Lost Audio (4200NEC in 2011 Tacoma w/JBL)

Group using the TO1 and TO2 firmware * see specific firmware for full feature list.
vegarosa69
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Re: Lost Audio (4200NEC in 2011 Tacoma w/JBL)

Post by vegarosa69 » Sun Jan 14, 2018 5:18 pm

I check the diagnostic settings and when I clicked on Amp, I got a screen with the following:

System is Retained
System is Not Detected
System is On

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Dara DeGrand
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Re: Lost Audio (4200NEC in 2011 Tacoma w/JBL)

Post by Dara DeGrand » Thu Jan 18, 2018 2:55 pm

I went back through the history of your thread, and the one thing I normally recommend is looking at the 2 pin connector with the light green/red and light green/yellow wires. Those are the data lines that detect and turn the amp on. I have seen cases where there is intermittent no audio because these wires have a poor connection at one of their junctions. This issue normally occurs at the white 2-pin connector, but it could also be present at the harness where those wires connect to the vehicle.

Could we check those when you have audio? See if wiggling them, or messing with them brings the audio back?
Dara DeGrand
Maestro Technical Support Manager
Automotive Data Solutions Inc.
8400 Bougainville, QC
T 514.807.2888
TF 866.427.2999

vegarosa69
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Re: Lost Audio (4200NEC in 2011 Tacoma w/JBL)

Post by vegarosa69 » Sat Jan 20, 2018 3:58 pm

Looks like that could be the problem. I unplugged the green-red and green-yellow wires, reconnected and the stereo came back to life. I hope that it doesn't go silent again.

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Dara DeGrand
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Re: Lost Audio (4200NEC in 2011 Tacoma w/JBL)

Post by Dara DeGrand » Mon Jan 22, 2018 8:45 am

If that's the case, I recommend cutting that plug out of the mix; hardwire those two wires together. If we remove the junction where you have intermittent connection, your 'no sound' issue should go away.
Dara DeGrand
Maestro Technical Support Manager
Automotive Data Solutions Inc.
8400 Bougainville, QC
T 514.807.2888
TF 866.427.2999

Danb
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Re: Lost Audio (4200NEC in 2011 Tacoma w/JBL)

Post by Danb » Tue Feb 27, 2018 5:02 pm

My 2012 Tundra started dropping audio again the other day in firmware 2.4. I just flashed it to 2.5 and we'll see how this goes.

I saw someone mentioning about how much trouble it is to flash, To make it easier to do, after the second time, I've left a USB cable attached to the Maestro and the end sits behind the bottom cubby that's easy to pull out.

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Dara DeGrand
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Re: Lost Audio (4200NEC in 2011 Tacoma w/JBL)

Post by Dara DeGrand » Wed Feb 28, 2018 9:01 am

Dan,
If you want to flash your maestro while it's connected to the vehicle, you must remove all power from it, or the computer will not be able to detect it. You can do this by pulling the radio fuse, unplugging the power from the maestro, or disconnecting the vehicle's battery.
Dara DeGrand
Maestro Technical Support Manager
Automotive Data Solutions Inc.
8400 Bougainville, QC
T 514.807.2888
TF 866.427.2999

Danb
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Joined: Mon Jun 20, 2016 4:37 pm

Re: Lost Audio (4200NEC in 2011 Tacoma w/JBL)

Post by Danb » Wed Feb 28, 2018 9:47 am

I unhook the battery to do it

I do have to report that 5 minutes into my ride this morning on FW 2.5 the audio stopped

2012 Toyota Tundra
Pioneer AVIC 8100 NEX

I don’t get why it was working for 6 months on 2.4 and is now acting up again

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Dara DeGrand
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Re: Lost Audio (4200NEC in 2011 Tacoma w/JBL)

Post by Dara DeGrand » Wed Feb 28, 2018 10:23 am

It is unlikely that it's firmware. We tested extensively and have the amp turn-on issue pretty well nailed down.
Can you please check the data lines i mention in the post below?
Dara DeGrand wrote:
Thu Jan 18, 2018 2:55 pm
I went back through the history of your thread, and the one thing I normally recommend is looking at the 2 pin connector with the light green/red and light green/yellow wires. Those are the data lines that detect and turn the amp on. I have seen cases where there is intermittent no audio because these wires have a poor connection at one of their junctions. This issue normally occurs at the white 2-pin connector, but it could also be present at the harness where those wires connect to the vehicle.

Could we check those when you have no audio? See if wiggling them, or messing with them brings the audio back?
Dara DeGrand
Maestro Technical Support Manager
Automotive Data Solutions Inc.
8400 Bougainville, QC
T 514.807.2888
TF 866.427.2999

Danb
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Posts: 11
Joined: Mon Jun 20, 2016 4:37 pm

Re: Lost Audio (4200NEC in 2011 Tacoma w/JBL)

Post by Danb » Fri Jul 13, 2018 2:47 pm

Dara,

You are correct about that connector. I had no problem from Feb until yesterday. I pulled the radio out and that connector was the issue. I've taped it tight for now. I'll hardwire if it happens again. The connector is a bit flimsy.

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