Diagnostic trouble code (DTC) information

Condition 

Diagnostic trouble code (DTC) PHM-0007 is stored if the keypad unit / carphone module registers an open-circuit in the MBUS signal.

Possible Source 

• Open-circuit in the MBUS wiring between the carphone box and the keypad unit / carphone module
• Fault in the connector for the carphone box or for the keypad unit / carphone module.

Fault symptom[s] 

• The carphone does not function
• Combined instrument panel message that the carphone is not functioning.