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Component Testing

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: 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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