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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 365 (Engine Controls And Fuel - Hybrid (LZ1) - DTC P0351 Through DTC P3449 And Troubleshooting) >> Diagnostic Information and Procedures >> DTC P0601-P0604, P0606, P0607, P060D, P062F, P16F3, or P2610 (ECM) >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE:

    An intermittent or momentary, less than 1 s, loss of system voltage during throttle tip-in may set DTC P060D.

  1. Ignition ON, clear the DTC information with a scan tool. Observe the scan tool DTC information. Verify that DTCs P0602 or P2610 do not fail this ignition cycle.
    • If DTC P0602 failed this ignition, reprogram the ECM. Refer to Control Module References . If DTC P0602 resets, replace the ECM.
    • If DTC P2610 failed this ignition, test the ECM ignition, battery positive voltage, and ground circuits for an open/high resistance or a short to ground. If the circuits test normal, replace the ECM.
  2. Ignition ON, observe the DTC information with a scan tool. Verify DTCs P0601, P0603, P0604, P0606, P0607, P060D, P062F, or P16F3 do not set this ignition cycle.
    • If any of the DTCs set this ignition cycle, replace the ECM.
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