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Home >> Suzuki >> 2007 >> XL7 Base, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> Diagnostic Information and Procedures >> DTC P2105 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, remove the fuse that supplies voltage to terminals C2-3, C2-5, and C2-6 of the ECM. Verify the fuse is OK.
    NOTE: This DTC will only set if the fuse is open and the circuits are not grounded. The ignition voltage circuits must be tested thoroughly for an intermittent short to ground.
    • If the fuse is open, test the ignition voltage circuit between the open fuse and the ECM for an intermittent short to ground.
  2. Install the fuse.
  3. Disconnect the harness connector of the ECM. Ignition ON, load test for battery voltage on the ignition circuits at the ECM.
    • If less than B+, repair the ignition circuit for an open/high resistance.
  4. If all circuits/connections test OK, replace the ECM.
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