got a heated windscreen-it dont work ok i try to find why?-so i checked it with voltmeter and its getting 13 v to wires so i think ok must be either a bad connection from wires to windscreen or something in windscreen so i did a continuity test on windscreen and it says i have a circuit-so what can be stopping it working-is it possible that altho the relay is working and letting 13 v thro can it not be working quite right so not enough amps are coming thro? so the wires are not getting hot enough to clear mist etc away? im at a lost cause with it now lol-any sparky's help

 

bad earth maybe

 

some cars the heated screens dont work unless its under a certain temp outside. could be your problem.

mAgs