Oil Level Sensor: Testing and Inspection

With complaints such as:
A. Control lamp stays on with running engine and correct oil level.
B. Control lamp does not light up in key position "2".
C. Control lamp fails to light up with running engine, oil temperature > 60 °C and oil level below "min".

Specifications:

Conventional tool
Multimeter e.g. Sun, DMM-5

NOTE: The oil level control lamp lights up with ignition switched on (control function) and goes out as soon as the engine runs.

During the control function the oil level control lamp lights up dimly and during faults brightly.

Checking:

A. Control lamp stays on with running engine and correct oil level:





B. Control lamp does not light up in key position "2" (control function):





C. Control lamp fails to light up with running engine, oil temperature > 60 ° C and oil level below "min", control function section "B" okay: