Chrysler NGC4 (MPC5554MZP80 CPU)

[Tazzi]

This is true. A good start would be using Getrags file and start pulling it apart in Ghidra, assigning RAM/registers and start pulling it apart.

Depending on its strucutre, youll find the main OBD handler in the boot or OS (Or both) and can start back tracking PIDs/Security/routines from there.

[Gatecrasher]

MPC5xx (Power MPC) and MPC5xxx (Qoriva) are different families of chips.

The CPU model name in title is what I read myself after opening one up. NXP says it's "full PowerPC compatible". Or am I clueless and "power architecture" doesn't mean "powerPC".
https://www.nxp.com/part/MPC5554MZP112
Capture.PNG

I was just clarifying what Antus said when he mentioned them being based on the same SDK as the MPC555. They're not. They're related in the sense that they use the PowerPC core, but that's about it. The MPC5xxx family is the next generation after MPC5xx. Your screenshot even mentions that in the last line. It offers a migration path from the MPC500.

[AngelMarc]

Make cloning work and I'll buy YOUR J2534 dongle. Going to openly commit to that. Assuming it's not like $200, I haven't checked.
I need something to replace my OBDLink SX anyway. It got lost or stolen.

[Tazzi]

Make cloning work and I'll buy YOUR J2534 dongle. Going to openly commit to that. Assuming it's not like $200, I haven't checked.
I need something to replace my OBDLink SX anyway. It got lost or stolen.

Thats not my job there to make cloning software to various manufactures.

Youll need to lookup suitable software capable of doing that, or see if they support J2534 like the bitbox options I noted.

[AngelMarc]

oh.....
I refuse to pay for flashing software.

[Tazzi]

I do believe devs that have spent serious R&D time to make it even possible to flash modules should be paid for their work (If its not a opensource/freeware project).
Without them, there would be nothing.

So we would have to agree to disagree on that one.

[AngelMarc]

Why I offered to buy your dongle instead of whatever random J2534 dongle.
And I sure would prefer it being open source.

[AngelMarc]

Grabbed a couple more for $1 each at scrap yard.
2007 Vin# 2a4gp54l67r272459
and
2010 Vin# 2d4rn4de4ar426161
Swear they were both 3.3, but vin decoder says one was a 3.8.

[AngelMarc]

Might have just bought 2 NGC3s.
I'll have to open them up and see.
Good news there is
https://www.youtube.com/watch?v=XEPn9OY1oBM
https://www.youtube.com/watch?v=TpshQ5zQwbQ
I've been wanting a Ulink NT anyway.
The 2010 had the "node ignition" which I think means CAN bus start signal.

node.png

2009 Journey.PNG

https://connectorrepairkit.mopar.com/
The 2007 had a classic ignition switch.

Capture.PNG

[AngelMarc]

Looks like I have
NGC3 (2007) SC511505MZP40 CPU

NGC3cover.jpg

NGC3PCB.jpg

NGC4 (2010) MPC5554MZP80 CPU

NGC4cover.jpg

NGC4PCB.jpg

NGC4A (2011) MPC5554MZP112 CPU

NGC4Acover.jpg

NGC4APCB.jpg