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Home >> Hyundai >> 2007 >> Azera SE >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC Troubleshooting Procedures >> DTC P0685 ECM/Pcm Power Relay Control Circuit / Open >> Power Circuit Inspection
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Power Circuit Inspection

  1. IG "OFF"
  2. Disconnect Main Relay
  3. IG "ON" & ENG "OFF".
  4. Measure voltage between harness terminal 2 of Main Relay and chassis ground.
  5. Measure voltage between harness terminal 5 of Main Relay and chassis ground.

    Specification: B+

  6. Is the measured voltage within specification?

    YES 

    NO 

    • Check fuse between battery and main relay is disconnected.
    • Repair or replace open or short in harness and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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