Rear Speakers not working

[trdproven]

Hello,

My rear speakers are not working and even my liftgate speakers.

I tried turning on and off the party mode and messing with the settings on the head unit but no sound.

Could it be a relay or amp?
Could it be the party mode switch itself?
head unit?

Or could it be the rear door speakers got unplugged, how does this work? I know i got the rear door panels worked on recently however, even if the rear door speakers got unplugged shouldnt the liftgate speakers still work? I'm pretty sure I didn't unplug the harnesses.

Please help, i know taking the rear door panels off just to check are a pain to put back.

 

[trdproven]

so I pulled the rear panels, nothing is disconnected.

Party mode still works but only for the front.

this is the only weird thing i saw behind the party mode switch, a disconnected harness and I pulled out all the center panels and could not find where to plug it in. its the harness on the left. any ideas.

My best thoughts is that the rear speakers should work with party mode off so it tells me a few things. Either I am not getting power to the rear because the relay is not kicking on or the switch is not working. I am only doubting it is the rear amp because shouldn't the rear door speakers at least work? This thing just happened overnight and showed no signs of issues leading up to this point.
<a href="http://s74.photobucket.com/user/frankprado/media/IMAG0471_zpsgpbvypgl.jpg.html" target="_blank"><img src="http://i74.photobucket.com/albums/i248/frankprado/IMAG0471_zpsgpbvypgl.jpg" border="0" alt=" photo IMAG0471_zpsgpbvypgl.jpg"/></a>

 

[beee_24]

Same problem

I have the exact same problem an tried everything I no to do. Where is amp n 2013 4 runner ?

 

[tigger]

Did anyone change a stereo setting and move the fader to the front?

That harness is probably to a switch you don't have. Something pre-wired from Toyota.

 

[tigger]

Hello,

My rear speakers are not working and even my liftgate speakers.

I tried turning on and off the party mode and messing with the settings on the head unit but no sound.

Could it be a relay or amp?
Could it be the party mode switch itself?
head unit?

Or could it be the rear door speakers got unplugged, how does this work? I know i got the rear door panels worked on recently however, even if the rear door speakers got unplugged shouldnt the liftgate speakers still work? I'm pretty sure I didn't unplug the harnesses.

Please help, i know taking the rear door panels off just to check are a pain to put back.

I know that if you disconnect a speaker in the hatch, you will lose hatch and door speakers. It may be the same for the rear doors. If you had recent work on them, that is where I would start. Make sure the speaker plug didn't fall out (if you have stock speakers) or come loose and no wires are pinched.

 

[beee_24]

No sound

I tried everything faded from front to rear sound n front speakers but no sound from rear and hatch speakers. Tried party mode on an off

 

[tigger]

I have the exact same problem an tried everything I no to do. Where is amp n 2013 4 runner ?

If you have the JBL system, it's in the rear quarter panel on the sub enclosure. The non JBL is in the head-unit.

 

[beee_24]

Not sure...

Not sure how to tell if I have jbl system don't think I have it I see Toyota p1850 on front of radio. If it's n head unit is it a fuse that's blown or is it internal and have to buy a new head unit ?

 

[flyinhawaiian01]

P1850 is NOT a jbl head unit, its the standard stereo, so amp is built into head unit.

You didn't say what year your 4runner is, nor if you bought it new or used. You also didn't mention if this is something that just started or you've never had rear speakers from day one.

Perhaps someone before you wired something else into the vehicle and when they sold it they just simply pulled their stuff out, leaving the rears dead.

 

[thegipper]

I would use a volt meter and check to see if there is power to them or not.

 

[Auntie Soshul]

It could be that the plug for the rear speakers is disconnected. It's a 5-terminal plug on the back of the head unit. Looks like this:

 

[beee_24]

Pulled hd out

It could be that the plug for the rear speakers is disconnected. It's a 5-terminal plug on the back of the head unit. Looks like this:

View attachment 197026

Just pulled head unit out every thing was good

 

[beee_24]

Pulled hd out

It could be that the plug for the rear speakers is disconnected. It's a 5-terminal plug on the back of the head unit. Looks like this:

View attachment 197026

Just pulled head unit out every thing was good. But I unplugged all the harness goin n to headunit why didn't it reset everything still set the way I setup I got hooked back up still same no sound from rear

 

[beee_24]

Info

P1850 is NOT a jbl head unit, its the standard stereo, so amp is built into head unit.

You didn't say what year your 4runner is, nor if you bought it new or used. You also didn't mention if this is something that just started or you've never had rear speakers from day one.

Perhaps someone before you wired something else into the vehicle and when they sold it they just simply pulled their stuff out, leaving the rears dead.

2013 Toyota 4 runner sr5 bought brand new an all 8 speakers has worked just notice few days ago that front works but rear doesn't

 

[4Rager]

I can tell you from my experience installing speakers in my rear doors that the hatch speakers are connected to the same wiring circuit as the rear doors. When I intercepted the wires for the rear speakers directly behind the head unit and connected them to my amp, both the rear doors and tailgate would play. This would lead me to believe that your problem lies between the rear door speakers and the HU. This would suck, but could it be that the rear L & R channel of the factory amp in the HU burnt out?

 

[Hawaiian4runner]

Just pulled head unit out every thing was good. But I unplugged all the harness goin n to headunit why didn't it reset everything still set the way I setup I got hooked back up still same no sound from rear

You mind using a little more punctuation? You know, the dot they call a period.

 

[beee_24]

Can amp be

I can tell you from my experience installing speakers in my rear doors that the hatch speakers are connected to the same wiring circuit as the rear doors. When I intercepted the wires for the rear speakers directly behind the head unit and connected them to my amp, both the rear doors and tailgate would play. This would lead me to believe that your problem lies between the rear door speakers and the HU. This would suck, but could it be that the rear L & R channel of the factory amp in the HU burnt out?

Is it hard to fix the amp n side headunit that's fried ?!

 

[4Rager]

Is it hard to fix the amp n side headunit that's fried ?!

Usually that would mean it's dead. That being said, it's single DIN and easy to replace. In my last vehicle I had a Alpine single DIN head unit that I got for $150-180 and it was great. It will be way louder than stock and will have and aux stereo input and a USB port which can charge your phone and control it via the head unit (if you have an iPhone). If your stock HU is in fact dead, it would be a great upgrade for less than $200.

Based on what you've done to diagnose it so far, I don't know what else you can do. If all the wiring is connected and adjusting the fader etc. on the head unit produces no results, that leads me to believe the HU is crapping out but I'm not gonna make that call over the internet. When you set the fader all the way to the rear and turn it up loud, do you hear any static from the speakers? That would at least mean they're getting power and the wiring is ok.

 

[aodjao]

Hello guys, sorry to barge into this conversation. Another easy and hopefully a solution to this dilemma would be to reset your head unit, by unplugging the battery.

 

[flyrv9]

What happened to the first guy? Anyway, you both are just guessing and trying things at random. This is not the way to troubleshoot this problem. I would first identify for sure what system components I had. Then I would read the manual to know for sure how the system works and what switches do what etc.

Then I would get a wiring diagram for the system I had and check continuity from the head unit plugs to all the speakers; taking into consideration the positions of all switches and other circuit components involved. Also check for shorts to ground for each wire (you could have a wire chafing on structure somewhere). Straight wire resistance should not be more than an ohm or two. Be sure to zero your meter. Pay close attention to where any previous work or mods were done.

After eliminating all the wiring, connectors, switches, fuses, etc. I would look into the head unit.