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Home >> Saturn >> 2009 >> Sky Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.4L - DTC P0351 To DTC P2544 >> DTC P0351-P0354 >> Circuit/System Testing
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Circuit/System Testing

  1. Ignition OFF for 90 seconds, disconnect the ECM.
  2. Test the affected IC circuit terminal 3 for an open, a high resistance, a short to ground and for a short to voltage.
    • If a fault is found, repair the circuit as needed.
  3. Connect the ECM.
  4. Exchange the affected ignition coil/module with the ignition/coil module of a good cylinder.
  5. Start the engine and observe the scan tool.
    • If the DTC or the misfire transfers with the suspect ignition/coil module, replace as needed.
    • If the DTC or the misfire does not transfer with the suspect ignition/coil module, replace the ECM.
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