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Home >> Hyundai >> 2021 >> Veloster 2.0, Standard Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Forward Collision-Avoidance Assist Diagnosis >> DTC C1633-81: Cluster Invalid Displayed Speed >> DTC Information >> DTC Setting Condition

DTC Setting Condition

Trouble shooting Condition Possible Cause
Main action
  • Monitor CAN messages
  1. Faulty ESP (ESC) vehicle speed signal
  2. Faulty Cluster system
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
  • An abnormal CAN message (Invalid vehicle speed) is received from the Cluster via C-CAN.
Diagnosis Time
  • 0.5 sec.
MIL
  • SCC operation cancelled/inhibited (FCA works normally)
  • SCC warning lamp ON (FCA warning lamp OFF)