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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 508 (Engine Controls/Fuel - 5.3L, 6.0L, 6.2L - DTC P0420 To DTC P3449 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0685, P0689, P0690, or P1682 >> Diagnostic Aids

Diagnostic Aids

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The powertrain relay may also be labeled the engine controls ignition relay, the engine control module relay, or the main relay. The run/crank relay may also be labeled the ignition run relay, the ignition main relay, the ignition 1 relay, or the ignition relay.

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