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Home >> Genesis >> 2019 >> G70 2.0T Advanced, AWD >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> 4WD Control System Diagnosis >> DTC P1821-13: Motor Wire Open >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Trouble Shooting Condition Possible Cause
Main Action
  • Monitor the voltage of the actuation circuit of the motor
  1. Poor contact of connectors
  2. Ground short in wire harness
  3. Fault inside transfer case (Motor)
  4. Fault inside AWD-ECU
Prerequisite Condition
  • Turn the ignition switch ON or keep the engine running
Threshold Value
  • The voltage of the actuation circuit (inside the ECU) (HB1 >4.5V & HB2 < 2V)
Diagnosis Time
  • 1 sec.
Fail safe
  • Inhibit control over the 4 wheels
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