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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 136 (Air Conditioning System Diagnosis) >> DTC B1234-13: In-Car Temp Sensor Open (High) >> DTC Information And Inspection >> DTC Setting Condition

DTC Setting Condition

WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
Trouble shooting Condition Possible Cause
Main action
  • Monitor the voltage
  1. Poor contact of wire harness
  2. Open in signal circuit, short in power circuit
  3. Faulty In-Car Temperature Sensor
  4. Faulty A/C Control Module
Prerequisite Condition
  • Turn the ignition switch ON
Threshold value
  • Voltage of the In-Car Temperature Sensor is higher than 4.9V for over 0.3 sec
Fail safe
  • Temperature will be fixed at 25°C
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