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Home >> Chevrolet >> 2008 >> Impala SS >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays & Gages >> Diagnostic Information and Procedures >> DTC P0521 (5.3L and 3.9L Engine) >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Engine Oil Pressure 5-Volt Reference Circuit P0522 1 - P0521
Engine Oil Pressure Sensor Signal Circuit P0522 1 P0523 P0521
Low Reference - 1 - P0521
1. Engine Oil Pressure Indicator Malfunction.
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