Diagnostic Trouble Code (DTC) Information PHM-B116915

Condition 

The Phone module (PHM) checks the signal from the handset, cradle switch.

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

• The system voltage is greater than 4.5 V.

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

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

Substitute Value 

• Only hands-free operates.

Possible Source 

• The cable for the cradle signal, between the handset and the control module, has a short-circuit to supply voltage or open-circuit.

Fault symptom[s] 

• The handset does not function.
• Message in the text display (applies only to phone modules (PHM) with Volvo On Call).