Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Hyundai >> 2021 >> Palisade SE, FWD >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> SBW Control Unit Diagnosis >> DTC P28EA-77: Shift Motor Position Sensor Circuit Range/Performance >> DTC Information And Inspection >> DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

Trouble Shooting Condition Possible Cause
DTC Strategy
  • Motor monitoring
  1. Poor connection
  2. SBW actuator motor initialization failure
  3. SBW actuator encoder open
  4. Faulty SBW actuator
  5. Faulty SCU
Enable Condition
  • Battery voltage is above 10V
  • No motor related DTC
Threshold Value
  • If the SBW actuator motor initialization failure
    • When ignition "ON", enters a temporary failure state after the first 5 times
    • Upon receiving a shift request, retry 5 times to detect failure and display a warning
Detecting Time
  • 1s
Fail Safe
  • Before DTC determination: keep previous signal
  • After DTC determination
    • Maintain current stage, display SBW system warning message when requesting D/n/r stage
    • P-level request: EPB signing request/parking warning
MIL ON Condition
  • 2 driving cycles