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Home >> Hyundai >> 2021 >> Veloster Turbo R-Spec >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Forward Collision-Avoidance Assist Diagnosis >> DTC C1642-81: CAN Message Failure - Brake >> DTC Information And Inspection >> DTC Setting Condition

DTC Setting Condition

Trouble shooting Condition Possible Cause
Main action
  • Monitor CAN messages
  1. Faulty ESP (ESC) system (Faulty pressure sensor attached to master cylinder)
Prerequisite condition
  • Engine is on (Confirm that an engine operation signal is sent from EMS for over 2 sec.).
  • Battery Voltage is between 9V and 16V.
  • Ignition has been on for over 2 sec.
  • CAN communication lines are normal.
Threshold Value
  • Abnormal messages are received.
Diagnosis Time
  • 0.5 sec.
MIL
  • FCA/SCC operation cancelled/inhibited
  • FCA/SCC warning lamp ON
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