Home >> Jaguar >> 2013 >> XJ Base, AWD >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code (DTC) Index DTC: Transmission Control Switch (TCS) -- XJ/X351 >> Diagnostic Trouble Code (DTC) Index DTC: Transmission Control Switch (TCS) >> Description And Operation >> Transmission Control Switch (TCS) >> B123C-01 Dynamic Stability Control Status Indicator - General electrical failure >> Possible Causes