I would check one thing which is the wiring boot on the door, i remember seeing a thread about one of the wire connectors in the harness getting loose and/or corroded. That's the first thing I did when I had erratic PDM behavior. Ended up just replacing the PDM to be honest (the relays soldered to the PCB failed) and everything worked honky dorey. Just check which P/N you have and replace with that exact same part number.
oops.. disregard the first part.. your DDM is definitely dead! same phenomena as mine
Last edited by br0dy; 04-22-2021 at 08:14 PM.
Hers- 04 XC70 2.5T, 300KM
His- 04 S60 2.4, 310KM
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