Circuit/System Verification
- Engine running, observe the scan tool Engine Oil Pressure Sensor parameter. The reading should be between 41-448 kPa (6-65 psi).
- Verify the engine oil pressure, refer to the following:
- Oil Pressure Diagnosis and Testing for the 4.8L, 5.3L, 6.0L, 6.2L or 7.0L engines
- Oil Pressure Diagnosis and Testing for the 4.3L engine.
- 121508 for the 6.6L engine.