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Home >> Kia >> 2020 >> Cadenza Technology >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> SBW Control Unit Diagnosis >> DTC P28E8-12: SBW Actuator Encoder Error >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Voltage monitoring
  • Poor connector connection
  • Short to battery in SBW actuator encoder signal circuit
  • Faulty the SBW actuator
  • Faulty the SCU
Enable Condition
  • Ignition "ON". (diagnose even when engine is "ON")
  • Battery voltage is greater than 10V
Threshold Value
  • If the motor encoder A, B signal voltage is more than 7.4V
Detecting Time
  • 0.4s
MIL ON Condition
  • 2 driving cycles