Home >> Land Rover >> 2020 >> Discovery Sport Base >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: Gateway Module (GWM) - Discovery Sport/L550 >> Diagnostic Trouble Code Index: Gateway Module (GWM) (G2398306) >> Description And Operation >> DTC B1412-87: Quiescent Relay Box - Missing message >> Possible Causes