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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 120 (Air Conditioning System Diagnosis (HEV)) >> DTC B1246: Air Mix Potentiometer Short (High) Driver >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Voltage check
  1. Short to battery in signal circuit (Feedback Signal)
  2. Faulty Driver temperature Actuator
  3. Air Conditioner Control Module
Enable Conditions
  • Ignition ON
Threshold Value
  • Driver Air mix actuator (Temperature Actuator) sensor signal is at or over 4.9V for 0.3 seconds
Fail-Safe
  • If the Driver set temperature is below 24°C (76.1°F) right before fail detection, Actuator is operated and fixed to Cool Position.
  • Actuator is operated and fixed to Warm Position if set temperature is over 25°C (77°F)
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