Ultra 197 ex 172 Cup
i got a small electircal issue, rear wiper goes very slowly and at the same time as the right indicator flashes, so i presume i am getting some short from the indicator wire ? also it goes when i put the car in reverse, which is quite good, but it don't go the full way and back, so its not that good. where could this fault like, i have changed the rear spoiler a few times so could i have caused a wiring issue up the top of the boot lid ? or would it be by the rear wiper ? wiring ? i did once remove the electircal socet to the rear wiper to stop this happening. also if i put the hazard switch on the rear wiper moves a bit each time the indicators flash.