Diagnostic Trouble Code (DTC) Information PHM-0014

Condition 

Fig 1: Identifying Carphone Antenna

Courtesy of VOLVO CARS OF NORTH AMERICA.

The diagnostic trouble code (DTC) is stored if the phone module (PHM) registers an open-circuit or a short-circuit to +12 V in the cable for the carphone antenna signal.

The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on (not key position 3) and when the battery voltage is 9-16 V.

Substitute Value 

• None.

Possible Source 

• Open-circuit in the cable (carphone antenna signal) from the antenna to the control module
• Short-circuit to +12 V in the cable (carphone antenna signal)
• Contact resistance, oxidation or loose connections in the connectors.

Fault symptom[s] 

• No or poor reception in the carphone.