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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 425 (Engine Controls - Self-Diagnostics) >> Diagnostic Tests >> DTC P0327: Knock Sensor Circuit Out Of Range >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

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

  1. 2

    This step ensures the malfunction is present.

  2. 3

    This step ensures that the KS is capable of detecting detonation and producing a signal.

  3. 6

    If the KS signal circuit is shorted to ground or shorted to voltage, the KS may still produce a signal.

  4. 7

    If the KS signal low reference is shorted to ground, or shorted to voltage, the KS may still produce a signal.
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