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Home >> Kia >> 2015 >> Sedona EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (4 Of 4) >> DTC P0685: ECM/PCM Power Relay Control Circuit/Open >> Component Inspection
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Component Inspection

■ Main Relay Actuation Test 

  1. Connect GDS to Data Link Connector(DLC).
  2. IG KEY "ON" & ENG "OFF".
  3. Perform "Actuation Test" for "Main Relay".
    Fig 1: Screen Display - Main Relay In Actuation Test
    G10646955Courtesy of KIA MOTORS AMERICA, INC.

■ Confirm Part Inspection 

  1. Does the Main Relay operate properly? (Check variation)

    YES 

    • Carefully re-do this troubleshooting guide steps.
    • If the diagnostics have been performed correctly with no failure found, replace the PCM and then go to "Verification Of Vehicle Repair " procedure.

    NO 

    • Carefully re-do this troubleshooting guide steps.
    • If the diagnostics have been performed correctly with no failure found, replace the Main Relay and then go to "Verification Of Vehicle Repair " procedure.