O3 Control Head Ignition Issue

[curtisdevault]

I have two XTL5000s that I’ve switched to O3 control heads from O5 to not take up so much space in the new truck. Radios are on constant 12v and the ignition sense cable is hooked to a confirmed circuit that has 12v when the ignition is on.

The radios do not power on when the vehicle is turned on, but I can turn them on using the power button. Then they do turn off when the vehicle is turned off. They are programmed as Ignition Only Power Up, which is the help docs say for an O3 head says they should turn on and off with ignition, ignoring any button press.

Wanted to reach out here in case this is an easy fix. But seems like a firmware mismatch between the radio and control head.

Thanks!

 

[jeepsandradios]

Change programming in the radio to follow ignition ?

 

[curtisdevault]

I have tried the following options that I have available, ignition only, soft power off, and required. None turn on the radio when the ignition is turned on.

 

[nokones]

Have you tried and confirmed the circuit you have the ignition sense wire (Yellow) connected to actually does not have any power when the ignition is off?

 

[jeepsandradios]

The ignition wire on the DB26 J2 is red not yellow. If its turning on and off at the deck then its something in the deck. All of mine turn off this way. Mine are set for soft power off. Ive never seen the described issue myself.

 

[nokones]

For some reason I was still thinking the control head power cable from the O5 realizing now that there is no control head power cable with the O3 thus no yellow wire for the ignition sense.

 

[curtisdevault]

Turns out after some more digging around today that my 800mhz radio turns on/off with ignition perfectly. It's the VHF one that does not and behaves as described in my original post. If I swap the O3 control heads around, it's still only the 800mhz radio that turns on with ignition. I have confirmed that the VHF's ingiiton sense is seeing 12v when the vehicle is on, this also allows it to be powered on manually. Both radios turn off when the truck is turned off.

I'm planning to go to my local Motorola shop after work one day this week, but they've never worked with the O3 heads before.

 

[curtisdevault]

Might have found the issue today. I put both radios into service mode.

The 800mhz radio lists CH Version as R12.00.04 but the VHF radio lists CH Version as R00.00.00. I suspect this is all related. Can anyone provide some guidance on what my local shop needs to do to fix that? They didn't have much to offer when I stopped by last week.

 

[dickie757]

Swapping them back and forth will write/rewrite with Flashzap. Stick with one head and one brick. Unplug the O3 with 0s and remove power and ignition from vhf. Connect O3 and brick, then apply power, see what happens (I think flashzap will start), then apply ignition.

 

[curtisdevault]

Swapping them back and forth will write/rewrite with Flashzap. Stick with one head and one brick. Unplug the O3 with 0s and remove power and ignition from vhf. Connect O3 and brick, then apply power, see what happens (I think flashzap will start), then apply ignition.

Oh shoot I should have came back to read your directions. I forgot to unplug the control head before doing these steps. I'll try again later.

 

[curtisdevault]

Oh shoot I should have came back to read your directions. I forgot to unplug the control head before doing these steps. I'll try again later.

Unfortunately that did not do anything.