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Home › Genesis › 2021 › GV80 3.5T Advanced+ › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis - 3.5L (9 Of 9) › DTC U0164-00: Lost Communication With HVAC Control Module › DTC Information And Inspection › DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

Troubleshooting Condition Possible Cause
Main Action
  • Electrical inspection
  1. Poor contact of connector
  2. CAN communication line between Engine Electronic Control Unit (ECU) and A/C Control module
  3. A/C Control module
Prerequisite Condition
  • The battery voltage is greater than 10V
Threshold Value
  • Communication with the A/C Control module has been lost longer
Diagnostic Time
  • -
MIL
  • NOMIL
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