Chrysler NGC4 (MPC5554MZP80 CPU)

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AngelMarc
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Re: Chrysler NGC4 (MPC5554MZP80 CPU)

Post by AngelMarc »

That should do. Planning to try tomorrow evening.
Shouldn't have more than transmission and lost communication DTCs, and O2 sensors, because no exhaust.
Seems there's 5 volt supply to engine from trans connector too... glad I kept that.
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Last edited by AngelMarc on Sun May 31, 2026 5:01 am, edited 1 time in total.
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AngelMarc
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cars: A CB450 running to 8,000RPM with a P59.

Re: Chrysler NGC4 (MPC5554MZP80 CPU)

Post by AngelMarc »

AngelMarc wrote: Sun May 31, 2026 12:42 am
AngelMarc wrote: Sat May 30, 2026 5:49 am Sorting out wiring. I think I have everything but the pedal wired up as well as I want,
Nope, chopped this one off completely... damn it.
Anybody have some where/way I can double check this one?
This part bugs me
Capture.PNG
I couldn't find a wire that made sense for where it would have originally went. These pinouts already had some errors, this might be another error.
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AngelMarc
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cars: A CB450 running to 8,000RPM with a P59.

Re: Chrysler NGC4 (MPC5554MZP80 CPU)

Post by AngelMarc »

Wouldn't command the starter.
Didn't have PRNDL, Sorted that out.
Capture.PNG
(Closed meaning connected to ground... they didn't specify.)
Still won't command starter. I'll have to wire up an OBD port and put the scanner on it.
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AngelMarc
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Re: Chrysler NGC4 (MPC5554MZP80 CPU)

Post by AngelMarc »

Apparently the brown/orange is an output from the engine harness, to pedal.
https://charm.li/Dodge%20and%20Ram/2009 ... mation%29/
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AngelMarc
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Joined: Sat Apr 08, 2023 11:23 am
cars: A CB450 running to 8,000RPM with a P59.

Re: Chrysler NGC4 (MPC5554MZP80 CPU)

Post by AngelMarc »

Found the answer
Code B2101
https://www.chryslerminivan.net/threads ... lt.180326/
Run/start pin on WIN module is an output to a specific pin on TIPM, pin 30, right next to the 3 CAN bus connections on TIPM C7. Of course, that's a wire I snipped flush, thinking it was a low current output FROM TIPM to something else; so I have to pull the connector apart to fix that. Just held the wire in place for a quick test. Cranks now.
Now I need to see about these other circuit high codes.
Pinout says black connector, it's red.
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AngelMarc
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cars: A CB450 running to 8,000RPM with a P59.

Re: Chrysler NGC4 (MPC5554MZP80 CPU)

Post by AngelMarc »

Has MAP sensor code, but it runs.
https://www.youtube.com/shorts/1XKVfl2VhxY
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Gatecrasher
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Re: Chrysler NGC4 (MPC5554MZP80 CPU)

Post by Gatecrasher »

That's pretty wild to see it bouncing around on the strap like that. :lol:
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AngelMarc
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cars: A CB450 running to 8,000RPM with a P59.

Re: Chrysler NGC4 (MPC5554MZP80 CPU)

Post by AngelMarc »

I expected it to be louder too. Was a crazy quiet vehicle.
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AngelMarc
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Re: Chrysler NGC4 (MPC5554MZP80 CPU)

Post by AngelMarc »

So apparently these ECUs report "circuit high" codes for anything that's simply unplugged, instead of properly informing the tech/owner about an open/unplugged circuit.
MAP sensor latch is broke, so it just wasn't plugged in.
Last edited by AngelMarc on Thu Jun 11, 2026 8:34 am, edited 1 time in total.
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AngelMarc
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cars: A CB450 running to 8,000RPM with a P59.

Re: Chrysler NGC4 (MPC5554MZP80 CPU)

Post by AngelMarc »

And apparently, if you have a giant intake leak where it struggles to bring idle down, it'll deactivate an entire bank of injectors/coils. I cut the bastard EGR tube and that fell off, 1.5 inch hole.
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