Outer Limits 4x4 Board

I own a 2005 MK05.5 3LV6 GLS Triton.
At the moment, my 4wd light flashes when it bloody wants to. I have replaced the solide switch so far and didnt fix the problem. Has anyone else had this problem? Any ideas how to fix this?

Yeah I had mine flashing constantly in 2wd, had mitsubishi replace the 2 solinoids behind the firewall. $200 odd for the pair, i suggest sourcing them cheaper haha.. its fixed the problem on my '05mk 2.8td