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Home >> Hyundai >> 2013 >> Genesis 3.8 >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Power Trunk Module Diagnosis >> DTC B1621: ECU Check Sum Error >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Signal Voltage Check
  • Faulty PTM
Enable Conditions
  • IG ON
  • Engine running
Threshold value
  • PTM internal error
Diagnostic Time
  • Immediately (The present error)
DTC Erasing Time
  • Erase the present DTC in the moment of Wake-up after Sleep or trouble fixed. (The present DTC → The past DTC)
Limp Home Mode
  • It is available to operate by hand-operated.