I have a MAZDA PROTEGE 2000 ES. I subscribed to Alldata.com, downloaded wiring schematic for electrical maintenance I'm performing in such car and next to the battery, on the ground side says (in the schematic): GLOW PLUGS ! What is that? Any one knows?

 

Glow plugs would be in a diesel model....They are the diesel equivalent of a spark plug in a regular internal combustion engine.

 

I know, that's my point. Glow plugs are for diesels. But on the wiring diagram, the ground cable coming from the battery negative pole goes thru, what appears to be a fuse block, that on the ALLDATA.com schematic, refers to as "glow plugs" !! What the heck is that? A typo? Doubt it. I'ts weird.

 

Yes..glow plugs would be a typo or written by somebody who thought they knew what they were talking about..unless there is some whacked out engine under there...ya glow plugs are a diesel only thing.