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Home >> Chevrolet >> 2010 >> Impala Police >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Controls And Fuel - 3.5L - DTC P0341 - DTC P2544) >> DTC P0685, P0689, or P0690 >> Conditions for Setting the DTC >> P0689

Conditions for Setting the DTC: P0689

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The ECM detects the engine controls ignition relay feedback circuit is less than 5 V when the relay is commanded ON for 5 s.