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Home >> Hyundai >> 2021 >> Ioniq Plug-In Hybrid Limited >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Cluster Module Diagnosis (PHEV) >> DTC B1040-55: LKAS/LDWS Present Error - Coding Code Error >> DTC Information >> DTC Setting Condition

DTC Setting Condition

Trouble shooting Condition Possible cause
Main action
  • Monitor CAN communication
  1. Discordance with vehicle information
  2. Variant coding procedure not conducted
  3. Faulty LKAS/LDWS*
  4. Faulty C-CAN line
  5. Faulty Cluster*
Enable Conditions
  • IG key "ON"
Case1 Threshold value
  • LKAS* EOL coding error
DTC Erasing Time
  • Erased DTC after solved problem
Case2 Threshold value
  • EOL variant coding does not have LKAS/LDWS* information although CAN BUS has the system
DTC Erasing Time
  • Conduct coding in line with the vehicle specifications
Diagnostic Time
  • 500 ms
NOTE: LKAS/LDWS*: "LANE DEPARTURE WARNING UNIT"
Cluster*: "INSTRUMENT CLUSTER"
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