Diagnostic Trouble Code (DTC) Information PHM-0065

Condition 

Fig 1: Identifying Volvo On Call Buttons

Courtesy of VOLVO CARS OF NORTH AMERICA.

The Phone module (PHM) checks the voltage on the SOS On Call switch.

The diagnostic trouble code (DTC) is stored if the control module detects that:

• The voltage is too low.

The control module's test for the diagnostic trouble code (DTC) starts in the event of:

• Ignition position 0, I and II.
• Battery voltage between 9 - 16 V.

Substitute Value 

• None.

Possible Source 

• SOS and/or the On Call switch has a short-circuit to ground.

Fault symptom[s] 

• Volvo On Call/Other Volvo On Call problems
• Volvo On Call/Does not work
• Text window and warning symbol/Text message