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Offline FROSTY

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Tyre pressure sensor battery replacement.
« on: November 27, 2013, 09:12:02 AM »
Just reading the manual for the Trophy and it says that when the battery's are flat the display will stop working but cannot find how to change/replace the battery's. Does anyone know how to change them? Is there any instructions on how to do it?
Please tell me l don't have to take it to he shop...
P.S. My system is still working just want to know how it is done....

Offline Mordiglio

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Re: Tyre pressure sensor battery replacement.
« Reply #1 on: November 27, 2013, 09:42:54 AM »
Hi Frosty,
I'd like to find out as well, if possible at all.
If it is like in my kawa gtr14, the battery cannot be replaced as the sensors are sealed units.
They're supposed to last arounf 5 years, so no much concern there.
Both front an back on the gtr14 crapped up after just over a year.
They were both replaced under warranty.
I'm afraid the only option is to replace them with new ones and yes, it has to be done by the dealer as the units need to be registered with the ECU.

If you're good with electronics and soldering iron, there are videos on youtube on how to open the sealed unit and solder in a new battery, but not an easy procedure imo.

Offline Coconut

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Re: Tyre pressure sensor battery replacement.
« Reply #2 on: November 27, 2013, 09:45:37 AM »
Hi Frosty,

Attached is a drawing of the TPS sensor.

As you can see the bulk of it is within the wheel rim, so the tyre needs to come off.

I haven't replaced one of these, but I think the batteries can be changed,
but if not then the whole sensor would have to be changed !

Either way you need to have facilities to remove, replace and rebalance your tyres ......
or take it to the Dealer !


Offline DonTom

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Re: Tyre pressure sensor battery replacement.
« Reply #3 on: November 27, 2013, 10:57:10 AM »
I would assume the battery will last longer than the tires in most cases. Have the TPMS batteries changed when the tires are changed and then  I doubt if you will ever have to be concerned about a dead TPMS battery.

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Offline cropbiker

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Re: Tyre pressure sensor battery replacement.
« Reply #4 on: November 27, 2013, 12:39:08 PM »
I have been told that the TPMS is a sealed unit and does not have a user replaceable battery. When it is dead you replace the whole unit and valve head. Batteries should last 3-4 years.
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Offline Paulvt1

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Re: Tyre pressure sensor battery replacement.
« Reply #5 on: November 27, 2013, 12:43:13 PM »
These things are one thing i wish my bike didn't have, but they came with the package. I had a new rear tyre fitted and the fitter was very careful to install the tyre as to not damage the sensor. He informed me the front tyre was an even closer fit. I won't have them on my next bike - that's for sure.

Offline DonTom

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Re: Tyre pressure sensor battery replacement.
« Reply #6 on: November 27, 2013, 01:11:48 PM »
*Originally Posted by Paulvt1 [+]
These things are one thing i wish my bike didn't have, but they came with the package. I had a new rear tyre fitted and the fitter was very careful to install the tyre as to not damage the sensor. He informed me the front tyre was an even closer fit. I won't have them on my next bike - that's for sure.
I am curious why you (or anybody else) would NOT want a TPMS on a cycle. I installed  an after market TPMS on each of my other three bikes. Even my dirt bike.  Makes it so easy to see how much air is in each tire, for one thing.

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Offline Paulvt1

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Re: Tyre pressure sensor battery replacement.
« Reply #7 on: November 27, 2013, 01:21:20 PM »
If the sensors were small or fitted to the wheel exterior i would agree. As it is, these are neither, and a lapse in concentration from a tyre fitter could see you with an expensive bill and the hassle of a dealer trip to set the new sensors up.
A quick check pre ride with a cheap gauge is no real biggie and a puncture on the move is instantly noticeable.
Pointless tech IMHO.