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Home >> Hyundai >> 2007 >> Elantra SE, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System (G4GC-GSL 2.0) >> DTC Troubleshooting Procedures >> DTC U0101 Serial Communication Problem With TCU (Timeout) >> DTC Detecting Condition
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DTC U0101 Serial Communication Problem With TCU (Timeout): DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible Cause
DTC Strategy
  • No Message coming from TCU
  • Poor connection or damaged harness
  • Faulty ECM
Enable Conditions
  • Battery voltage > 10V
  • Engine speed > 32rpm
  • Lay time > 0.5 sec.
Threshold Value
  • No message from TCM
Diagnostic Time
  • 1 sec.
MIL On Condition
  • 2 Driving Cycles
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