Home >> Jaguar >> 2017 >> XJR Base >> Repair and Diagnosis (Single Page) >> 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