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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 B1242: Evaporator Sensor Open (High) >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Voltage check
  1. Open in signal circuit
  2. Short to battery in signal circuit
  3. Faulty Evaporator sensor
  4. Faulty Air Conditioner control Unit
Enable Conditions
  • Ignition ON
Threshold Value
  • Evaporator sensor signal is at or over 4.9V for 0.3 seconds
Fail-Safe
  • Control with the value of -2°C (28.4°F)
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