VOLVO
PHM-0014 - Carphone antenna. 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 code concerns the phone antenna signal, which is either too high or missing. The cause can be a break in the wiring from the antenna to the control module, or poor contact, oxidation or looseness in the connectors. Reception in the phone then becomes poor or is lost.
Possible causes
- A break somewhere between the antenna and the control module
- Poor contact, oxidation or looseness in the connectors
What you can do
- 1With the ignition off, check that the connectors at the antenna are secure and clean
- 2Use a multimeter to check the antenna cable for a short to supply voltage
- 3Check the antenna cable for breaks with a multimeter
- 4If the cables are sound, you can try replacing the antenna
Symptoms you may notice1
- No or poor reception on the phone
General guidance for car owners. Diagnosis on the car can point to a different cause.