BMW R1250GS Heated seat connector- Ground and Positive ?

[Shammy]

Hi Guys,

Have a second hand heated seat coming for my 2023 R1250GS. I would like to know which is the positive and which is the ground wire on the actual connector of the seat. I am buying the ezcan and will run the seat from that, as i don't have the oem loom on the bike. If anybody knows the polarity and can let me know, that would be great.

 

[PitaNaanRoti]

Continuity test plug to switch.
Should be + to switch BUT not always the case. Some switch the -

 

[Shammy]

Continuity test plug to switch.
Should be + to switch BUT not always the case. Some switch the -

Thanks for the reply, the problem i have is that there is no switch, it's just the riders seat, not the pillion, which i beleive has the switch. So it will be just the connector on the underside of the riders seat i have to connect to the ezcan.

 

[Pukmeister]

Can’t vouch for the OE seat, but my aftermarket heated Sargent is just a long coil of fine heating wire so polarity doesn’t really matter. In my case I was sold a used seat allegedly working that wasn’t. I had to deconstruct the seat and find the breaks in the element, which were in the groin areas where the seat had been strapped down on a ferry. Repaired by crimping with tiny bootlace ferrule sleeves to restore continuity and provide 8 ohms resistance.

 

[Shammy]

Can’t vouch for the OE seat, but my aftermarket heated Sargent is just a long coil of fine heating wire so polarity doesn’t really matter. In my case I was sold a used seat allegedly working that wasn’t. I had to deconstruct the seat and find the breaks in the element, which were in the groin areas where the seat had been strapped down on a ferry. Repaired by crimping with tiny bootlace ferrule sleeves to restore continuity and provide 8 ohms resistance.

Thanks for the info, have seen remarks before about the seats being damaged when strapped down on the ferries. Thinking about it, i'm sure your right about the polarity.

 

[Shammy]

If anyone out there has a moment to spare and has a heated seat, can they put a meter accross the 2 pins on the connector of the riders seat and measure the reading in Ohms. The reading i get is 9.7ohms, not sure if this is the norm as the seat i ordered second hand doesn't seat to be heating very well from a spare battery. Not sure if it's the battery or the seat. Thanks

 

[Hann]

9.7 ohms suggests a power of about 21W which i think would be about right.
Don`t forget that hooking your seat up to a spare battery at ~12V will give less power (and thus less heat output) than it would under real riding conditions where the circuits will be regulated to ~14.4V.
The heated seats have only a moderate power output, they kinda work on the slow cooker principle, low heat over a long time and the heat felt will build up to a useful level.
If the seats had so much power that you could feel the effect after just a minute or so it`d end up burning your arse after a short time.
On my bike i either have to turn the power down after an hour or so or for temporary relief from cheek burn have to stand on the pegs for a minute or so to cool down......!

I have heated seats on my 1250, i will measure the resistance for you tomoz.

 

[Hann]

I`ve just whipped the seat off and got the meter on it and the results are in...

I can confirm THAT......










The electrical resistance..................................












of an R1250GS heated seat IS............









9 Ohms.

 

[Shammy]

I`ve just whipped the seat off and got the meter on it and the results are in...

I can confirm THAT......










The electrical resistance..................................












of an R1250GS heated seat IS............









9 Ohms.

Hann, that great, thanks for your time and effort, If i'm getting 9.7 ohms thats close enough to tell me that the elements are good. Thanks again.