|  |  | Results of the tests | 
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation | 
|---|
|  | Check
engine oil pressure is correct | Continue to Step 1 | Low oil pressure detected | See table    D35 | 
| 1 | CHECK THE MINIMUM OIL PRESSURE SWITCH | All OK | Problems met | Operation | 
|---|
|  | Check: ( See   E4010  INSTRUMENT PANEL ).operation of the low oil pressure switchconnection between switch and instrument
 | Continue to Step 2 | Faulty switch | Replace switch Op.   1084A42 | 
| Connections broken | Restore the connections | 
| 2 | CHECK INSTRUMENT | All OK | Problems met | Operation | 
|---|
|  | Check
the condition of the low oil pressure switch located in the instrument
 see DESCRIPTION AND OPERATION: 5560 INSTRUMENT PANEL |  | The warning lights consist of LEDs
built into the electronic circuit, and so CANNOT be replaced. | 
 | Continue to Step 3 | Instrument not working | Change the instrument Op.   5560B10 | 
| 3 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation | 
|---|
|  | Check
that the fault is no longer present | End of diagnosis | Fault persists | Search for the
fault starting from another symptom' |