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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 73 (Power Steering System Diagnosis (HEV)) >> DTC C1604: ECU Hardware Error >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Check ECU H/W
  1. Faulty EPS CM
Enable conditions
  • IG ON
Threshold value
  • ECU H/W error occurs
Fail Safe
  • Motor: OFF/ON
  • Relay: OFF/ON
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