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Home >> Suzuki >> 2007 >> Swift + >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls & Fuel - 1.6L - DTC P0324 To P0651 >> DTC P0351 or P0352 >> Circuit/System Testing
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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector of the ignition coil.
  2. Ignition ON, verify that a test lamp illuminates between the ignition 1 voltage circuit and ground.
    • If the test lamp does not illuminate, test the ignition 1 voltage circuit for a short to ground or an open/high resistance. If the circuit tests normal and the ignition 1 voltage circuit fuse is open, test all components connected to the ignition 1 voltage circuit and replace as necessary.
    3. IMPORTANT: Set the DMM to the AC Hertz scale for this test.
  3. Connect a DMM between the appropriate ignition control circuit and ground.
  4. While cranking the engine, test for greater than 2 hertz between the appropriate ignition control circuit and ground.
    • If less than 2 hertz, test the ignition control circuit for a short to voltage, short to ground or an open/high resistance. If the circuit/connection test normal, replace the ECM.
  5. If all circuits/connections test normal, replace the ignition coil.
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