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Home >> Chevrolet >> 2006 >> Monte Carlo LTZ >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 3.9L - DTC P0442 To DTC P2A01 >> DTC P0685, P0689, or P0690 >> DTC Descriptors
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DTC Descriptors

DTC P0685

Engine Controls Ignition Relay Control Circuit

DTC P0689

Engine Controls Ignition Relay Feedback Circuit Low Voltage

DTC P0690

Engine Controls Ignition Relay Feedback Circuit High Voltage

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