P0500-P0599
- P051E Crankcase Pressure Sensor Circuit Intermittent/Erratic
- P051F Positive Crankcase Ventilation Filter Restriction
- P0520 Engine Oil Pressure Sensor/Switch Circuit Malfunction
- P0521 Engine Oil Pressure Sensor/Switch Circuit Range/Performance
- P0522 Engine Oil Pressure Sensor/Switch Circuit Low Voltage
- P0523 Engine Oil Pressure Sensor/Switch Circuit High Voltage
- P0524 Engine Oil Pressure Too Low
- P0525 Cruise Control Servo Control Circuit Range/Performance
- P0526 Fan Speed Sensor Circuit
- P0527 Fan Speed Sensor Circuit Range/Performance