Using ON for ACC OK?

[AnotherOldJeepGuy]

I heard all the time with I was a youngster that leaving the key in the ON position with the engine off would burn out the points.  Well I'm pretty sure nothing made from the 90s knows what points are including my Jeep.  So are there any damaging effects leaving the key ON if I want to have the radio on for a bit but don't want to burn gas?

 

(So  I expect the question to answer here is why?  My ACC position doesn't work.  This happened about 15 years ago when a repair shop put in a new ignition switch, and unfortunately since I don't have a lot of use for the ACC position generally, it was at least 2 years before I noticed this, way too late to take it back to the shop and complain.)

 

(So I expect the second point is why don't I try to fix the ACC position.  Well, in the days when damaging the points was a thing, I had no trouble twisting around under the dash, often with my feet on the headrest, and working under the dash.  The days of working, or even getting into in that position are long gone , and I assume the problem is they put in the wrong switch, or at a minimum put the right switch in, wrong and in either case the need to try to get in there seems to be insufficient to actually do it.)

 

So the easy fix unless there is a bad thing associated with it, is to just use the ON position the few times I would use the ACC position.  Is there anything bad happening doing this?

 

 

[A-man930]

There will be more battery drain in ON, vs ACC, but otherwise it should be fine.   

[watchamakalit]

Sounds to me like they just don't have the switch adjusted  correctly.  If slid too far one way or the other it will work but not quite right. I learned how critical proper adjustment is after replacing my switch.  The slightest misadjustment meant I couldn't start the truck.  Everything felt normal but wouldn't engage the "start" part of the switch. 

[eaglescout526]

This is where I think there are two types of GM ignition cylinders. 
One with ACC position and one without. Wouldn’t be surprised if GM did this. 
 

Anyways having the ACC position doesn’t leave the ECU and other stuff on. It’ll only kick on the radio, clock and blower motor. 

[Ωhm]

2 hours ago, A-man930 said:

There will be more battery drain in ON, vs ACC

 

Additional current draw using the ON position:

- O2S Heater ON

- Chime Module ON

- Emission Maintenance Timer ON

[AnotherOldJeepGuy]

Thanks, I'd like it to work, but since it sounds like there's really no big penalty (other than screwing up my maint timer ) then for the few times I want the radio and not the motor, I'll just stick with the ON position.