TPMS Activator with link

[GrinningGSer]

The Tyre Pressure Monitoring System (TPMS) is activated by
a) Unknown number of wheel rotations
b)Rapidly letting the tyre down

There are other occasions when you may wish to know your TPMS reading, without needing to to do either of the above
1)When you are too lazy to do pre check ride 'POWER CHECKS', using a tyre pressure gauge, (Power Oil Water Electrics Rubber), as recommended by the IAM. So easy to have an activator available before a ride !
2) You are replacing/testing and repairing a failed battery in your TPMS unit (This is a sealed unit, and I’ve been quoted up to £350 BMW, “including £160 diagnostics” but, if you are skilled at opening up and soldering, then CR2032, pre welded batteries, £0.72p each, are available Amazon)


My first mistake (Top right ), was a £1.99 TPMS activator , which did not work and small print revealed it was for Ford's
Success (Top LEFT) was with this £10 TPMS activator set up for Opel and GM cars
Link :https://www.ebay.co.uk/itm/36493290...OMKB4cASMK&var=&widget_ver=artemis&media=COPY

Ignition on, hold next to your TPMS unit, press the button (9v battery required) and one at a time, TPMS will be activated.

NOTE: the above will not register a NEW unit , which requires coding and I believe that BMW or GS911 can do that , but no experience .
The above only wakes up a TPMS which is already registered !

 

[GrinningGSer]

Note this is for 2014 WC GSA 1200, and I cannot confirm that it works for any other model.
My belief ( could be wrong ) is that Schrader make the TPMS units for BMW.

 

[RadioFlyer]

Schrader up to 2022 then incompatible LDL Technology. Aftermarket sensors by Schrader are much less expensive than the BMW badged overpriced part. The Schrader 3141M or the programmable 33900.

 

[GrinningGSer]

What is LDL and incompatibility as you discuss ?

 

[RadioFlyer]

What is LDL and incompatibility as you discuss ?

BMW replaced Schrader with LDL as the TPMS manufacturer.

Schrader sensors will not communicate with the LDL and vice versa.

 

[GrinningGSer]

I will guess therefore , that after 2022, the LDL sensors require different frequencies for TPMS awakening . Anybody know ?

 

[Pukmeister]

Note this is for 2014 WC GSA 1200, and I cannot confirm that it works for any other model.
My belief ( could be wrong ) is that Schrader make the TPMS units for BMW.

I bought one of the GM wake up tools for my 2008 Hexhead years ago and it worked just fine.

 

[GrinningGSer]

Reporting that the above wake up tool also works on a 2023 GS Trophy and a 2023 R18( if that means it’s the new sort of sensor ?)

 

[RadioFlyer]

All sensors wake up to a 125 KHz signal independent of whether they send their data at 315 or 433 MHz. The wake up tool generates a signal at 125 KHz.