TransAm12sec

Has anyone replaced the relay on the defroster circuit board? Mine went out a few weeks ago.

56ND12-W

wssix99

iTrader: (5)

I'm interested to see your replacement. $2.23 + shipping gets you a new one from Mouser.

The common problem is a bad circuit breaker. Did you also replace that?

TransAm12sec

I replaced the entire heater control switch setup, and the defroster now works. This is the original board after 57k miles.

I'm in the process of talking to people to determine if the relay or integrated circuit is bad on the board. So far we've played around with a multimeter without power flowing through the board, next step is to test it with power.

Here's the data sheet on the relay.
http://search.fujitsu.com/us/search....TF-8&access=p&