VOLVO
PHM-0006 - Hands-free loudspeaker. Signal too high. Intermittent fault (EU/OS)
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:
4 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007)
Show models by year and engine (4)
What does this fault code mean?
The fault is intermittent, meaning sporadic, and applies to cars with the EU/OS version. The phone module (PHM) detects that the signal to the hands-free speaker has a short circuit to the supply, so hands-free mode does not work.
Possible causes
- Wiring to the hands-free speaker is shorted to supply voltage
What you can do
- 1With the ignition off, check the connector under the driver's seat that links the hands-free speaker and make sure it is secure
- 2Look for chafing or pinching on the speaker wiring, since damaged wiring can come into contact with a live supply
- 3Use a multimeter to check that the wiring has no contact with battery positive
- 4If you find no fault in the wiring, you can try replacing the hands-free speaker
- 5Clear the code and road test the car to see whether it comes back
Symptoms you may notice2
- Hands-free mode does not work
- Message in the text display, for cars with Volvo On Call
What the fault can affect1
- Only the handset works
General guidance for car owners. Diagnosis on the car can point to a different cause.