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Home >> Kia >> 2020 >> Optima SX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 31 (Dual Clutch Transmission Diagnosis - 1.6L (2 Of 2) (Except HEV)) >> DTC P090B-78: Clutch 2 System Reference Position Failure >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Check the Clutch reference
  1. Clutch 2 motor Fault
  2. Clutch 2 System Reference Position Failure
Enable Condition
  • Battery voltage above 9V
Threshold Value
  • Difference value between previous reference position and current position is above 0.5 mm
Detecting Time
  • More than 1 times
Fail Safe
  • Drive at Odd gear
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