Way to determine which RPO codes can be adjusted without GM?

[Odii]

The way i understand it I need a Tech 2 scan tool to update RPO codes, but there are some that require GM software subscription (go to dealer).
is there a way to determine which codes would require dealer intervension before investing in getting a scanner?

Here are my RPO codes

@MassHoe04's post > here < was pretty helpful but im not sure if the things i need/want to adjust would be things i can do myself anyhow, and I'm trying to be smart with my $

 

[Odii]

found a really cool thread > tech2 info < here on the boards (a sticky that i somehow missed)

 

[Joseph Garcia]

You use the Tech 2 to troubleshoot for the most part, 95+% of the Tech 2's usage by you.

There are modules that need to be re-programmed, if you replace them, and a Tech 2 or similar bi-directional scanner and a subscription to GM Techline Connect will be required to do the re-programming.

 

[Odii]

Thank you! I appreciate your insight

any idea for this specific example: the disable of the DRL can be un-deleted with or without GM techline connect?

 

[Joseph Garcia]

I have not seen anything in my Tech 2 that would eliminate DRL. Other folks may chime in on this.

 

[Fless]

Looks to me like the OP is trying to re-enable inactivated (PPV) DRLs, to activate them.

I *suppose* it could be done by programming the BCM for the functionality of a VIN that had all other RPO codes the same, but that's just a guess.

 

[Odii]

Looks to me like the OP is trying to re-enable inactivated (PPV) DRLs, to activate them.

I *suppose* it could be done by programming the BCM for the functionality of a VIN that had all other RPO codes the same, but that's just a guess.

Yes, thank you - I think you're picking up what I'm putting down.

my apologies if i don't quite know how to articulate what I'm trying to do - a smidge new to this, but i'm a quick study.

there are some things currently disabled - from what i understand due to the RPO - and I'm trying to determine if this is something I could enable them with a Tech 2 or if this is something that would need a dealership (or place with gm subscription).

I had the likely incorrect assumption that the rpo codes could just be toggled "off" if they were "on" and/or vice-versa, but it sounds like perhaps that assumption is underappreciating how those work.

 

[me51]

This works to some extent with other GM vehicles, but not with the SUVs/trucks it seems.

Here is an example where you can change options with the Tech2: http://www.stopforce.com/RPO.html

 

[Doubeleive]

Thank you! I appreciate your insight

any idea for this specific example: the disable of the DRL can be un-deleted with or without GM techline connect?

if it was a Canadian vehicle then I believe the DRL on/off function could be enabled by simply purchasing a USA light switch. In any case turning off DRL's only works per key cycle. as soon as you shut it off and restart you would have to repeat the procedure.

 

[Doubeleive]

other than that adding functionality such as turn signal mirror or nav radio, etc requires getting all the proper equipment installed and then programming it on with a tech2 or similar tool which requires a subscription $40 for 2 years per vin

 

[Fubar0715]

FWIW, I have a SSV and was under the same assumption that features could be toggled on and off through the BCM. In reality, a VIN with same or improved "features" would need to be programmed into to enable missing items. Another side note about the PPV/SSV is some of the civilian features are disabled completely and missing wiring harness - my example is on my truck, I got no wiring for the fog lights.

 

[Odii]

FWIW, I have a SSV and was under the same assumption that features could be toggled on and off through the BCM. In reality, a VIN with same or improved "features" would need to be programmed into to enable missing items. Another side note about the PPV/SSV is some of the civilian features are disabled completely and missing wiring harness - my example is on my truck, I got no wiring for the fog lights.

thanks, I appreciate that

so far nothing is a desperate issue --- once console and door panels are installed, will take it for some maint and inspection

don't have speakers/radio/horn working yet, but those can be "later" problems.

the DRL is a bummer, but not end of the world - I didn't think to check for the fog lights working or not, i should do that

 

[mikez71]

btdieselworks.com can program the drl for you. There are a few other lighting options (approach, exit, fade times and curves) I bought their programming to disable auto doorlocks. My DRL off now.

A Tech-2 is still very useful too, found out my tilt sensor was setting off my alarm randomly. found a GM bulletin about tilt sensor being mounted on the foot airduct which can deform with temperature tripping the sensor.

 

[mikehooo]

Make sure E brake is ALL the way off & check fuse this may get your DRL working again.