Please take a minute to read this and offer any suggestions you can as I am a bit lost and not sure how to proceed.
The vehicle is a Citroen Relay van. X250. 2016 year 2.0 which we have been converting to a Motor home for the past three months. All was going really well until I came to installing the leisure battery's under the passenger seat.
In order for them to fit I had to cut out some of the foam insulation under the seat and without realizing the loom ran under the seat frame I accidentally cut through 4 wires.
Very sloppy I know but we all make mistakes.
Now I didn't realize my mistake until a week later when the vans battery went flat. This would have been due to it standing for a few weeks without use. I charged the battery and decided to give it a run and this is when I noticed the fuel gauge was on empty and light flashing plus the MIL lamp is lit.
The van seemed to run fine though and started etc without hiccup.
The next day I stripped the front seats out and lifted the sponge floor and found the 4 wires. I soldered them back together and tried things out but the gauge and MIL lamp were the same.
I tried code reading the ECU but our Snap on scanner from work needs an update and all the vans are on it except mine so couldn't read it properly, even on OBD 2.
I tried downloading a wiring diagram from Autodata but it dosent show wire colors on it as its using the Citroen number system which quite frankly I dont understand.
Now my questions are as follows.
3 of the cut wires were all black with no tracer. I dont know if I have connected them to there correct partners as there are no tell tale marks on them saying which one belongs with whom. Are these wires earth wires being all the same color and if so would it matter if they were mixed up?
What color are the fuel sender wires from the fuel pump?
would a fuel gauge fault Illuminate the MIL lamp on these vehicles?
Is the fuel sender unit fused?
Last but not least would a wiring diagram from a 2.2 diesel model be the same as my model.
Thanks in advance for reading this and I hope you can shed some light on the situation before I have to send it in to Citroen dealer.
Pete