Odd accessory electrical behaviour

[divelandy]

Use the sat-nav for the first time in a 2 months on the bike yesterday and found the intercom was not working and sat-nav was not being charged - looks like there is an issue with my accessory power being fused - arse!

The Autocom 300 intercom does not have a fuse (should be taken care off by the CAN-BUS magic), but the Garmin 660 does. Both of these are soldered in parallel to the back of the accessory socket under the tank (intercom was done like this by NOG and i added the GPS) and covered by plenty of self-amalgamating tape.

On the way home - still nothing. Took off the fake-tank panel & switched ignition on, still nothing. Removed the fuse from the sat-nav & switched on the ignition, the intercom worked. Put the fuse back in, they both work.

Any ideas what i'm missing / why this happened?
(even a short on the fuse shuldn't cause an issue)

 

[Greggers]

I bet there was something causing a current leak around the fuse tripping the canbus ... taking the fuse out posssbly 'cleaned' that up, allowed the canbus to re-set and robert's your mother's brother...

What do I know though ...

G

 

[divelandy]

I bet there was something causing a current leak around the fuse tripping the canbus ... taking the fuse out posssbly 'cleaned' that up, allowed the canbus to re-set.

Thanks G (hopefully the good one!)

I don't get where the leak is going to?

The fuse has a waterproof cap so unlikely to allow a leak to earth (short) - so the only option would be to bypass the fuse, er, which is a direct connection anyway. If the contact's were dirty, that'd just add additional resistance & therefore reduce the voltage available to the GPS, but it shouldn't stop the intercom - and it wouldn't cause the can-bus to trip.

Not easy to prevent it happening again, if i don't know the cause...

Confused of Oxford

 

[Greggers]

Lolz... ignore it and it will go away!

These new systems, it's not like wrapping the silver foil from a packet of fags round the fuse to get you home ...

G

 

[v8legend]

Thanks G (hopefully the good one!)

I don't get where the leak is going to?

The fuse has a waterproof cap so unlikely to allow a leak to earth (short) - so the only option would be to bypass the fuse, er, which is a direct connection anyway. If the contact's were dirty, that'd just add additional resistance & therefore reduce the voltage available to the GPS, but it shouldn't stop the intercom - and it wouldn't cause the can-bus to trip.

Not easy to prevent it happening again, if i don't know the cause...

Confused of Oxford

Greggers isn't the only good Gregg on this forum. Ask my wife and kids. Better still, ask my girlfriend.

 

[everywherevirtually]

Greggers isn't the only good Gregg on this forum. Ask my wife and kids. Better still, ask my girlfriend.

classic

 

[divelandy]

Greggers isn't the only good Gregg on this forum. Ask my wife and kids. Better still, ask my girlfriend.

i thought you were only good, when you were bad!