VOLVO
PHM-B116A11 - Handset microphone. General Electrical Failures. Circuit short to ground
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) monitors the microphone signal coming from the handset. The fault is stored when the microphone signal is short-circuited to ground, and then the other party cannot hear you when you speak on the handset. The cause is the wire from the handset to the control module, which is in contact with the body.
Possible causes
- The microphone signal wire from the handset to the control module is short-circuited to ground
What you can do
- 1Check 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 has not rubbed against edges or sharp parts
- 3Use a multimeter to check that the wire from the handset has no contact with ground (the body). If there is contact with ground, the cable is short-circuited
- 4Clear the code and test calls on the handset again. If it returns, a workshop needs to check the wiring harness
Symptoms you may notice4
- The handset does not work
- The other party cannot hear you on the privacy handset, sometimes or all the time
- Amber warning symbol and text message in the display
- Message in the text display, on cars with Volvo On Call
What the fault can affect1
- Only hands-free operates
General guidance for car owners. Diagnosis on the car can point to a different cause.