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Home >> Kia >> 2017 >> Forte EX >> Repair and Diagnosis >> External Pages >> Different car >> Section 268 (HEV Control System Diagnosis) >> DTC U0164: Lost Communication With HVAC Control Module >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

WARNING: This page is about a different car, the 2017 Kia Niro. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
DTC Strategy
  • CAN signal check
  • Poor connection
  • CAN communication
  • A/C control module
Enable Conditions
  • Ignition "ON"
  • Auxiliary battery voltage is between 9V and 16V
  • HCU Ready "ON"
Threshold Value
  • No signal via CAN for 0.5s or receiving error value
DTC Erasing
  • Failure to achieve the threshold value
DTC Confirmation
  • 2 driving cycles
Service Lamp
  • Set
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