Intermittent D+signal

[Timvlou]

Hi im having trouble.. Motorhome is hardly ever switching to 12volts whilst running so no 12v fridge or auto sat retracting.. Strangely the step is still retracting. Please point me in the right direction only if you actually have experience of this issue. Fait ducato 3.0 swift kontiki Black edition 2015

 

[Trek]

D+ signal comes from alternator when it’s spinning I.e engine running

if step retracts every time engine starts then step must be seeing the D+ From the alternator so if fridge etc intermittent then I would suspect intermittent connection in the wiring if you can’t find the fault Perhaps provide a wire from fridge to step to use the steps D+ ?

 

[xsilvergs]

Not sure if this will be of any help to you but it does give the pin-out and may make testing a bit easier if it is applicable to your van (colours don't seem to tally).

Converter's socket - MisterG

The Peugeot Boxer, Citroen Relay and Fiat Ducato can be equipped with an option for a “Conversion Interface” or Converter’s socket. Fiat: “Electrical Interface Supply Socket (For Conversions)” option 081 Peugeot: “Electrical connections interface box / Includes reinforced alternator” option JI01...

misterg.org.uk

 

[ActiveCampers]

Does step retract on engine start or ignition on? (D+ = engine running, KEY+/IGN+ is when ignition is on)
How did the satellite retract before - engine running or ignition on?

(There is a difference and an extra step if D+ which makes a difference to troubleshooting)

If they all retracted etc at the same (whether D+ or IGN/KEY) its likely not a van issue its an issue - its likely a wiring issue or fuse issue in the habitation somewhere, probably hidden away.

(We use a same D+ signal for auto step, battery to battery, and other bits n bobs - it will be the same signal used for all the connections)

Looking at your converters socket wiring, they have 2x red wires from the D+ so I'd *guess* your retract is on engine start . Odd they are taking 2x feeds as that' require 2x relay setups - unless they interface to something that knows D+ is 0v?

Afraid no knowledge of your conversion but would need some wire tracing to see what is where - but could be something quite simple - but you'd need to trace the wires and see what they connect to - and get a meter out and see if you are getting signals at each point. Probably trivial - but almost certainly not a van problem, so don't worry about engine/battery etc

 

[ActiveCampers]

D+ signal comes from alternator when it’s spinning I.e engine running

if step retracts every time engine starts then step must be seeing the D+ From the alternator so if fridge etc intermittent then I would suspect intermittent connection in the wiring if you can’t find the fault Perhaps provide a wire from fridge to step to use the steps D+ ?

No it doesn't on the sevel vans, D+ is actually 0v on engine running generated by the ECU sending a pin to earth (and only if there is a minior current draw on that pin). On Sevel you have to use the D+ 0v signal to earth a relay to reverse the voltage to get a "standard" 12v D+.

 

[witzend]

Is your ignition light constant or does it flicker

 

[Sunpower88]

No it doesn't on the sevel vans, D+ is actually 0v on engine running generated by the ECU sending a pin to earth (and only if there is a minior current draw on that pin). On Sevel you have to use the D+ 0v signal to earth a relay to reverse the voltage to get a "standard" 12v D+.

I have found a oin in yhe 16 pin connector block and it is live with ignition on and deadvwhen engine is running is this what you speak about how can you change it to live when runnng?

 

[Tommohawk]

Sorry I dont think I can help directly but have a related question which maybe will help. If the D+ on Sevel is a switched ground, and this can be used via a relay to provide a switched +ve, why not simply use a switched +ve in the first place eg normal switched live, like say cigarette lighter as an example? Not sure if this is switched on that vehicle, but something like that.

 

[Sunpower88]

I fitted a switch off my ignition circuit ,its probably better as i get concerned about my battery to battery charger getting hot and hoping it turns it self off itself ,the case reaches 80 degrees .
sorted it works great for me and no worries just have. to remember to turn it off when on long trips like spain ,Croatia, france

 

[Sunpower88]

Sorry I dont think I can help directly but have a related question which maybe will help. If the D+ on Sevel is a switched ground, and this can be used via a relay to provide a switched +ve, why not simply use a switched +ve in the first place eg normal switched live, like say cigarette lighter as an example? Not sure if this is switched on that vehicle, but something like that.

hi i have a 2016 swift black addition 2015 build FOR 12 VOLT TO THE TRAVELING CIRCUIT EG THE TRAVEL 12V SOCKET UNDER THE SEAT MAY BE EVEN THE FRIDGE 12V WHEN TRAVELING TO WOK ,DO this. go to the control panel above the door on my kontiki. click through the menu until you see the sergeant code number then hold your finger on the play button thats the on in the center on the left this will take you int the factory settings.
press the up or down button and scroll through the options you need to find the option for selecting weather its a CARAVAN or a MOTORHOME if you do not see a OPTION MH100 or something that starts with MH you are probably set in the caravan mode and you will not get 12volt power to traveling socket and traveling lights or 12 v for the fridge.

tis has happened to me because i have reset the setting to factory defaults and my van went into caravan mode. its the control panel above the door black on that model

 

[Sunpower88]

hi i have a 2016 swift black addition 2015 build FOR 12 VOLT TO THE TRAVELING CIRCUIT EG THE TRAVEL 12V SOCKET UNDER THE SEAT MAY BE EVEN THE FRIDGE 12V WHEN TRAVELING TO WOK ,DO this. go to the control panel above the door on my kontiki. click through the menu until you see the sergeant code number then hold your finger on the play button thats the on in the center on the left this will take you int the factory settings.
press the up or down button and scroll through the options you need to find the option for selecting weather its a CARAVAN or a MOTORHOME if you do not see a OPTION MH100 or something that starts with MH you are probably set in the caravan mode and you will not get 12volt power to traveling socket and traveling lights or 12 v for the fridge.

tis has happened to me because i have reset the setting to factory defaults and my van went into caravan mode. its the control panel above the door black on that model

sorry the play button on the right is the one you press not the left