Tried to turn on the rear defroster. The light on the switch was on however once I release the button the light was off. Swapped the fuse with others of the same rating, but it still doesn't work. Could it be the problem on the switch or the relay? Thanks for any advise in advance.

__________________
Harry (94 C280)

I know this thread is 9 years old now but this is the same situation I am having and this is the thread I found in the search function. Hopefully someone has come across an answer for it in the last 9 years. Any help? Thanks.

__________________
If it ain't broke take it apart and find out why.

1983 300SD, 4 speed
1994 C280
1987 300TD wagon
1996 HD Road King

Ride in Peace Eric Peterson, Harley of Macon

I will take a wild guess it is a bad relay, or bad solder joint under a relay. Less likely a bad connection somewhere. Do you have a schematic? At least there shouldn't be any computer involved with it on that car!

__________________
1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra