side marker lights and rear fogs not working Hymer B690 Merc (1 Viewer)

[Wanderingmac]

Hi would appreciate any help. Side marker lights and rear fogs not working on Mercedes Hymer B690. All fuses appear ok. Not able to identify which fuse operates these but checked all fuses I could find on van. Was an advisory on MOT but passed for this year.

 

[tonyidle]

If the van has seen a bit of life look underneath for a poorly wired and not very waterproof connection point. Probably easiest to trace the side marker wiring towards the rear where you'll probably find where it is connected. There's no common connection point for the two items you mention so it's a bit of a coincidence that two fuses fail at the same time. My stab in the dark would be the only place they come together - a connection box. That may be a rather grandiose term for what could be a rats nest held together with insulation tape. Could easily be dangling relatively unsupported in one of the rear corners.