Relays - surprise surprise
Posted: 27 Jan 2013 15:05
My Corsaro has been playing up for while on the high beam, so decided to investigate. I took apart the handlebar switch to see if anything amiss and managed to get lose the ball bearing and the spring from the high / low switch. With this fixed, thanks to a biro and a bicycle shop, i decided to take the headlights out and check the bulbs. User manual - headlight - please take to qualified electrician - bugger.
Managed to remove the headlights - easy now I know, but just don't lost all the small allen bolts. Bulbs ok. Next the fairing off and test the relays. Mine are on the left and are 1. High beam (2 contacts), 2. Low beam 3. Fans.
All appeared ok - blue light comes on when in high beam, relay clicks, low beam relay clicks and turns off when high beam selected. Low beam relay cuts out after 30 seconds with ignition on... tested relay - get a short when I manually close the contacts.
So I cheated and made up a jumper with a spade on each end and plugged this into the relay output on the loom. Relay 1 main beam lights - relay 2 low beam lights relay 3 fans come on. Then I had a brainwave - I swapped the low beam and fan relays and the lights started working - bugger me, how does that work? Maybe not enough current to get the contacts to contact? No idea. So I have been out today with the jumper in the low beam block. I think I'll buy a dozen relays...
One other thing, when I removed the fan relay the engine management light comes on - so that proved that relay!
Managed to remove the headlights - easy now I know, but just don't lost all the small allen bolts. Bulbs ok. Next the fairing off and test the relays. Mine are on the left and are 1. High beam (2 contacts), 2. Low beam 3. Fans.
All appeared ok - blue light comes on when in high beam, relay clicks, low beam relay clicks and turns off when high beam selected. Low beam relay cuts out after 30 seconds with ignition on... tested relay - get a short when I manually close the contacts.
So I cheated and made up a jumper with a spade on each end and plugged this into the relay output on the loom. Relay 1 main beam lights - relay 2 low beam lights relay 3 fans come on. Then I had a brainwave - I swapped the low beam and fan relays and the lights started working - bugger me, how does that work? Maybe not enough current to get the contacts to contact? No idea. So I have been out today with the jumper in the low beam block. I think I'll buy a dozen relays...
One other thing, when I removed the fan relay the engine management light comes on - so that proved that relay!