VOLVO
PHM-9F11 - GPS-antenna Signal too low
System
Phone Module (PHM)
Volvo models this fault code applies to
Applies to the following models:
6 modelsC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013), XC90 (2003–)
What does this fault code mean?
The code relates to the voltage supply to the external GPS antenna, and the cause is that the antenna is short-circuited to ground. The mobile phone and Volvo On Call may work poorly, and a message appears in the text display.
Possible causes
- The external GPS antenna is short-circuited to ground
What you can do
- 1Check that the fuses for the telephone system are intact
- 2Check that the connectors at the GPS antenna and the carphone control module (PHM) are secure and free from corrosion
- 3Use a multimeter to check whether the GPS antenna touches ground (the body), once the connectors are checked
- 4Have a workshop correct the fault if the antenna is short-circuited to ground
Symptoms you may notice3
- Other mobile phone problems
- Other Volvo On Call problems
- A text message appears together with a warning symbol
General guidance for car owners. Diagnosis on the car can point to a different cause.