Hey guys first time poster here.

I just installed some JL C2 component speakers into the front of the truck. I have basic sound 7 speaker system. I chose to get at the wires behind the ACM and mount the crossovers back there. Everything went great. Soldered connections and nothing was shorted. When I tested it the passenger side came to life but unfortunately the driver side did not. Both tweeter and woofer.

I have tested checked and triple checked everything that i can think of but i cannot get the ACM to send voltage to the front drivers side of the truck. But if you flip the wires from the pass side to the driver the speakers work fine.

Things I have checked:
i have checked OHM resistance and both pass and drivers side are 4 OHMs
Swapped wires from pass to driver and the speakers work. so its not bad speakers.
I can get all channels to run by connecting wires to one crossover with input coming from pass side wires on the back of the acm
Negative taken off battery to try and reset the ACM
Disconnected and removed new speakers and tried the stock ones again but no dice.
I even had ford come out and do a recall SYNC update to the most current version.

If you guys have any ideas it would be much appreciated. Thanks in advance.

 

What Year truck and trim and what wires did you connect to behind the ACM?

 

Where, where is the reset button on the door trim? I want to see a picture of that. Lets see the pic.

 

So it isn't the speakers. It has to be your connection behind the ACM or the factory wireing? Did the driver door work before you started the swap?

 

2020 XLT 7 speaker. Not equipped with B&O.
Driver front wires are white(+) pin#22 and white brown(-). pin#10. on the connector. I used the factory wires to the woofer to power that and ran new speaker wire to the tweeters in the pillars.

I get 4.5 volts coming out of the pass wires but no voltage coming from driver front wires.


Artsr2002 I'm not exactly sure what you are asking. Only mention of resetting was disconnecting the battery.

Wyo11Scab Yes the speakers worked before installing the new crossovers and speakers.

 

Your wiring does seem to check out. You did check for a connection from the door wires to the ACM and got 0 (or close to it) ohms of resistance?

 

Thank you for the diagrams.

Correct with no speakers connected i have a 0 ohm resistance. With the woofer and tweeter connected it has 4 ohms. I've tested pin outputs with the acm hooked back up and get 0 volts. But on the pass i get around 4.5 or so.

I was convinced that it was going into protection mode for some reason but it just seems like that channel died on the acm......

 

Seems someone's post was deleted so now my post looks completely out of place here.

 

But I would love if the magic reset button was there. That would completely solve my problem I think! I'm sure i would've found it by now.