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Home >> Hummer >> 2008 >> H3 Alpha >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 5.3L - DTC P0335 To DTC P2138 >> DTC P0685 or P0690 >> DTC Descriptors
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC Descriptors

DTC P0685

Engine Controls Ignition Relay Control Circuit

DTC P0690

Engine Controls Relay Feedback Circuit High Voltage

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