Home › Land Rover › 2013 › LR2 Base › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Central Junction Box (CJB) -- LR2/L359 › Diagnostic Trouble Code Index DTC: Central Junction Box (CJB) › Description And Operation › DTC C1D21-05: Wheel Module - System programming failures › Possible Causes