Diagnostic trouble code (DTC) information

Condition 

Diagnostic trouble code (DTC) PHM-0001 is stored if the voltage from the keypad/carphone module deviates by more than 2.5 V from the central electronic module voltage.

Possible Source 

• The voltage from the keypad/carphone module deviates too much from the central electronic module voltage.

Fault symptom[s] 

• The carphone does not function.