Q: Rear defrost not working on 2004 Mazda Mazda3

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
I bought a used Mazda 3. My rear defroster isn't working. The light doesn't come on in the dash either. I checked the fuse and even switched it with another fuse in the box. Nothing. What else should I look at?
(1) Answer
(1) Comments
Sorry, I don't have a wiring diagram for the rear defroster. I'm sure there's a relay controlling the circuit, FYI, probably controlled by the switch. Find the relay in your owner's manual if you still have it. If that's OK, I'd check for power and ground at the switch and the relay to work on determining where the failure is. You could find an auto electric shop or a Mazda specialist to help you if you're not good at electrical systems.
Here's a directory link for you:
Thanks! I didn't think to check if there was a relay. I think it might be a problem with the switch though. The A/C switch is pretty touchy and it will switch off randomly. If I jiggle the fan speed knob it comes back on. Weird. I think I'll end up replacing the whole switch assembly if it's not the relay.
Didn't find what you were looking for?