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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Blind Spot Detection Diagnosis - Right (Except HEV) >> DTC C1646-81: CAN Message Failure - TCU >> DTC Inspection >> Monitor GDS Data

Monitor GDS Data

  1. Connect GDS to Data Link Connector (DLC).
  2. IGN "ON"
  3. Using GDS, check if there is an error in Engine or TCU system.

    If there is an error in Engine or TCU system, first do a troubleshooting for those system and then check BSD system.

  4. Are any DTC's present?

    YES 

    • Substitute with a known-good "TCU" and check for proper operation. If the problem is corrected, replace "TCU" and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

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