VOLVO
PHM-006C - Handset cradle. Signal too low
System
Phone Module (PHM)
Volvo models this fault code applies to
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?
Although the code is named signal too low for the handset cradle, it applies to the cradle signal from the handset being short-circuited to ground. The handset then does not work, but hands-free can still be used. Messages appear in the text display on cars with Volvo On Call.
Possible causes
- The cradle signal wiring between the handset and the control module is short-circuited to ground
What you can do
- 1Read and note the code before clearing it, so the workshop can see it
- 2Check that the handset connector is firmly seated and free from corrosion
- 3Use a multimeter to check that the cradle signal wire has no contact with ground (the body), once the connector is checked
- 4If the wire is fault-free, have a workshop try replacing the handset
Symptoms you may notice2
- The handset does not work
- Text message on the display, only 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.