LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Saturn >> 2009 >> Sky Red Line, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.0L - DTC P0243 To DTC P0690 >> DTC P0351-P0354 >> Circuit/System Testing
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the affected ignition coil/module.
  2. Ignition OFF for 90 seconds, disconnect the X1 harness connector at the ECM.
  3. Test for less than 5.0 ohms between the ignition coil/module IC circuit terminal 3:
    • IC 1 circuit: terminal 55 X1
    • IC 2 circuit: terminal 80 X1
    • IC 3 circuit: terminal 79 X1
    • IC 4 circuit: terminal 56 X1
    • If greater than the specified range, test the IC circuit for an open/high resistance.
  4. Connect the ECM.
  5. Exchange the affected ignition coil/module with the ignition/coil module of a good cylinder.
  6. 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.
scientia non olet · About LEMON Manuals