[tdellaringa]

Thanks to suggestions, I bought the OBDLink MX+ to check my engine code, and it ended up being P1070, manufacturer defined. The diagnostic lookup site gave me nothing specific to GM/Cadillac. Searched the code here, and found it pop up in a thread about a class-action lawsuit on the tranny. It seems like some consensus is that a flush may fix the problem. (Thread linked below). Wondering if anyone has had this and can help me understand if that is what is going on here, or do I need to suck it up and bring it in to the dealer?

class action for transmission

https://www.autoblog.com/2019/04/25/gm-transmission-class-action-lawsuit/

www.cadillacforums.com

 

[tdellaringa]

Yeah, I tried to select GM/Caddy on that page and it gave me the same thing. I'm not really a car guy, I didn't get most of what you said :|

Sounds like this is the action I need to take:

Totally get coolant temp up, clear that DTC and then see if that code trips again and if so must post the full freeze-frame and with the OBDWIZ software that comes with OBDLINK MX+
report what the LTFTs, O2 sensors, coolant temps report

How do I get the coolant temp up? Do I just drive around, come back and use the dongle/app to clear the code? (I don't see how to do that in the quick start guide, which is all that came with it.)

 

[tdellaringa]

Yeah I think so - still haven't gotten around to this, hope later today. I think I can do some of this on the app, I will try. (I also have a Mac, no windows.)

 

[tdellaringa]

I was finally able to get back to this today, but I just cannot seem to clear the codes. I figured out I need to press the start button without putting my foot on the brake to enter acc mode, which I did. But tapping clear codes doesn't work. It goes through the motions, but nothing happens. The device is connected and communicating. Not sure if this is a product issue or a car issue. This was the screen:

I did grab all the freeze frame screens at least from the code. Not sure if this helps. Not sure what to try next other than bringing it in?