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ECU - OBDII DTCs and PIDs

GM Lan Single Wire CAN Bus Sniffing

Discuss Diagnostic Trouble Codes and Parameter IDs for the Holden VE Commodore, VEII Series Commodores, and HSV E1, E2, and E3 models

Postby GXP25 » Thu May 17, 2018 10:36 am

Some clarification... better late than never....

0x102e2094, 0x24 opens up RGBS with the HVAC bar at the top of the screen.

0x102e2094, 0x25 opens up RGBS without the HVAC bar at the top of the screen.

Both can be used so that when the "NAV" button is pressed, the HVAC bar gets exposed and hidden while using the RGBS input.

I'm almost done with my code. I'm just having an issue detecting a button press while in NAV/RGBS mode.
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Postby vkfkbr » Mon May 28, 2018 1:00 am

I have a problem about that topic;

For example, when I press "parking lights button" canbus sends that message;

id=1020c040 data= 00 44 04 88 01

but when i send that message to car with arduino, headlights don't work. interior dashboard light turns on, screen brightness of radio dimming but exterior bulp don't give a reaction.

how can I solve that?

2012 Chevrolet Cruze Diesel
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Postby assisrs » Mon Jul 30, 2018 6:33 am

Guys, 4 years ago I bought a VE series 1 and thanks to you (and the forum) I realized that I could upgrade the stereo from the blaupunkt to the IQ.
Well, everything is working fine but there is one thing that I really must to do in the IQ: Unlock the DVD option, since it is grayed out.
I´ve tried to look over the internet , but this is something that seems to be like a government secret - because if somebody starts to talk, this subject not moves forward...
- If this can´t be discussed in the forum, please send me a private message, ok? :-)

Since I´m here in Brazil, the freight costs to Australia are prohibitive, since we are literally into each side of the earth.
Is there a way to a good soul help me with it, please!
I really enjoy the car, having this enabled will make me love it even more.

Thank you so much!
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Postby CommodoreNut » Thu Nov 01, 2018 8:26 pm

foxdie wrote:I think what Jez is trying to say here is yes it can be done and has been multiple times in the past. Your local GM Dealer just confirmed his / her limited competence on the matter. That or they were just trying to deter you because, well, it's taking money out of their pocket in their eyes ;)

There's a lot can be done with the series 1 and 2 head units. There's 3 ways to approach what you're doing;

  1. Change the VIN in the head unit
  2. Trick the head unit into thinking its still fitted in the old car by spoofing data
  3. Completely disable VIN checking

All 3 options are achievable, several of us have already have with time and patience. Its not information we're gonna just give out freely though, not because we're mean but because we all stand by the principle of give a man a fish.

What we're happy to do though is help steer you on your journey. I suggest you start by familiarising yourself with GMLAN doc GMW3110, its an incredibly insightful but daunting read and separates those with dedication and passion from those who are just in it for a quick buck. Even 12 months on, I still find myself referring to it for new information.

The more you demonstrate you know and the more you assist the community, the more doors open :)



I am intrested in learning how to Completely disable VIN checking
On the Holden IQ Systems
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