Hi guys, my 999s (and me) got an absolute soaking last weekend - probably the worst weather I've ever ridden in. The EOBD light is now on and the codes it shows are: 10.1 Hor. Coil shorted to power supply 11.1 Ver. Coil shorted to power supply 12.2 Inj1 shorted to earth 13.2 Inj2 shorted to earth It's been a whole week so I thought it would have dried out by now? I've had the fairings off to give it a good clean and wipe down but maybe I should get a hair-dryer in there and give it a blast? Any ideas? cheers, Dom
Replace the coil/injector/fuel pump relay and that should cure this. It's a battery out and remove battery box job though, as the relay is behind the heat shield and found below the starter relay.
Cheers for that Chris. Does that one relay control the fuel pump as well? That would make sense because a little while after getting home I went in to the garage to find the fuel pump whirring away furiously, even though the ignition was off. I just disconnected the pump at the time, but I guess the relay was the cause...? cheers, Dom
Yes, this £1.90 blighter controls all three !!!! The ghosts in the machine are a common symptom of water ingress into the relay. Get some dielectric or silicone grease on the terminals when you change it. Some advocate sealing the relay up in the finger of a rubber glove. 4 Pin 'Normally Open' contact MICRO Relay - 20A | eBay Buy a spare :wink:
Will do. I have some dielectric grease so will give it a good coating and maybe even the rubber glove trick. Thanks for the link - I've just been searching for a replacement... cheers, Dom
I finally found some time to attack the Battery Box (what a major p.i.t.a, and what a dumb place to put all your mission-critical electrics!) and sure enough the ignition relay was showing serious signs of water damage / corrosion. In fact, the connector which the relay plugs in to is similarly corroded and it doesn't look like it can be dismantled and suitably cleaned up, so does anyone know where I can source the part? cheers, Dom
The old rubber glove finger and dielectric grease trick works great, gave my 749 the treatment a couple of years ago no problems. I also turned the relay so it has the connector at the bottom so water does not pool.
Great - thanks Chris - I've been searching ebay but not got quite the right terminology... cheers, Dom
Amazing how a £2 part can kill a bike! I'm really at a loss as to why Ducati don't specify that these should be replaced at every major service. It really would save owners a lot of hassle and it's not a massive cost in parts, and not that difficult to do if you're already doing a service. They would also be making money on selling you a part! If any dealer out there is reading this, *PLEASE* add it to your major service schedule; your customers will appreciate it!
The replacement ducati part is an improved design and is sealed unlike the originals. Spray with ACF50 and you wont need to worry about dielectric grease and rubber gloves. I left mine behind the battery tray but turned it around so that the relay is pointing up instead of down meaning that any water would drain out rather than stand in the connector and spoil your day. +1 just replace them every now and then and carry a couple of spares if going on a trip. If your fuel pump relay is that bad I would bet your headlight relay is crapped too. If you dont know where it is, look under the top fairing and you will see a black bit of plastic. Remove this and the relay is on the inside strapped to the headlight shell on the offside. If you ever get stuck without a spare relay you can swap it out for the headlight one and get home.
Thanks for that JC. Will check the headlamp relay. I think I will relocate the ignition relay just because it's such a b*stard to get at. While I'm there I'm gonna clean the (filthy) battery box get busy with the ACF50.
After much fannying about - cleaning out the filthy battery box, re-routing the Relay to where I can get at it, and re-wrapping various sections of loom - I've finally re-assembled everything and the bike fired up first time... Er, phew!! Thanks for your help fellas. cheers, Dom
Well reminded JC. Forgot about that... Hoping to get out on the bike at the weekend if it's dry so will check the headlamp relay in the week before I put the fairings back on.
Whats the trick to finding the original home of the relay , i dont want to force anything . I thought i would replace and seal up as per the above postings .
It's a right pain to get at, you have to remove the battery holder and then take off the heat-shield so you can get at various bits of the wiring loom behind it. The ignition relay is bottom right of the battery box, looking at it from the heat shield side. Good luck!
