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Home >> Pontiac >> 2006 >> Solstice Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.4L - DTC P0010 To DTC P0340 >> DTC P0335 >> Circuit/System Testing

Circuit/System Testing

  1. With the ignition OFF, disconnect the harness connector at the CKP sensor.
  2. With the ignition ON, measure for 4.8-5.2 volts, between the 5-volt reference circuit of the CKP sensor and ground.
    • If the voltage is less than 4.8 volts, test for a short to ground, open/high resistance at the circuit, or faulty ECM.
  3. With the ignition ON, measure for 4.8-5.2 volts between the 5-volt reference circuit of the CKP sensor and the low reference circuit of the CKP sensor.
    • If the voltage is less than 4.8 volts, test for an open/high resistance at the circuit or a faulty ECM.
  4. With the ignition ON, momentarily connect a test lamp between the CKP sensor signal circuit and the 5-volt reference circuit of the CKP sensor. The fuel pump should operate when the test lamp is applied to the CKP sensor signal circuit.
    • If the fuel pump does not operate when the test lamp is applied to the CKP sensor signal circuit, test for a short to ground, open/high resistance, short to voltage at the circuit, or a faulty ECM.
  5. Remove the CKP sensor.
  6. Inspect the CKP sensor for the following conditions:
    • Physical damage
    • Excessive play or looseness
    • Improper installation
    • Foreign material passing between the CKP sensor and the reluctor wheel
    • Electromagnetic interference in the CKP sensor circuits
  7. Inspect the CKP reluctor wheel for the following conditions:
    • Physical damage
    • Excessive end play or looseness
    • Improper installation
  8. If all circuits and components test normal, replace the CKP sensor.
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