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Home >> Saturn >> 2002 >> SL1 Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0414: Air Switching Valve Circuit Shorted >> Diagnostic Procedures
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Diagnostic Procedures

  1. Turn ignition on, with engine off. Using scan tool, command air pump solenoid on while monitoring AIR PUMP SOL. - HIGH VOLT test. If scan tool does not indicate TEST FAIL, see DIAGNOSTIC AIDS  . If scan tool indicates TEST FAIL, go to next step.
  2. Disconnect air pump solenoid. Air pump solenoid is located on air pump combination valve on right front corner of motor. Connect Noid Light (SA9194E) to air pump solenoid harness connector. Using scan tool, command air pump solenoid on while monitoring AIR PUMP SOL. - HIGH VOLT test. If scan tool indicates TEST PASS, replace air pump solenoid. If scan tool does not indicate TEST PASS, check circuit (Pink/Black wire) for short to voltage or faulty PCM.
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