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Home >> Hyundai >> 2021 >> Santa Fe Calligraphy, AWD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System Diagnosis (Except HEV) (3 Of 3) >> DTC B1493-00: OCS (Occupant Classification System) Communication Error >> Wiring Inspection >> CAN communication Line Inspection

CAN communication Line Inspection

Item Normal Value Prerequisite Condition Probe (+) Probe (-)
Inspect CAN Signal Circuit: Voltage Below 5V (Within 2.5V)
  1. Ignition switch "ON"
  2. OCS ECU connector: Connected
"High" terminal of the OCS ECU harness connector. Chassis ground
"Low" terminal of the OCS ECU harness connector.
  1. Is the measured within the specifications?

    YES 

    • Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
    • Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO