Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information PHM-0022

Condition




The diagnostic trouble code (DTC) is stored if the phone module (PHM) registers a short-circuit to +12 V in the power supply to the handset.
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
- Only hands-free operates.

Possible source
- Short-circuit to +12 V in the cable (power supply) from the phone module (PHM) to the handset.

Fault symptom[s]
- The carphone handset is not working.
- Message in the text display (applies only to phone modules (PHM) with Volvo On Call).