After switching on the ignition, the control lamp does not light up
Faulty oil pressure regulator
Turn on the ignition, disconnect the wire from the oil pressure sensor and connect it to «mass» (-). If the control lamp lights up, replace the sensor.
No power is supplied to the sensor, contact oxidation
Check the wire and contacts.
Control lamp defective
Replace light bulb.
The control lamp does not go out after starting the engine
Hot oil
Ignore if the control light goes out when you press the accelerator
The control lamp does not go out when the accelerator pedal is pressed or remains on while driving
Too low oil pressure
Check the oil level. Refill if necessary. Check that the oil pressure is correct according to the vehicle manual.
Wiring to oil pressure sensor shorted to «mass» (-)
Disconnect the sensor wire power wire and set it aside (To «mass» (-) don't bring). Turn on the ignition. If the control lamp lights up, then check the wiring.
Faulty oil pressure sensor
Replace sensor.
Too low oil pressure over the entire engine speed range
Too little oil in the engine
Add oil.
The oil pick-up grid of the pallet is clogged, the oil pick-up tube is broken
Remove the oil pan, clean the mesh, replace the oil pickup tube if necessary.
Worn oil pump
Remove and check the pump. Replace if necessary
Bearing shell defect
Remove the engine.
Too low oil pressure in the lower engine speed range
Reducing valve stuck open due to contamination
Remove and check the valve.
Too high oil pressure at engine speeds above 2000 rpm
Reducing valve does not open due to contamination
Remove and check the valve.