Hello from SW Florida! Need help T770 Aux problems

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swfcliff

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Joined
Jul 10, 2023
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Hey guys I'm looking for some guidance. My 2016 T770 has been throwing error code M4404 (aux no communication) for a month or so. The machine has never missed a beat. Until the today. Thru the code an my aux switch went dead. Zero movement in the grapple. Also the aux/high flow button seems non responsive. The aux light is lite, but I can not switch to high flow or off.

From my research today I found a few people with the same problem. And the Aux Controller Module seemed to be the fix for them. It was either a bad connection or just a bad module.

Where do I find the aux controller module? An has anyone else dealt with this or a similar problem?

TIA!
 
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