johnlc Posted May 16, 2023 Share Posted May 16, 2023 The offside rear indicator on my 2008 Ducato isn't working. I have replaced the bulb and it still doesn't work. The van manual only indicates a fuse each for the brakelights and reversing light. Then also one for the sidelights. But the brake light and side light are working. Does anyone know if there is a separate fuse for the indicators, and if so, which one it is and the amp value. I haven't tried looking up a wiring diagram as it would mean nothing to me. Thanks in anticipation of any help. Link to comment Share on other sites More sharing options...
Keithl Posted May 16, 2023 Share Posted May 16, 2023 John, Is this on a van conversion or a coachbuilt MH? Keith. Link to comment Share on other sites More sharing options...
johnlc Posted May 16, 2023 Author Share Posted May 16, 2023 Keith It is a van conversion - 58 plate John Link to comment Share on other sites More sharing options...
rayc Posted May 16, 2023 Share Posted May 16, 2023 The indicator functions are carried out by the Body Control Module. It contains pozi fuses on each supply which of triggered are reset when the fault is removed Link to comment Share on other sites More sharing options...
johnlc Posted May 16, 2023 Author Share Posted May 16, 2023 Ray Thanks for that. I'm not sure I understand what that means but I have an electrician coming to look at it tomorrow. I can't get an auto electrician round here for 6 weeks! Are pozi fuses different to the ones in the fuse boxes described in the handbook? If the fault is cleared will anything need to be done to reset things or will it occur automatically? Sorry for my uninformed questions - I have no electrical knowledge but am having to try and get this sorted given the long delay time to see an auto electrician. Thanks for your help John Link to comment Share on other sites More sharing options...
g7eor Posted May 16, 2023 Share Posted May 16, 2023 If the front indicator is working it might be a poor connection on the base of the rear bulb Link to comment Share on other sites More sharing options...
johnlc Posted May 16, 2023 Author Share Posted May 16, 2023 Yes - the front indicator is working on the same side of the van. I have removed the bulb holder plate and cleaned it, put electra clean spray on it, and done the same with the bulbs. The bulbs seem to seat properly and I have tried three. I'm at the limit of my capabilities now, so I'm hoping the electrician will be able to test the circuit and advise (and hopefully fix the problem!) But any further suggestions appreciated Link to comment Share on other sites More sharing options...
Labby Posted May 16, 2023 Share Posted May 16, 2023 Have you checked that any earth connections on the bulb holder and body are ok ? Link to comment Share on other sites More sharing options...
Robinhood Posted May 16, 2023 Share Posted May 16, 2023 6 hours ago, rayc said: The indicator functions are carried out by the Body Control Module. It contains pozi fuses on each supply which of triggered are reset when the fault is removed Just for the record, I think Ray was having a senior moment (don't we all) as he knows he meant polyfuses. As detailed, these are in-line electronic components that function as a self-resetting fuse, and a such won't be mounted in a fuse-box unlike conventional fuses. Link to comment Share on other sites More sharing options...
johnlc Posted May 16, 2023 Author Share Posted May 16, 2023 Labby and Robinhood - thanks for your responses. Will check this tomorrow. Link to comment Share on other sites More sharing options...
johnlc Posted May 17, 2023 Author Share Posted May 17, 2023 Thanks to everyone for your responses. The electrician tells me it was a problem on the negative pin in the multiconnector going into the bulbholder plate, and has fixed it. Phew! Link to comment Share on other sites More sharing options...
onecal Posted May 17, 2023 Share Posted May 17, 2023 Hi Thanks for your reply, were the pin /pins corroded ? Regards Link to comment Share on other sites More sharing options...
MikeF Posted May 17, 2023 Share Posted May 17, 2023 On early Ducato the negative connector on the rear lamp assembly was undersized for the current flow. The negative current for the rear light, brake light, indicator , high intensity and reverse light all passed through this single connector. Overtime it overheated and lost its 'spring' making the contact even worse. Repair looms are available on ebay or a workaround is to fix a cable to the bulb holder common negative track and wire this to the earth stud In the rear pillar. Mike Link to comment Share on other sites More sharing options...
onecal Posted May 17, 2023 Share Posted May 17, 2023 Thanks for the update MikeF , undersized connections and conductors is becoming a problem with quite a few DC automotive connections and looms especially when made cheaply with poor QC Also the least bit of condensation and it fails Regards Link to comment Share on other sites More sharing options...
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