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Home >> Hyundai >> 2006 >> Elantra GLS, 4D Hatchback, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle System (F4A42) >> Automatic Transaxle System >> DTC P1603 Can Communication Bus Off >> DTC Detecting Condition

DTC P1603 Can Communication Bus Off: DTC Detecting Condition

DTC DETECTING CONDITION POSSIBLE CAUSE

Item Detecting Condition Possible cause
DTC Strategy
  • Check voltage range
  • Faulty PCM/TCM
Enable Conditions
  • IG switch on
  • No actuator test
  • No FAIL SAFE status of 3rd gear holding
  • No FAIL in PG-A, B
  • Power voltage ≥ 10V is detected for a series of 0.5 sec
  • Engine STOP,
Threshold value
  • In case of no ECU information
Diagnostic Time
  • 0.5sec
Fail Safe
  • INTELLIGENT SHIFT and is inhibited
  • Learning for oil pressure control is inhibited
  • Torque Retard requirement is inhibited
  • Direct connection control of TCC is inhibited
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