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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1147 (Engine Controls And Fuel - 3.6L - DTC P0137 To DTC P0497) >> DTC P0326, P0327, P0328, P0331, P0332, or P0333 >> Component Testing

Component Testing

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect a DMM set to the AC mV scale, between the terminals of the KS.
  2. Tap on the engine block with a non-metallic object near the KS while observing the DMM.
  3. The DMM should display a fluctuating AC voltage greater than 30 mV while tapping on the engine block.
    • If less than the specified valve, replace the KS.