Voltage at the loom socket under the instrument panel (12GSA)

RSavage

RSavage

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To save me going out into the cold, can anyone tell me what the voltage is at the free socket in the loom under the instrument panel on a 12GSA? It's the one that you might connect your GPS unit to (not me though, I want to power a small amp. to boost the audio o/p for my Zumo 550).

TIA

Richard
 
RSavage said:
To save me going out into the cold, can anyone tell me what the voltage is at the free socket in the loom under the instrument panel on a 12GSA? It's the one that you might connect your GPS unit to (not me though, I want to power a small amp. to boost the audio o/p for my Zumo 550).

TIA

Richard
Click to expand...

12V as far as I am aware. I bought a plug for it to power the Zumo I have fitted, although I did see a black socket further down the loom towards the right side of the bike. I do not know what it is for. I noticed it the other day and thought I had knocked a connection off but loooking at my mates bike, his is the same.. Looks like the connector on the intake manifolds where the injectors are. Anyone know what that socket is for? It is not blanked off and cable tied onto the loom.
 
It's 12v, not sure what the limit is on the connection at the zfe in terms of current, but any satnav type load would be fine. (1a or so)

The plug up the right inside the beak is something to do with fog lights on a GSA.
 
ianf said:
It's 12v, not sure what the limit is on the connection at the zfe in terms of current, but any satnav type load would be fine. (1a or so)

The plug up the right inside the beak is something to do with fog lights on a GSA.
Click to expand...

Mine is an '09 GSA, and me mates bike is GSA also, an '08
 
I can see a downward facing plug, just behind the fuel pump gubbins. Us spec bikes have a charcoal canister just below it. Might be for the valve on that.
 
Norfolk Tiger said:
In answer to the above,start the engine and it should be around 14.4 volts :D:D
Click to expand...

That's the, predicted, regulated voltage for an automotive electrical system. And I agree that's what I would expect to find everywhere on a non-CANBUS vehicle. I was wondering if the voltage around the CANBUS was regulated at 12V.

The 3.5W amp modules (Maplin p/n N64AW) that I fancy using to amplify the Zumo audio o/p require a 4.5 to 12Vdc supply.

Richard
 
Nobbyspiles said:
12V as far as I am aware. I bought a plug for it to power the Zumo I have fitted, although I did see a black socket further down the loom towards the right side of the bike. I do not know what it is for. I noticed it the other day and thought I had knocked a connection off but loooking at my mates bike, his is the same.. Looks like the connector on the intake manifolds where the injectors are. Anyone know what that socket is for? It is not blanked off and cable tied onto the loom.
Click to expand...


Hi Nobby

I initially powered my Zumo 550 from that socket but soon abandoned it and ran a dedicated feed to the battery because I found that the CANBUS didn't power down quickly enough when refuelling for me to opt to keep the Zumo running on battery power before heading off to pay. The slow start-up time is one of the few things that I continue to find annoying about the 550.

Because the Zumo runs on 5Vdc and neither the bike loom nor the car plug have any voltage regulation it must have internal voltage regulation and will have been designed to cope with the vagaries of vehicle voltage levels and regulation. My little amps for the helmet speakers require 4.5 - 12Vdc which makes me fear for their life expectancy if the CANBUS is delivering more than 12Vdc. I could build a regulated supply but . . . . . . .

Rgds

Richard
 
Hi
I ventured into the cold (and rain) after finding my length of loom and plug to suit the under-beak-socket and my trusty Fluke meter. As suggested by Norfolk Tiger the voltage available at the socket is 14.4 Vdc. Blast! Voltage regulators here I come. :-(

Richard
 
Nothing wrong with 14.4v. No need for a voltage regulator.
 
Most alternators knock out 14+ volts although it is a 12v nominal system.
 
Smug said:
Most alternators knock out 14+ volts although it is a 12v nominal system.
Click to expand...

True

But the little amplifiers that I am using to boost the earphone o/p from the Zumo operate on 4.5 to 12Vdc. So, 14.4 is a fair bit above the stated maximum operating voltage, don't you agree?


R
 
Nippy Normans supply Touratech, Wunderlich, Desert Fox and many other makes of accessories.
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