Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information PHM-U300362

Condition




Central electronic module (CEM) compares the voltage to the Phone module (PHM) with the voltage to the Central electronic module (CEM).
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The voltage differs by more than 1.6 V.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition switch position II.
- Battery voltage between 9 - 16 V.

Substitute value
- None.

Possible source
- Contact resistance or oxidation in the terminals.
- Damaged supply voltage cable.

Fault symptom[s]
- Missing or reduced functionality in the phone
- Missing or reduced functionality for Volvo On Call