Driver's rear door speaker inop.

[dhanna6]

Never had a vehicle with a factory amp. Driver's rear door speaker isn't working. How can I test the speaker and amp to see which is bad?

 

[MAY03LT]

Statistically, a bad speaker and damaged wiring in the door harness are the most likely causes.

Turn the radio on, and wiggle the wiring harness that goes into the inoperative speakers door.

If that doesn't work, swap in a known good speaker. If you don't have an extra speaker laying around, you can swap the l/r and r/r speakers. It's a little more work to do it this way, but it doesn't cost anything to do.

If swapping speakers doesn't work, I do continuity tests from the speaker leads to the radio (non bose) or the amp (bose).

 

[tbuckalew14]

I had an issue my rear speaker before...Water had gotten into my door panel and killed it.

 

[Mark20]

R/R speaker is out in mine. Been meaning to take a look at it but it always manages to slip my mind.

They say the first sign of old age is that you... umm... now what was it??? Oh yeah, forget things.

 

[dhanna6]

I've gotta look at it. The phasing is horrible with one speaker not working.

 

[TollKeeper]

Same problem, with the same speaker. Waiting for the after the holidays sales, and hoping to do something with those rear speakers.

 

[fadyasha]

Don't mean to hijack but I still am lol, Today I noticed both Rear speakers aren't working, Tried fading back and forth no result except on front. I've heard the Trailblazers have crappy speakers and do eventually fail and at times both together!

Just wish I'd realized this before my family got back! No way I can get to it now. Curious to know though, are there any fuses related to this? Maybe can check that, before going and swapping another speaker to see if that works.