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Home >> Hyundai >> 2021 >> Tucson Ultimate, 4WD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System Diagnosis (2 Of 2) >> DTC B2502-00: Passenger Airbag Telltale Lamp Failure >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Check voltage
  1. Burnt-out fuse.
  2. Burnt-out Telltale lamp.
  3. Open circuit in Telltale lamp harness.
  4. Short circuit in Telltale lamp harness.
  5. Check SRSCM
Enable Conditions
  • Ignition "ON"
Threshold Value
  • When Telltale lamp illumination voltage is greater than 1.9v
  • When Telltale lamp no illumination voltage is less than 1.9v
Diagnostic Time Qualification
  • More than 1 sec
De-Qualification
  • More than 2 sec
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