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Home >> Suzuki >> 2008 >> XL7 Base, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine General Information And Diagnosis >> Diagnostic Information and Procedures >> DTC P0011, P0014, P0021, or P0024 >> Circuit/System Testing
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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the appropriate CMP actuator solenoid.
    NOTE: The test lamp is used to load the circuit and may not illuminate.
  2. Connect a test lamp between the ignition circuit terminal 1 and the negative terminal of the battery.
  3. Ignition ON, test for less than 0.1 volt between the ignition circuit terminal 1 and the positive battery terminal.
    • If greater than 0.1 volt, repair the ignition voltage circuit for an open/high resistance.
      NOTE: Use the J 35616-200 Test Lamp Kit for this test. If the J 35616-200 is not available, use a test lamp that measures greater than 20 ohms.
  4. Connect a test lamp between the control circuit terminal 2 and B+.
  5. Command the appropriate CMP actuator solenoid ON with a scan tool.
    NOTE: The voltage must be measured at the control side of the circuit.
  6. Test for less than 1 volt between the probe of the test lamp and the ECM housing.
    • If greater than the specified value, test the control circuit for an open/high resistance. If the circuit/connections test normal, replace the ECM.
  7. Remove the CMP actuator solenoid. Inspect the CMP actuator solenoid and mounting area for the following conditions:
    • For a torn, restricted, mispositioned, or missing screens at the CMP actuator solenoid
    • For engine oil leaks between the oil sealing lands of the CMP actuator solenoid-Inspect the lands of the CMP actuator solenoid for nicks.
    • For oil seepage at the CMP actuator solenoid connector
      • If a condition is found, replace CMP actuator solenoid.
  8. Ignition OFF, swap the suspected CMP actuator solenoid with a CMP actuator solenoid that is operating correctly.
  9. Engine idling, command the suspected camshaft actuator from 0 degrees to 40 degrees and back to zero while observing the appropriate scan tool CMP Angle Variance parameter. The CMP Angle Variance should be less than 2 degrees in each of the commanded states.
    • If the CMP Angle Variance is greater than 2 degrees, replace the camshaft position (CMP) actuator.
  10. If all circuits/connections test normal, test or replace the CMP actuator solenoid.
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