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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 93 (Battery Management System Diagnosis (HEV)) >> DTC P0AAD: Hybrid Battery Pack Air Temperature Sensor 'A' Circuit Range/Performance >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

WARNING: This page is about a different variant/trim than selected.
Item Detecting Condition Possible Cause
DTC Strategy
  • To prevent incorrect temperature information due to open or short in Ambient Temperature Sensor
  • To prevent incorrect control due to incorrect ambient temperature information
  1. Faulty Hybrid battery pack
  2. Poor connection or open in harness or connector between battery module and BMS
  3. Faulty Hybrid Battery Air Temperature Sensor 'A'
  4. Open in Hybrid Battery Air Temperature Sensor 'A' circuit
  5. Power short in Hybrid Battery Air Temperature Sensor 'A' circuit
  6. Ground short in Hybrid Battery Air Temperature Sensor 'A'
  7. Faulty BMS ECU
Detecting Method
  • The temperature difference among 5 temperature sensors (Max temperature or Min temperature) is over 30°C (86°F) for more than 30min.
  • Air Temperature Sensor and 5 temperature sensors is in normal
Enable Condition
  • Ignition ON Auxiliary battery volts between 9V and 16V
  • Not detected for DTCs: P0A9D, P0A9E, P0AC7, P0AC8, P0ACC, P0ACD, P0AEA, P0AEB, P0BC4, P0BC5
Threshold Value
  • The temperature difference among 5 temperature sensors (Max temperature or Min temperature) is over 30°C (86°F)
DTC Release Condition
  • The temperature difference among 5 temperature sensors (Max temperature or Min temperature) is under 5°C (41°F)
Service Lamp ON Condition
  • In case of 2 time DC (Driving cycle: ST ON ~ IG OFF 2 time)
Service Lamp "OFF" Condition
  • In case of satisfying release condition
Safety Mode
  • Normal High voltage: Main relay ON
  • BMS available POWER: Power Directing