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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Electrical >> Gauges >> Phone Module (PHM) & Road Traffic Information (RTI) Diagnostic Trouble Codes >> PHM-001A: CARPHONE Box Power Supply. Signal Too Low. Intermittent Fault (1999-2000) >> Signal too low. Intermittent fault >> Fault-tracing information

Fault-tracing information

The diagnostic trouble code (DTC) is stored when an power supply fault is detected in the keypad/carphone module. If the diagnostic trouble code (DTC) does not recur no further corrective action is required.