VOLVO
PDM-U019900 - Lost Communication With "Door Control Module A". General Failure Information. No sub type information
System
Passenger Door Module (PDM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS60 (2011–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–)
What does this fault code mean?
Communication between the control modules takes place over CAN, a standardised serial communication method. The driver door module (DDM) should always be reachable by the other modules. If communication with it is disturbed or stops, the code is set when the ignition is switched on. The code indicates trouble on the network as a whole rather than in one module.
Possible causes
- No power supply to the driver door module
- Open circuit in the ground lead to the driver door module
- Open circuit or short circuit in the CAN wiring
- Contact resistance, oxidation or poor contact in the connections
- The driver or passenger door module is not intended for this car, for example a used control module with different software
- Several codes for communication faults in the central electronic module (CEM) point to a common fault in the CAN network
What you can do
- 1Read and clear the code, then start the car to see whether it comes back
- 2Check the fuses in the fuse box and make sure they are intact
- 3Check the connectors at the driver door module for moisture, oxidation and loose contact
- 4If you have diagnostic equipment, read the codes in the central electronic module (CEM) first, as they show whether more parts of the network are affected
- 5Have a workshop measure and trace the CAN wiring and the ground lead; do not replace any control module unless tracing shows that it is damaged
Symptoms you may notice5
- Electric adjustment of the mirrors does not work
- Folding of the mirrors does not work
- The electric window does not work, works with reduced function or works incorrectly
- The child lock in the doors does not work
- Locking and unlocking with the central locking does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.