Heated grip switch

[Dallas]

Hi all,

Hopeing for a bit of electrical advice related to my heated grips. Got an R1100GS and so the heated grip swich is on the dash bit rather than handle bars and my problem last winter was that I could only get the 50% heat rather than the full blast. Swith to warm and both grips heat up, switch to hot and nothing.
Been checking the wire'ing and all seems ok, taken the switch out and been checking (measuring the resistance) and:-

Switch off or middle position, resistance from the middle wire (wire going to middle of switch and other two - infinite.

Switch to one position and resistance from middle wire too the switch side zero, resistance from middle wire to other side infinite

Switch to other position and resistance from middle wire to switched side infinite, resistance from middle to other side infinite.

I thin this indicates that my switch is buggered right? I should get a connection or zero resistance from middle to either side if switched, right?

Any help much appreciated.

 

[Daithi]

Hi Dalas,
Can't quite follow what your reading on the meter, but middle position of my
switch (dash mounted on 1100) stopped working. Checked it with a meter
and compared the mid and third position, there was a difference so I replaced
the switch. The new one fixed the problem, so the switch was at fault.

Daithi.

 

[Dallas]

Hi Darthi,

Nice to hear from ya' again, seems our bikes were put together by the same guy and hence similar problems

(Disks are now fine BTW)

I've just re-read and, yeah it's a bit confusing - Saturday night just had a curry and the beers are coming out so, what I mean is.

Set my meter to read resistance

Got the switch disconected and out and have 3 wires going into the back

L M R = Left, Middle, Right

Got 2 wires on my meter Red + Black

Switch set in middle or off position

Red to Middle

Black to Right - Infinite resistance

Black to Left - Infinite

Switch now set to Left Position

Red to middle

Black to Left - Zero resistance

Black to Right - Infinite

Switch now set to Right position

Red to middle

Black to left - Infinite resistance

Black to Right - Infinite resistance

From reading the above it seems my switch is duff but just didn't know if there was some special BMW logic going on.