P0078

P0078

Valve Lift Control Driver, Open Circuit

Diagnostic conditions
- Battery positive voltage 10 V ... 16 V
- Time after engine starts > 10 seconds

Possible fault causes
- Solenoid hydraulic valve faulty (open circuit)
- Open circuit in the activation line to the solenoid hydraulic valve
- Open circuit in the power supply line to the solenoid hydraulic valve
- DME control module faulty