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View Full Version : Oddity w/ Subwoofer failure & CEL



TooleBox
11-27-2004, 04:51 PM
A couple weeks ago, my sub stopped working in unison with the car throwing a CEL.

the sub then would click on and off and on and off...

as for the CEL, i plugged in my code scanner and it read "o2 sensor #2 not heating"

so i reset the code and all was well for another couple hundred miles... all the while the sub is turning on and off.

i finally got around to checking all the wiring and all was well. a couple days later.. CEL comes back again with the same code (this time i didnt reset it).

I investigate further and find that the fuse that is right off the battery terminal had not popped, but the plastic housing around it had melted causing an intermitant signal...

So i go to the store, buy some new fuses and swap out the melted one... now oddly, not only did changing that fuse fix the sub. It also fixed the CEL!

After i put the new fuse in, the CEL turned off, I plugged in my code scanner and there were no longer any error codes!

now if ya ask me thats really strange.

is this some sort of shady engineering to get suckers to have to pay uber bucks to the dealership when the CEL appears? Cross wire it so that the same fuse that controls the sub is also the same fuse for the o2 sensor heater on sensor 2?

what do ya think?

terbow
11-27-2004, 08:42 PM
smell that? smells like conspiracy to me.

but that is very odd. at least u got it fixed though.

1sty
11-29-2004, 01:47 AM
BE one hell of an accompishment if there was as the ECU would have to be monitoring the sub amp by RF. It has no connections to it at all. What that short might have been doing is screwing with the batteries voltage and thus all of the voltages form all of the sensors in the car. The O2 sensor is one of the more sensitive so I could see it tripping of the battery was running low periodicly form the amp bursting on and off as the battery tired to over power the blockage.


Its a long shot but just my guess. My high amp alternator used to piss off my sensors royaly except it was from overpowering them. gotta love a 15.5 volt charge (cool)

TooleBox
11-29-2004, 09:34 AM
makes sense