Did you have the units checked before leaving the store?
I wouldn't be too surprised to see two parts store units
that were bad, even from different vendors. That's why
for electronic parts I go pure original Toyota parts only.
There's a reason why they offer a 'lifetime' warrantee
on their parts at very low prices at the parts stores.
You really do get what you pay for and peace of mind is,
well...priceless. <img src="/forums/images/graemlins/smile.gif" alt="" />

Regards,
Indy