DTC P1151: Oil Pressure Control Valve: Activation: Notes

Diagnostic information - DME (DFI) control unit 

INFORMATION 

• The oil pressure control valve is controlled via a PWM signal.
• The PWM signal depends, among other things, on the ambient conditions (temperatures, off time, etc.), operating point of the engine (rpm, load, oil temperature), measured oil pressure (at the oil pressure sensor)...
• A fault is detected if the PWM signal is outside a defined range for > 8 seconds.
• The oil pressure is reduced to the minimum pressure in the event of a short circuit to ground.