O volume control after battery died 2019

[BigLael]

Battery died in after leaving Cobb tuner on…pulled battery and re charged it. Put back in truck and now I have 0 volume control on stereo from dial and from steering wheel. Pulled fuses, reset Battery module, did master reset of sync….still zero volume when dial or steering wheel controls…all the beeps are there and start up tones….is the same battery just charged and showing 14.0V I can’t find anything online about this issue resolution..any help would be great..video attached. 3.3 Sync

 

[JorgesRaptor]

COBB turner just left on as in normal use or were you actively tuning the truck?

 

[BigLael]

Just left on

 

[JorgesRaptor]

I’d swing it by an AutoZone or equivalent and get the battery checked. Even though you’re showing it charged, it still may be bad or damaged internally somehow. That’d be my guess until someone else chimes in..

 

[OEMPlus Raptor]

Disconnect amplifier from the back seat. Pull the power and wait a like 30 seconds before plugging it back in.

 

[HighwaySentinel]

Battery died in after leaving Cobb tuner on…pulled battery and re charged it. Put back in truck and now I have 0 volume control on stereo from dial and from steering wheel. Pulled fuses, reset Battery module, did master reset of sync….still zero volume when dial or steering wheel controls…all the beeps are there and start up tones….is the same battery just charged and showing 14.0V I can’t find anything online about this issue resolution..any help would be great..video attached. 3.3 Sync

Does the volume increase numerically at least? Or does it just stay at zero on the screen no matter how you try to increase it?

 

[BigLael]

Just zero on screen

 

[DMays]

If you hold the power knob down and the forward track button it will reset the sync radio. May be worth a try

 

[HighwaySentinel]

Which fuses did you pull? Have you tried disconnecting the battery for 30 minutes?

 

[BigLael]

Yep battery disconnected, fuses pulled, and forscan reset BMS…the truck is at dealer now will update with what they find!