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Home >> Hyundai >> 2021 >> Ioniq Plug-In Hybrid SE >> Repair and Diagnosis >> External Pages >> Different car >> Section 29 (Double Clutch Transmission Diagnosis (PHEV) (2 Of 2)) >> DTC P0921-77: Gear 1 System Referencing Failure >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

WARNING: This page is about a different car, the 2021 Kia Niro. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
DTC Strategy
  • Monitoring maximum length of left/right gear shift motor1
  • Faulty Gear Actuator1
  • Faulty DCT
  • Mechanical failure on gear1 Shift direction
Enable Condition
  • Gear shift motor 1 hall sensor is normal when reference point is found during engine cranking
Threshold Value
  • Maximum motion of gear shift motor 1 is less than 19.4mm or greater than 22mm
Detecting Time
  • 3 events
Fail Safe
  • Drive at Even gear
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