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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 4.3L >> Diagnostic Tests >> DTC P0336: Crankshaft Position Sensor Circuit Performance >> Test Description

Test Description

The numbers below refer to the step numbers in the diagnostic procedures.

  1. 2

    This step verifies that the malfunction is present.
  2. 3

    This step inspects for electromagnetic interference (EMI) on the CKP sensor circuits.
  3. 6

    Vertical lines across the face of the sensor could indicate foreign material passing between the CKP sensor and the reluctor wheel. Non-vertical lines across the face of the sensor may indicate a crack in the CKP sensor. Either of these conditions causes this DTC to set.