EL-50448 (for GM) works fine with my sensors, it seems the "Ford version" do not.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on February 15, 2019, 08:53:55 PM
Thanks Karado.  That is the unit I have.  When you use yours does your TMPS readout on your bike display...does it read tire pressure or stay blank?  Mine stays blank until i ride the bike for 2-3 blocks
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: GS Jim on February 15, 2019, 08:59:28 PM
Sorry to hear your wake up tool is not working Navy but just to clarify, did you try a new battery in it, does the green light flash when you hold the button or the red, are you holding it at the labelled area on the rim with bike ignition on? Also I find I have to hold the button for a while sometimes, like 30 seconds or so.
I have found the readings to be very close to my calibrated gauge  but on three different bikes the readings do vary by about 0.1 bar.
Although the readings are temperature (20 c) they are not altitude compensated so if you set them at sea level and go up to say 2,000 meters you can get a change of maybe 0.3 bar but if you set them at high altitude they will show the correct pressure at that height as the reading is just the difference in the external and internal pressures.
While I am writing this I see other posts coming in so to respond to the latest the reading on your bike stays blank till the centrifugal switch is activated at about 30 kph (or the wake up tool wakes it up).
I believe the Ford unit is EL-50449
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: kardano on February 15, 2019, 09:36:04 PM
When you use yours does your TMPS readout on your bike display...does it read tire pressure or stay blank?  Mine stays blank until i ride the bike for 2-3 blocks
I've a BMW R1200RT 2011. Start engine, the pressure digits are blank, after riding for 15 seconds digits show the value. With EL-50448 i can wake up the sensors and read the two values only with the ignition on and motorcycle on the stand. 
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on February 15, 2019, 10:50:39 PM
thank. Mine is a k1600 so they may have changed things a bit
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on April 05, 2019, 05:59:21 PM
After a full year of test: The 2032 seems to perform best. The 2050 does not work at all when the outdoor temp gets below 50 degrees F.  When it warms up to 65-ish F it seems to start working again
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Graff on April 18, 2019, 01:02:57 PM
What do you like the most about the 2032?
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: e7navy1999 on April 18, 2019, 03:01:26 PM
Actually i found one of my soldered wires broke and was sometimes connecting and sometimes not.  I think the 2050 battery will last much longer, more like the OEM battery.  The 2032 battery is easier to install as it already has wires connected and is wrapped with the yellow protection.  My 2050 battery is working after I repaired the wire. 
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Gunleif on May 17, 2019, 10:34:39 PM
I have a EL-50448, wake up tool. Paid $10, with shipping. Works every time on my K1300 GT.
Title: Re: Tyre Pressure TPMS / Wake-Up tool for RDC
Post by: Chetz86 on June 02, 2019, 11:32:57 AM
Hi Gunleif,

I also got an kingbolen EL50448 with GS911 but sadly i not able to wake the TPMS . Did this forum got any post that guide us to wake up the TPMS or u got any trick to make it success ?

Tan