Problem faulty glow plugs

[giuseppe89]

Hi guys I have a problem with the failure of the glow plugs of a Fiat multipla 1.9 mjet 120 hp. On the drive in question have been already changed the 4 glow plugs and replacement of the module of the glow plugs,he also checked the wiring which is ok.The light blinks to turn on and the glow plugs do not get voltage.By controlling the power supplies that come in the form of the glow plugs I found the following values to the framework, on: a positive 12 v,a second positive to 11.5 v, and a third positive at about 3.5 v, and of course, a negative. I have noticed, however, that these positive remain fixed in time,but at least one should be of the command for the ignition of the glow plugs themselves, and then present and then end...I was wondering if anyone had a pinout for these modules fiat given that they have not managed to find it on the network...the customer is not able to leave the car is expected to return as soon as he can, and I would like to fix everything.a last info,if the command from the diagnosis to the activation of the glow plugs, these are fed properly.thanks to all

[ugoboss]

I would try with an ecu used, if in active diagnosis works I know that it is you.

[giuseppe89]

Ugo also I thought the ecu but not having one to try I would like to know for sure...I would need a pinout if anyone is in possession.

[cinqueturbo]

I have made a screen in to the scheme if it can be useful..

[giuseppe89]

Thanks cinqueturbo after I connect from the pc and give it a look.thanks again

[salvatoreragonese]

Thanks cinqueturbo after I connect from the pc and give it a look.thanks again

Resolved Giuseppe?

[giuseppe89]

I delivered the car tonight and it seems to be going well,I have checked the connections and they were ok I then replaced the temperature sensor of the engine (even if parameters in the diagnosis worked regularly but I have noticed that removing his plug and the glow plugs worked regularly and I have tried it with the replacement) and the glow plugs have started to work on a regular basis...I tried it cold, and everything is in the norm. I would say that the case is solved and give you the confirmation as soon as risentirò the owner of the car