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Home >> Buick >> 2009 >> Allure CX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 3.8L - DTC P0016 To DTC P0350 >> DTC P0335 >> Component Test
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Component Test

  1. Inspect the CKP sensor for looseness and correct installation.
  2. Connect jumper wires from the CKP sensor connector 12-volt reference CKP sensor 1 terminal D and the low reference CKP sensor 1 terminal C to the CKP sensor. Turn ON the ignition, with the engine OFF.
  3. Connect a DMM to the CKP sensor signal CKP sensor 1 terminal B at the CKP sensor and ground and observe the Duty cycle. Pass a steel object by the sensor repeatedly. The Duty Cycle should increment.
    • If the Duty Cycle does not increment, replace the CKP sensor.
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