after inspection I found the culprits to be three connectors next to the gear box. Appeared that my dogs had had a go at chewing the plugs. After a quick fix with some insulation tape the problem went away, however I wasnt too happy about how exposed the plugs were so I decided to do a little upgrade (hopefully not a downgrade) by placing the wires in a waterproof box and joined the cables using terminal block...
First image is of the connectors ,
second image is the cables in the box
And finally, cable tie just there just in case :)