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544J Push Switch Control Panel AT320724

DGODGR ยท 2025-09-06 03:25

I have an '04 544J with about 4,000 hours on it. Recently the push switch (p/n AT320724) seems to be having issues. Sometime when we strt the machine, all the little red lights will be on, and/or flashing. When this happens, one can't run the loader. Is this a common occurrence? Can anyone tell me if it's the push switch itself, or if there is something else that is causing this? Thanks!

Replies7
  1. #1mg23612025-09-06 06:45

    We have replaced a few SSM's. Machine serial number? Any codes when you scroll to codes in the monitor? Post any active or stored. There will probably be some 2XXXX.09 codes in there.

  2. #2DGODGR2025-09-09 00:22

    Thanks for the reply. Yes, there are both active and stored codes. See the attached photos.

  3. #3DGODGR2025-09-09 00:34

    Here are the 1st (4) stored codes:

  4. #4DGODGR2025-09-09 00:39

    Four more stored codes:

  5. #5DGODGR2025-09-09 01:01

    Last ones:

  6. #6mg23612025-09-09 04:53

    If the voltage supply and ground for the SSM are OK and remain OK during a wiggle test of the harness, and the "CAN" wires are not damaged or broken anywhere, then your SSM is on the fritz.

  7. #7DGODGR2025-10-07 21:51

    UPDATE: The problem turned out to be the SSM. Replaced it, and now the machine works as it should again. As always, I appreciate the help offered by the HEF community!