Originally Posted by
grip grip
I tested the relay and it seems to be working. Well, it's at least clicking when I press the keyfob. I guess I'll repair the break this weekend in the driver's door and then do some more research on the issue. I wish I'd paid better attention when studying electronics years ago.
So we can say that the lock circuit from the relay is failing to operate the pump.
While the circuit from the dash switch does operate the pump. Is there any power through the contact on the relay, that way you’ll know if the failure is upstream or downstream of the relay.