| Malfunction | Cause | Solution |
| The oil pressure warning light does not come on after the ignition is turned on | Open circuit in the oil pressure sensor electrical circuit | Check the sensor contacts |
| The electrical circuit contacts are corroded | Check the connections | |
| The oil pressure sensor is faulty | Replace the sensor | |
| The oil pressure warning light does not go out after the engine is started | The oil is too hot | There should be no cause for concern if the lamp goes out when the revs increase. Otherwise: |
| The oil pressure sensor is faulty | Replace the sensor | |
| Oil pressure too low | Check the oil pressure in the lubrication system (see section "Removal, installation and checking the oil pressure sensor") | |
| The oil pressure warning light comes on while driving | Too low oil pressure in the system | Check the oil pressure (see section "Removal, installation and checking the oil pressure sensor") |
| Too low oil pressure in the system | Low oil in the engine | Check the oil level and top up if necessary |
| The oil pump is faulty | Check the pump and replace if necessary | |
| The bearing is damaged | Send the engine in for repair |
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