VOLVO
PDM-B12BA11 - Lock Status LED - Front. General Electrical Failures. Circuit short to ground
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 door module on the driver or passenger side 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 high when it tries to light the LED. The fault comes from the supply wire being short-circuited to ground, and then the module stops powering the LED.
Possible causes
- Power supply cable short-circuited to ground
- Moisture and/or oxidation in the connections
What you can do
- 1Check that the relevant fuses are intact
- 2Lock and unlock the car and watch the LED in the central lock button to see whether it shows the right state
- 3Use a multimeter to check that the supply wire to the LED is not short-circuited to ground (the body)
- 4Look for moisture and oxidation at the connections to the central lock button and remedy them
- 5Remedy as needed, then check that the LED shows the locked and unlocked states
Symptoms you may notice1
- Switch indication does not work
What the fault can affect1
- The control module stops powering the LED in the central lock button
General guidance for car owners. Diagnosis on the car can point to a different cause.