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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 252 (Engine Control System & Fuel - 4.8L, 5.3L, 6.0L, Or 6.2L - DTC P0230 To DTC P0690) >> DTC P0335 >> Component Testing

Component Testing

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IMPORTANT: You must perform the Circuit/System Testing before proceeding with Component Testing.
  1. Inspect the CKP sensor for correct installation. Remove the CKP sensor from the engine and inspect the sensor O-ring for damage.
    • If the sensor is loose, incorrectly installed, or damaged, replace the CKP sensor.
  2. Connect the CKP sensor harness connector to the CKP sensor.
  3. Ignition ON, engine OFF. Observe the CKP Active counter parameter on the scan tool.
  4. Pass a flat steel object across the tip of the sensor repeatedly. The CKP Active counter parameter should increment with each pass of the steel object.
    • If the parameter does not increment, replace the CKP sensor.
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