USB connection
Hi folks
My camper van has a PDM 15 controlling the electronics which run from the leisure battery. (Internal lights, electric pump on the sink, fridge etc)
The leisure battery failed recently, so i had it replaced. It is now working, but there's no power to anything.
The blockage seems to be the PDM. I've connected to the PDM via the USB, and managed to establish a connection, to try and diagnose the fault. I seemed to be getting somewhere, but then i must have unplugged the USB it at the wrong time, because now the computer says "the USB device has malfunctioned" (or similar error) and when I look on device manager, it has a warning sign associated with that USB port.
When I try to connect the PDM, sometimes it works, and sometimes it seems to work, and then says "device unplugged" almost immediately.
I've restarted my computer, tried cutting the power to the PDM, and tried to use a different laptop. All with no result.
I tried updating the firmware on the PDM, following the instructions on the relevant video, but the new firmware file won't upload to the PDM. I don't know whether this is because of the error in the USB connection, or whether the PDM is just dead.
(The PDM describes itself as being in FW update mode), but won't take an update. )
My question: Is there a way to 'reset' my USB connection to the PDM, so i can continue the diagnostic?
(And then I'll have a bunch of other questions about what I should do next to try and restore power to the van...)
also make sure when your battery was replaced the connections to the pdm were hooked back up. if you get a multimeter test between the main power and ground wire going to the pdm and make sure it reads battery voltage.