VOLVO
PDM-B12BA15 - Lock Status LED - Front. General Electrical Failures. Circuit short to battery or open
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?
The driver or passenger door module (DDM/PDM) monitors the LED in the central locking button that shows the locked or unlocked state. The control module has registered that the current on the output is too low when it tries to light the LED. The cause may be a supply cable short-circuited to battery voltage, a break in the supply cable, or poor contact.
Possible causes
- Supply short-circuited to battery voltage
- Break in the supply cable
- Contact resistance, oxidation or poor contact in the connections
What you can do
- 1Check that the relevant fuses are intact
- 2Watch the LED in the central lock button when you lock and unlock the car and note whether it shows anything
- 3Use a multimeter to check that the supply wire to the LED has neither a break nor contact with battery voltage
- 4Check the connections at the central lock button for oxidation and loose contacts
- 5Remedy as needed, then check that the LED shows the locked and unlocked states
Symptoms you may notice1
- The LED in the central lock button does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.