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Home >> Saturn >> 2007 >> Vue Red Line, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> DTC P0520 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the EOP.
  2. Ignition ON, install a 3-amp fused jumper between the signal circuit and ground. Verify the scan tool Low Oil Pressure Switch parameter is Closed or the scan tool Low Oil Pressure parameter is Yes.
    • If not Closed or Yes, test the signal circuit of the EOP switch for an open/high resistance. If the circuit tests normal, replace the ECM/PCM.
  3. If all circuits test normal, test or replace the EOP switch.
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