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Home >> Hyundai >> 2012 >> Elantra GLS, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Smart Key Unit >> DTC B1603: CAN Bus Off >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

DTC DETECTING CONDITION

Item Detecting Condition Possible Cause
DTC Strategy
  • CAN Signal Check
  1. Driver door opens, No sleeping mode in Smartkey Unit
    1. Short to battery or ground in CAN high/low in CAN high & low line simultaneously
  2. Faulty Smartkey Unit
Enable Conditions
  • Battery voltage applied to Smartkey Unit
    1. Short to ground between CAN High and CAN Low lines each other
    2. Short to battery between CAN High and CAN Low lines each other
Threshold value
  • 0
  • B+
Diagnostic Time
  • Immediately
DTC Erasing Time
  • Immediately