Home >> Land Rover >> 2017 >> Discovery Sport SE >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Restraints Control Module (RCM) -- Discovery Sport/L550 >> Diagnostic Trouble Code Index DTC: Restraints Control Module (RCM) >> Description And Operation >> DTC B0020-1A: Left Side Airbag Deployment Control - Circuit resistance below threshold >> Possible Causes