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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 304 (Displays And Gauges) >> Diagnostic Information and Procedures >> DTC P0521, P0522, or P0523 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground High Resistance Open Short to Voltage Signal Performance
Engine Oil Pressure 5 V Reference P0522 1 P0522 P0523 P0521
Engine Oil Pressure Sensor Signal P0522 1 P0522 P0523 P0521
Low Reference - 1 P0523 - P0521
1. Engine Oil Pressure Gauge Inaccurate or Inoperative