Berlingo help needed

[Longerjohn]

I have a 09 berlingo van with wiring issues. 
van starts but runs a little rough drives ok just not a lot of power. Lots of warning light up on dash.  Then Whenever I switch on lights van starts juttering almost cutting out then if I switch to full beam or even turn wipers on van cuts out completely. Restarts no problem. Don’t know much but it seems to me that electrical power is being taken away from engine whenever I switch on lights etc and not enough left to make engine run. And ideas what or why this is happening. And help would be much appreciated thanks

[Sol]

Hi there, I'll look out some schematics for the lighting to see if anything jumps out. It's a bit odd, let's have a look.

I moved your thread to the right section (B9)

[Sol]

Here is the schematic for the lighting high beam / low beam. Also a list of what the component numbers mean. I feel this could be an issue with the engine fusebox, since the lighting is controlled by the BSI but powered from the PSF1 control unit which is part of that fusebox. 


  Low Beam - High Beam.pdf (Size: 343.67 KB / Downloads: 4)

  Citroen Components.PDF (Size: 153.2 KB / Downloads: 4)

[Multispacer]

I have a 09 berlingo van with wiring issues. 
van starts but runs a little rough drives ok just not a lot of power. Lots of warning light up on dash.  Then Whenever I switch on lights van starts juttering almost cutting out then if I switch to full beam or even turn wipers on van cuts out completely. Restarts no problem. Don’t know much but it seems to me that electrical power is being taken away from engine whenever I switch on lights etc and not enough left to make engine run. And ideas what or why this is happening. And help would be much appreciated thanks

Berlingos can be quite bad for the earth lead corroding causing all sorts of electrical problems. You could try hooking up a heavy duty jump start type cable from the negative on the battery to the engine block or some nice clean piece of metal work on the body, start the car switch on a number of loads like the headlights, wipers etc and see in that makes a difference or it still cuts out?

[Sol]

As above of course is perfectly good suggestion but if that doesn't fix it, check the voltage at the battery when it's running, with a test meter. Should be 14.4v

Post back what you measure.