Engine Oil Pressure Warning Lamp
DESIGN/PURPOSE
When engine oil pressure is low, the oil pressure warning lamp informs the driver of low oil pressure to prevent damage to the engine.
BULB CHECK
Not applicable
OPERATION AT COMBINATION METER CAN COMMUNICATION CUT-OFF OR UNUSUAL SIGNAL
For the operation for CAN communications blackout or abnormal signal reception, refer to Fail-Safe .
SYSTEM DIAGRAM
SIGNAL PATH
ECM calculates an engine oil pressure according to a signal transmitted from the engine oil pressure sensor. When the engine oil pressure is low, ECM transmits the engine oil pressure warning lamp signal to combination meter via CAN communication. Then the engine oil pressure warning lamp illuminates.
LIGHTING CONDITION
When all of the following conditions is satisfied:
- Ignition switch: ON
- Engine oil pressure is less than specified value.
SHUTOFF CONDITION
When any of the following conditions is satisfied:
- Ignition switch: OFF
- Engine oil pressure is the specified value or more.
TIMING CHART