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Home >> Hyundai >> 2022 >> Elantra N Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (6 Of 6) >> 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 Control Module (ECM) 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
  • NO MIL
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