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Home >> Chevrolet >> 2012 >> Cruze Eco, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 138 (Engine Controls And Fuel - 2.0L - DTC P0243 To DTC P0690) >> DTC P0324, P0326, P0327, P0328, P0331, P0332, or P0333 >> Circuit/System Testing >> P0327, P0328, P0332, and P0333

P0327, P0328, P0332, and P0333

WARNING: This page is about a different car, the 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE: If the knock sensor lead is damaged in any way, replace the knock sensor.
  1. Ignition OFF. Disconnect the appropriate B68 KS harness connector.
  2. Measure for 2-5 volts between each of the following circuits and ground on the ECM side of the harness connector:
    • The KS signal circuit, terminal A
    • The KS signal circuit, terminal B
    • If less than the specified range, test the circuits for a short to ground or an open/high resistance. If the circuits test normal, replace the K20 ECM.
    • If greater than the specified range, test the circuits for a short to voltage. If the circuits test normal, replace the K20 ECM.
  3. If the circuits test normal, replace the B68 knock sensor.
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