VOLVO
PHM-000F - Handset loudspeaker. Signal too high / Signal missing
System
Phone Module (PHM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
5 modelsC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013), XC90 (2003–)
What does this fault code mean?
The phone module (PHM) registers either a break in the signal to the handset speaker or a short to supply voltage in that signal. The handset then does not work, while only hands-free operates.
Possible causes
- A break in the loudspeaker signal cable running to the handset
What you can do
- 1With the ignition off, check that the handset connector is secure and clean
- 2Check the loudspeaker signal cable for breaks, using a multimeter
- 3If the cable is sound, you can try replacing the handset
- 4If the cable is sound and the fault remains, have a workshop check the cable for a short to supply voltage at the control module
Symptoms you may notice2
- The handset does not work
- Message in the text display, on cars with Volvo On Call
What the fault can affect1
- Only hands-free works
General guidance for car owners. Diagnosis on the car can point to a different cause.