Oil Pressure Warning Indicator Not Operating Properly

Tests 1 - 3:

Tests 4 - 9:

SYMPTOM
OIL PRESSURE WARNING INDICATOR NOT OPERATING PROPERLY

POSSIBLE CAUSES
- Instrument cluster sense circuit shorted to ground
- Engine oil pressure less than 27.6 kpa (4 psi) cold
- Oil pressure switch - open
- Oil pressure switch sense circuit shorted to ground
- Engine oil pressure less than 27.6 kpa (4 psi) warm
- Oil pressure switch sense circuit open
- Instrument cluster - sense circuit open
- Oil pressure switch - shorted to ground