Hoping joatmon will see this, but I welcome any responses to my question. Would a bad heater relay (directly above the glove box) be the cause of no power to the 10amp fuse found by the steering column? I have no power (voltage) going to the 10amp fuse, car on or off, nor am I getting any power to the blower. Before I pull the relay box holding the 3 relays above the glove box, wanted to see if that's a possibility or should I be looking elsewhere for no power. Oh and yes the relay in the engine compartment is good. Thanks.
pulled the relay and tested it but online sources said reading should be between 50-120 ohms. Anything more or less should be discarded. I got a reading of 166 ohms so safe to assume it's bad?
Best bet is to put a 12 Volt bench source to the coil and see if the relay works mechanically. Check the contacts both relaxed and energized and be sure they change state.
If your ohmmeter isn't calibrated, don't trust it reading at that level. Also, resistance of copper is temperature dependent.