VOLVO
PHM-0004 - Hands-free loudspeaker. Signal too low. Intermittent fault (EU/OS)
System
Telefonmodul (PHM)
Volvo-modeller feilkoden gjelder for
Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.
Gjelder følgende modeller:
4 modellerS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007)
Vis modeller per årsmodell og motor (4)
Hva betyr feilkoden?
The fault is intermittent, meaning it is sporadic, and applies to cars with the EU/OS version. The phone module (PHM) registers that the signal to the hands-free speaker is short-circuited to ground. The hands-free mode then does not work, and only the handset can be used.
Mulige årsaker
- The wiring between the hands-free speaker and the phone module is short-circuited to ground
Hva du kan gjøre
- 1Clear the code and road test the car to see whether it comes back
- 2Switch the ignition off and check the connector to the hands-free speaker, which is located under the driver's seat: check that it is secure and clean
- 3Use a multimeter to check that the wiring to the hands-free speaker has no contact with ground (the body)
- 4Look for chafing or pinching along the wiring to the hands-free speaker
- 5If you find no fault in the wiring, you can try replacing the hands-free speaker; otherwise have a workshop fault-trace it
Symptomer du kan merke2
- Hands-free mode does not work
- A message in the text display, on cars with Volvo On Call
Hva feilen kan påvirke1
- Only the handset works
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.