The E-Z Command Control Center system can run the locomotive and activate or deactivate functions mapped to F0 through F8.

If the locomotive has a factory installed decoder it is likely one made by ESU. You cannot take advantage of most of the ESU decoder features and functions using the E-Z Command Control Center. You cannot even reset the decoder.

You can try:
Click Here for E-Z Command Control Setup and Programming Instructions

Scroll to page 3 and follow instructions in section REPROGRAMMING DECODERS WITH PREVIOUSLY ASSIGNED DIGITAL ADDRESSES

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E-Z App does not use DCC so no help.

The Sound Value decoder factory installed includes three whistles -- selected using CV 115

N&W Class J No.611, which is factory default
Southern PS4 
Hancock Step Top 3-Chime

The decoder is a SoundTraxx OEM Tsunami decoder (not to be confused with the Bachmann Sound Value made by SoundTraxx) with features set to Bachmann specifications.

https://soundtraxx.com/content/Reference/Factory-Installed/Bachmann/Spectrum/on30_0-4-0porter.pdf

The use the above as index to the following.  These manuals are for the Tsunami decoder and mostly can be used with the OEM decoder made for Bachmann

https://soundtraxx.com/content/Reference/Manuals/Tsunami/tsunamisteam_users_guide.pdf
https://soundtraxx.com/content/Reference/Manuals/Tsunami/tsutechreference.pdf

Bach-man,

Which manufacturers for DC and DCC large scale sound systems have been given a heads up and necessary information about the electronics socket and wiring in this new 4-6-0?

This may not matter to you if you after toy not prototype look ----  most types of railroad bridges do not have a roadbed like E-Z track.

Volume control ---  the round component with slot.  Very careful turn using flat blade screwdriver.

Hopefully drive belt is root of the need to push to get to run issue. But also examine for a split in the drive axle gear.

Quote from: Dbernier1974 on April 05, 2021, 07:54:28 AM
. . .   The chassis by itself rolls but has a slight wobble, and I wonder if this may be the cause of the motor revving high?

Wobble usually is do to binding or unlevel track rail and very rarely wheel not round. Bind can be caused by lack of lubrication, bent rods, to more complex to fix  wheels out of quarter.

Before you installed decoder -- Did the locomotive run and have lights using DC power?

If you did not try, do so now, unplug the decoder and reinstall the Dummy Plug in the socket. Using DC power pack,  run the locomotive and look for lights.

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Per my tech notes, the pin-1 socket is on the left making the pin-8 on right closest to the front of the tender. However, locomotive should still run if you did not plug in the  decoder with correct alignment but you will not have lights.

Click Here exploded view diagrams

Download the free version of AnyRail and use it to answer your question and other questions not yet asked.

https://www.anyrail.com/en



Track radius is measured from the center line of the track to the center of the curve.

The Bachmann 44932 or 44902 E-Z Command Control Center cannot be used with the MRC AD491 Walk Around Handheld controller.

Quote from: jward on March 20, 2021, 02:12:41 PM
I may have to get one of those. If I do, I'll have all three generations of the Zephyr.

Anyone considering a Digitrax DCS52 Zephyr Express; be sure you are getting one with the latest firmware update and familiarize yourself what is required to update firmware.

Q: I have the Dynamis with the Probox. I know there are 20 functions I can directly access. I have some engines that have more the 20 Function keys. Is there some way to access them?
A: No

Q:Also I have the reference showing the CVs for my engine (N scale DD40AX) but it is not clear what many of them are for and nothing shows what the values are and what setting a CV to a value actually does or what the values represent. I caught one note here where it said setting CV115 to 1 of 3 numbers changes the horn sound. Where does that info come from?
A: Click Here For the supported CVs (Configuration Variables) and their factory default value. If you encounter any discrepancy between the decoder and the document,  it is likely a misprint in the document. So ask.

No User or Technical manual available for the decoder. The Sound Value decoder is not a Tsunami but similar.  You will have to adapt
Click Here Tsunami Diesel User's Guide
Click Here Tsunami Diesel Technical Reference