Home >> Jaguar >> 2015 >> XK 2D Convertible >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Diagnostic Trouble Code Index DTC: Transmission Shift Module (GSM) -- XK/X150 >> Diagnostic Trouble Code Index DTC: Transmission Shift Module (GSM) >> Description And Operation >> Gear Shift Module [GSM] >> DTC B1244-64: Dynamic/Sport Button - Signal plausibility failure >> Possible Causes