VOLVO
PHM-U102412 - Backup Speaker. General Electrical Failures. Circuit short to battery
System
Phone Module (PHM)
Volvo models this fault code applies to
Applies to the following models:
4 modelsS60 (2011–), V60 (2011–), V60 Cross Country (2015–), XC60 (2009–)
Show models by year and engine (4)
What does this fault code mean?
The telephone module (PHM) follows the power supply to the back-up speaker. The fault is stored when the speaker circuit is short-circuited to supply voltage, which can make the phone and Volvo On Call stop working.
Possible causes
- The speaker circuit is short-circuited to supply voltage
What you can do
- 1Start with the fuses in the fuse box. Their locations are shown in the owner's manual or on the cover of the box
- 2Road test the car and try the phone to see whether the fault remains
- 3With a multimeter you can see whether the wire to the back-up speaker has contact with positive. If you are not used to electrical work, this is a workshop task
- 4If the fault remains after these checks, a workshop should replace the telephone module
Symptoms you may notice4
- The mobile phone does not work
- Volvo On Call does not work as it should
- Text window and warning symbol with a text message
- Message in the text display, on cars with Volvo On Call
General guidance for car owners. Diagnosis on the car can point to a different cause.