VOLVO
PHM-B117B12 - Handset supply. General Electrical Failures. Circuit short to battery
System
Phone Module (PHM)
Volvo models this fault code applies to
Applies to the following models:
9 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
What does this fault code mean?
The telephone module (PHM) checks the power supply to the handset. The fault is stored when that supply is short-circuited to supply voltage, and then only hands-free works. The fault lies in the cable that feeds power to the handset from the telephone module.
Possible causes
- The cable feeding power to the handset from the telephone module (PHM) 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
- 2Check that the connector in the handset is fully engaged and that the cable is not chafed or pinched
- 3A multimeter can show whether the cable from the telephone module to the handset touches positive. Without electrical experience, leave this to a workshop
- 4Clear the code and try the handset again. If the fault returns, a workshop should check the cable
Symptoms you may notice5
- The handset does not work
- The handset for individual calls does not work
- The other party cannot be heard or cannot hear you on hands-free, sometimes or all the time
- The other party cannot be heard or cannot hear you on the privacy handset, sometimes or all the time
- Message in the text display and a warning symbol with a text message
What the fault can affect1
- Only hands-free operates
General guidance for car owners. Diagnosis on the car can point to a different cause.