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Home >> Chevrolet >> 2009 >> HHR SS, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 2.2L Or 2.4L - DTC P0351 To DTC P2544) >> DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 >> Circuit/System Testing for the DTC

Circuit/System Testing for the DTC

WARNING: This page is about a different variant/trim than selected.
  1. Observe the DTCs with the scan tool.
    • If DTC P0602 is set, attempt to program the ECM before replacing the ECM. Refer to Control Module References for ECM replacement, setup, and programming.
    • If DTC P0602 resets, replace the ECM.
  2. Test the voltage and ground inputs to the ECM for the following:
    • A short
    • An open
    • High resistance
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