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Home › Hyundai › 2010 › Elantra GLS › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (2 Of 2) › DTC P0606: ECM PCM Processor › Inspection Repair › System Inspection

System Inspection

  1. Ignition "OFF".
  2. Disconnect ECM connector.
  3. Ignition "ON".
  4. Measure voltage between terminal 6 of the ECM harness connector and chassis ground.

    Specification:  Remain stable at battery voltage

  5. Are circuits remaining stable at battery voltage?

    YES 

    • Using a scan tool, check ECM software version and upgrade as necessary. If version is the newest one, check ECM for contamination, deterioration, or damage. Substitute with a known-good ECM and check for proper operation. If the problem is corrected, replace ECM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
    1. After TPS adaptation, the system normality should be confirmed by reading out "FMY" on the Scan Tool.

    NO 

    • If voltage fluctuates, check circuit for loose, bent or corroded terminals, Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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