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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 C1805-81: LKAS CAN Signal Error (Invalid) >> Wiring Inspection >> LOCAL-CAN Communication Line Inspection

LOCAL-CAN Communication Line Inspection

Item Normal Value Prerequisite Condition Probe (+) Probe (-)
LOCAL-CAN communication Line: resistance Infinite
  1. Ignition switch: OFF
FCA Local-CAN High terminal Chassis ground
FCA Local-CAN Low terminal Chassis ground
LOCAL-CAN communication Line: voltage Approx. below 5V
  1. Ignition switch: ON
FCA Local-CAN High terminal Chassis ground
FCA Local-CAN Low terminal Chassis ground
LOCAL-CAN communication Line: resistance Approx. below 1Ω
  1. Ignition switch: OFF
  2. FCA, LKA-L: Disconnected
FCA Local-CAN High terminal LKA-L Local-CAN High terminal
FCA Local-CAN Low terminal LKA-L Local-CAN Low terminal
  1. Is the result within specifications?

    YES 

    • This can be an intermittent fault caused by poor contact in the sensor's and/or control module's connector. Or, control module's memory was not cleared after repair. Thoroughly check connectors for looseness, poor connection, ending, corrosion, contamination, deterioration, or damage.
    • Repair or replace the relevant component(s) as necessary, and go to "VERIFICATION OF VEHICLE REPAIR ".

    NO