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DTC Information And Inspection: DTC Detecting Condition

WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
Trouble Shooting Condition Possible Cause
Main action
  • Monitor the input signal (CAN Error)
  1. While the driver seat door is open (SMK Unit is not in the Sleep mode)
    1. check for a short in a CAN High line
    2. check for a short between CAN High and Low line
    3. Poor contact of connector.
    4. Smart key unit (PIC IMMO unit)
NOTE: Signal level in sleeping mode
  • CAN High line: Ground
  • CAN Low line: Battery voltage
Prerequisite condition
  • 9V < Battery Voltage < 16V
Threshold value
  • The error count increases by 7 if the CAN Error PIN is low. A DTC sets if the error count reaches 200 or higher (detection period: When a failure persists for 300ms with a 10ms interval, a DTC will appear.)
Diagnosis time
  • DTC persists for over 2 sec.
DTC clearing time
  • DTC will be cleared when the CAN Error PIN returns to the normal state. (Present DTC)
  • DTC will be cleared when the CAN Error PIN returns to the normal state and the ignition switch is turned on and off for 30 times. (History DTC)