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2004 3500 Manual Trans Conversion (APPS)

Posted

I'm attempting to use a 05-06 pedal mounted APPS. I bought the Timbo Kit and have it wired directly to the ECM.

This is the wiring diagram I came up with:
 

APPS Position   Description         ECM Location

#1                    5 Volt Supply      #33 (ECM C2)

#2                    APPS 2 Signal     #16 (ECM C1)

#3                    APPS 2 Return    #48 (ECM C2)

#4                    APPS 1 Return    #33 (ECM C1)

#5                    APPS 1 Signal     #14 (ECM C1)

#6                    5 Volt Supply     #42 (ECM C1)

However I am getting P2121 & P2128

I have tried two different pedal apps assemblies (APS312)

I have done the re-learn procedure over a dozen times.

ECM has been calibrated to a 2004 Manual calibration.

I have also attached two data log pictures. The first is with throttle off and the second is with throttle fully pressed.

Not sure if I am missing something or doing something completely wrong.

Any advice would be greatly appreciated. Thanks in advance!

 

off.JPG

on.JPG

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Problem has been resolved.

Switched #2 & #5 at the APPS connector from the suggestion of another forum member (cumminsturbofreak).

That fixed my issue.

Thank you for the article Mopar1973Man. If this hadn't worked then I was suspecting a faulty ECM

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Welcome To Mopar1973Man.Com LLC

We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.