VOLVO
PHM-U1A5096 - Control module internal power +3V. Component Failures. Component internal failure
System
Phone Module (PHM)
Volvo models this fault code applies to
Applies to the following models:
3 modelsS80 (2007–), V70 (2008–), XC70 (2008–)
Show models by year and engine (3)
What does this fault code mean?
The telephone module (PHM) has an internal voltage supply that is monitored. The fault is stored when the module detects an internal fault in it, and then the phone and Volvo On Call can have limited function.
Possible causes
- Internal fault in the control module
What you can do
- 1Clear the code and check whether it returns after a road test
- 2If it returns, a workshop should replace the telephone module, as the fault lies inside it
Symptoms you may notice3
- Volvo On Call has no function or reduced function
- The phone has no function or reduced function
- Message in the text display
General guidance for car owners. Diagnosis on the car can point to a different cause.