Diagnostic Trouble Code (DTC) Information ECM-P062001
Condition
The engine control module (ECM) regulates the alternator charge voltage (via LIN communication) on request of the central electronic module (CEM) (via CAN communication). The alternator control module (ACM) sends information on the fault to the engine control module (ECM) (via LIN communication). The diagnostic trouble code is generated if the alternator control module (ACM) sends the engine control module (ECM) information on an electrical fault in the alternator.
The diagnostic trouble code can be diagnosed when the engine is running.
Substitute Value
- The alternator control module (ACM) (charge regulator) charges with a fixed voltage of 13.8 V.
Possible Source
- A battery charger with high charging voltage was connected previously.
- Worn carbon brushes.
- Damaged alternator control module (ACM) (charge regulator).
- Damaged alternator.
Fault symptom[s]
- Battery discharged.