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Seeking advice for ECM/PCM on my new to me 2006 Magnum RT AWD

2364 Views 32 Replies 7 Participants Last post by  Magnum_guy, 
Magnum_guy
2
I just picked up a 2006 Magnum R/T with the same issue. Really surprised this is so hard to figure out given the age of these cars, frequency of the issue, and the fact that there is a forum community out there. ( If there was a definitive post on this / FAQ etc I missed it)

I am planning on trying to get a 2007 PCM/ECM core i purchased to get reworked for my 2006. Some say this wont work but I don't see why it would not work....Seems like they changed the design for the PCM without changing the rest of the car..... and I'm guessing it was due to all the trouble they were experiencing since the car was not redesigned until 2008.

From what I have read I think Solo in FL might be a good place to try for a refurb.

www.solopcms.com

Solo PCMS PCM ECM ECU Engine Auto Computers
Solo PCMS is a provider of PCM, ECM, ECU, and Engine Auto Computers
www.solopcms.com
www.solopcms.com

Unless I learn something else that's where I plan to go with mine next week after the holiday.

Any advice on if Solo is the right reburbish place? Also wondering if there is any way for we to configure this my self or go to an independent shop to have that done. Seems like a real scam that these are locked to the vin with no way to do it your self on a car that is more than 15 years old with an active hobby community,

If there is a good definitive thread on stalling / cutting out while driving on the highway etc please point me there. I have an OBD2 code reader and its pointing to lost communications so I think this is the proper next step...
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ImperialCrown
Welcome to Allpar. Always diagnose first. 'Loss of communication' fault codes aren't necessarily because of a failing PCM. Comm codes usually begin with the letter 'U'.
What code(s) are you getting?
Examples:

U0001-CAN C BUS
U0101-LOST COMMUNICATION WITH TCM
U0103-LOST COMMUNICATION WITH ELECTRIC GEAR SHIFT MODULE
U0121-LOST COMMUNICATION WITH ANTI-LOCK BRAKE MODULE
U0141-LOST COMMUNICATION WITH FCM
U0155-LOST COMMUNICATION WITH CLUSTER/CCN
U0168-LOST COMMUNICATION WITH VEHICLE SECURITY CONTROL MODULE (SKREEM/WCM)
U110A-LOST COMMUNICATION WITH SCM - CAN-C
U110C-LOST FUEL LEVEL MESSAGE
U110E-LOST AMBIENT TEMPERATURE MESSAGE
U110F-LOST FUEL VOLUME MESSAGE
U1110-LOST VEHICLE SPEED MESSAGE
U1113-LOST A/C PRESSURE MESSAGE
U1120-LOST WHEEL DISTANCE MESSAGE
U1403-IMPLAUSIBLE FUEL LEVEL SIGNAL RECEIVED
U1411-IMPLAUSIBLE FUEL VOLUME SIGNAL RECEIVED
U1412-IMPLAUSIBLE VEHICLE SPEED SIGNAL RECEIVED
U1417-IMPLAUSIBLE LEFT WHEEL DISTANCE SIGNAL RECEIVED
U1418-IMPLAUSIBLE RIGHT WHEEL DISTANCE SIGNAL RECEIVED

I have no experience with Solo.
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ImperialCrown
5
Any FCM (front control module) or CAN C faults?
The TCM is separate module on a NAG1 transmission?
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The 'possible cause' that is shared by the HVAC codes is the ATC head.
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ImperialCrown
The NAG1 was originally a Daimler-Benz design. Chrysler bought the rights to it and built it at Kokomo. By that time it was a 14 year-old transmission. It was a robust, old-school 5-speed that could handle the torque of the Hemi.
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Mercedes NAG1 / WA580 / W5A580 automatic transmission

Mercedes NAG1 / WA580 / W5A580 automatic transmission by Michael Dickens The NAG1 (WA580 or W5A580) automatic transmission found in many Chrysler products is an electronically controlled 5-speed transmission system with a lock-up clutch in the torque converter. The fifth gear is designed to...
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It had that very thorough & expensive German engineering. Parts were pricy, but durable.
Change the fluid (ATF+4).
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ImperialCrown
It would be illegal Federal emissions tampering for a company to knowingly 'convert' a ECM into an application that it was not intended for (if it could be done at all). The core identity of the ECM ROM chip knows that it is for a 2006. That is burned in and can't be changed.

You are going to buy a 2007 ECM at a dealer to see if it runs? Once installed on a car, the dealer isn't obligated to take an electrical part return. Especially if a VIN is learned.

The tech was trying to stress that it is usually the little, stupid & simple things that can cause stalling. The ECM can cause this, but it is a rarity. Blaming the 'little aluminum box' is all too common.
Valiant was able to get a reaction by manipulating a connector on his that pretty-much concluded that there was an internal, intermittent circuit 'break'.

If you are in Michigan, that may be considered 'salt' belt. Corrosion can be an issue after a few years. I can compile your ground locations, but it may be later today. The engine compartment electrical system is subject to the most brutal 'weather'.
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ImperialCrown
10
I can fit 10 attachments per post, so this will be continued below.
C1 to the ECM shows slight wiring differences between 2006 & 2007. They aren't exactly the same according to the pinouts.
Most interior grounds should be OK as long as the carpet has stayed dry. I have seen loose grounds and grounds compromised by a layer of paint.
Splices can be a weak spot as well. Has the car seen salt?

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ImperialCrown
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ImperialCrown
Was it a 'U' code? Which one(s)? Same as in post #6?
Finding an 'intermittent' of what seems to be an electrical issue inside the PCM can be hit-or-miss.
Send it in with as much information (a link to this discussion, perhaps?) as possible to help them look for the problem.
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ImperialCrown
2
It may run with the 2007 PCM, but be warned, there is no way to make it a 2006. That identity is burned into the PROM upon production. It is a non-volatile memory. A 2006 will always be a 2006.

A software flash update can change operating parameters, but the core identity cannot be changed (even at the dealers).

2006:
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2007:
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