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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 253 (Engine Control System & Fuel - Hybrid (Hp2) 6.0L (LFA) - DTC P0231 To DTC P0690) >> DTC P0324, P0325, P0326, P0327, P0328, P0330, P0332, or P0333 >> Circuit/System Testing >> P0325, P0327, P0328, P0330, P0332, P0333

P0325, P0327, P0328, P0330, P0332, P0333

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, open the hood to disable the Auto-Stop function. Refer to Hybrid Modes of Operation Description .
  2. Ignition ON, verify the scan tool hood position parameter displays Open.
  3. Ignition ON, engine OFF.
  4. Disconnect the appropriate KS harness connector.
  5. Measure for 2-3 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 ECM.
    • If greater than the specified range, test the circuits for a short to voltage. If the circuits test normal, replace the ECM.
  6. If all circuits test normal, replace the KS.
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