P0491
Read the instructions below then start the fault diagnostic procedure.
Symptom:
| P0491 | 
Fuel Pressure Control Solenoid Circuit, High Pressure Pump, Open
On-Board Diagnostics
Fault criteria:
| - | 
        Open circuit on control module pin 19, 49
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| - | 
        The conditions above must be fulfilled for min. 0.2 s.
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For more information, see also:
- "Read Values" menu for a description of read values.
- "Activate" menu for a description of applications.
