The oil pressure switch sends a signal to the DDE control module, which then checks whether the oil pressure warning light on the instrument cluster must be activated. In order to prevent inappropriate activation of the oil pressure warning light, the oil pressure switch signal is suppressed in the following situations:
If the oil pressure switch signals inadequate oil pressure in any other situation, the DDE control module activates the oil pressure warning light.
Here, the DDE control module monitors neither the signal of the oil pressure switch nor the activation of the oil pressure warning lamp for faults.