LEMON Manuals: Even more car manuals for everyone
Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 93 (Battery Management System Diagnosis (HEV)) >> DTC P1B03: Auxiliary Battery Temperature Sensor Circuit >> 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
  • Due to Auxiliary Battery Temperature Sensor open/short, Prevent to take wrong temperature value
  • Due to incorrect information of Auxiliary Battery Temperature Sensor, Prevent to take a control error
  1. Auxiliary Battery
  2. Wire Harness between Auxiliary Battery Temperature Sensor
  3. Auxiliary Battery Temperature Sensor faults
  4. Auxiliary Battery Temperature Sensor wiring open/short
  5. Auxiliary Battery Temperature Sensor wiring short to ground
  6. BMS ECU
Detecting Method
  • Detect if the Auxiliary Battery Temperature Sensor error lasts 5 seconds.
Enable Condition
  • Ignition ON, Voltage is between 9V and 16V
Threshold Value
  • Auxiliary Battery Temperature Sensor input < -45°C (-49°F) or Auxiliary Battery Temperature Sensor input >110°C (230°F)
DTC Release Condition
  • Auxiliary Battery Temperature Sensor input ≥ -45°C (-49°F) and Auxiliary Battery Temperature Sensor input ≤ 110°C (230°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