Diagnostic Trouble Code (DTC) Information PHM-B117904

Condition 

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

• The control signal has incorrect value.

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

• Ignition switch position I and II. Phone module (PHM) without Volvo ON Call.
• Ignition position 0, I and II. Phone Module (PHM) with Volvo On Call.

Fig 1: Identifying Phone Module (PHM)

Courtesy of VOLVO CARS CORPORATION

Substitute Value 

• None.

Possible Source 

• Internal fault in the phone module (PHM).

Fault symptom[s] 

• Missing or reduced functionality for Volvo On Call
• Missing or reduced functionality in the phone
• Message in information display