Home >> Land Rover >> 2014 >> Range Rover Base >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Telematics Control Module (TCU) -- Range Rover/L405 >> Diagnostic Trouble Code Index DTC: Telematics Control Module (TCU) >> Description And Operation >> DTC B1252-13: USB Port - Circuit open >> Possible Causes