Yeah, cool, the consensous seems to be it's a BP. I'll check with Ducati HQ to get the full details, but thanks anyhow..
That bolt under the "PlayStation" sticker that isn't doing anything is where the front of the pillion hanger would attach.
Cool. OK so I know it's a 916 Bip (98) now and is 21 pin to the ECU (1.6M IAW). Looking at the wiring, the loom from the ECU down the left of the bike looks OK, the mess of wires is coming from the battery up the right side of the bike and all the way to the rear of the seat. first pic is from the battery (are these wires supposed to be exposed? Seems like some of them are cut!) Second pic is just a bunch of black wires, mostly just "end" I'm guessing this is where an immobiliser was! 3rd pic is leading up to the rear of the seat, not sure of this is supposed to look like this or again part of the immobiliser.. My question is, do I need a whole wiring loom or just the main fuse bit? If I do need the main fuse bit only, does that matter if it's 19 or 21 pin? or do I need something else (like a new bike!! ) Cheers
That looks like it's had an alarm fitted at one point and since been cut out. The loom should be taped up. You could tidy things up, but there'll be a couple of cuts that will need remaking.
Yep, you're right. Few bottles of lager and it looks better already! I'm thinking, like nelly says, it's had the alarm ripped out which was probably spliced into the loom. I'm sure it needs at least the main loom, so might buy one of those and replace it, then see how much more ugly stuff is left! I'm guessing it's not s'posed to look like that then!!!
The black wires were almost certainly for an alarm and the best thing would be to remove them all and splice the original wires back together if you can. The wires at the rear with the plastic terminal covers are most likely the rear indicator wires and will match up to each rear indicator but a circuit test should confirm that. The wiring at the front side could be for the neutral switch and the oil pressure switch although it looks like the loom has also been opened up or has worn through. The whole loom should really be removed and checked and repaired as necessary. It is also necessary to match the loom pins to both parts, so in your case 21 pins with a 21 pin front part. Below are some scans of the Haynes manual wiring diagrams and they may help you sort out what you have. The colours are not always accurate as Ducati have changed them at times but generally it's a good enough guide and i have used them to check several complete looms for connectivity and function.
Thanks Red! I think I'll buy a new loom to make life a bit easier - at the moment there's a lot of reasons this bike won't start so could do with making sure the wiring loom at least is right. Thanks for the diagrams, need to get my head round that once I've got a new loom. NB Is there a way to check the main loom is 21 pin? I can see the rear loom is 21 pin cause there are 21 silver conectors in the ECU clip, how would I know if the main loom was 21 pin tho??
You would need to count the pins in both parts of the loom. With any luck you will get a loom with both parts still held together with the large connector. Check the female end of the loom has 21 connections as earlier ones are "dead" in places with no connection. If you can get a rear part that is a mono and longer get it as they are rare and you can always use it for a genuine mono type conversion later if you want to go in that direction at some point. The main loom is in three parts plus the wiring that goes into the headlamp holder for instruments and lights.
Gotya, can you tell from my pics which part (or parts) I will need to replace? I thought there were just 2 parts, the rear bit that connects to the ECU and the section from the battery! Is there a section in between? It looks like the section from the ECU is farly intact, so I was thinking about leaving that there! A whole loom seems quite pricy, I was hoping to just buy the section I need, just not quite sure which section (or sections) that is. I could take it off the bike, but was wanting to leave the loom on there until I get the replacement, just cause that would be a bit easier to swap like for like! So just trying to figure which bit I need! :/
From the look of it I would say the middle and possibly the rear section. The front section (the shortest) has all the connections for the lights and instruments as well as the holders which locate the plugs to the headlamp holder. The mid section has the main fuse box, live battery feed and the wiring for the relays and oil pressure switch etc. The rear section, which can be mono or biposto has the rear lights, ECU connection, rear fuse relays (where applicable) and the connections to all the nearside pickups\connectors on the bike such as injectors, fan switch, TPS, ECU engine temp switch etc. When you lay out a loom off the bike it tends to be more obvious. It is still highly likely you could sort out your loom. I have fully repaired several looms that have been butchered and modified in the past and it's a relatively easy but time consuming job as you can buy virtually all the loom components separately if you hunt around. I would suggest you take the loom off and examine it and see what damage has been done and then take it from there. It is also quite hard to get a decent loom these days that someone has not messed with.
Thanks Red, I've taken the loom off and you're right it didn't seem too bad, there were 4 wires I had to make good, but that seemed to be all of it, the rest was just the black wires of the old alarm (which I've all cut out now). Only question is, in the middle bit of loom there were two wires (pink and white) which seem to be odd in that the two ends of the wire come from the same direction and terminate in the middle of the loom. Do you happen to know if this is meant to be or has this been bodged somehow and worse case should they connect to something? The pic below show these two wires (the pink and the white wires) just wondering if this looks normal??? They have been neatly shrink wrapped at the ends so looks like maybe this was manufactured like this, but still looks a bit odd (why would those wires even be there if they don't go anywhere??)
The two wires are actually like that, certainly in the looms that I have stripped have been so. It appears to be a way of just joining two wires but I don't know why Ducati (or whoever) chose this method although I doubt that they manufactured the looms themselves. Some of the wires are also joined like the above to make them crossovers or taps into the power feed to go to certain pickups, sensors etc.
Thanks again Red, that's cool cause I've "wrapped" it all back up now and put it back on the bike, just seemed to be a weird way of doing things, like you say maybe some bikes use them as a tap to other things, but otherwise don't go anywhere other than back to where they came from. Cheers
Yeah that's like my ECU Dave. I've got those pins on the ECU as well, but if I look at the connector block that connects to the ECU, I can see there are only 21 (or 22 I can't remember) pins that actually connect to the ECU. I assume the ECU is the same regardless of if you have a 19 or 22 pin wiring loom (seems mine is 22). Thanks anyhow.
The ECU's are generic and are actually for a car, a Fiat or some other Italian make. They are modified to be used on Ducati's. It's just to keep the manufacturers costs down.
