Home >> Jaguar >> 2014 >> XK Base, 2D Convertible >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Adaptive Damping Control Module (SUMB) -- XK/X150 >> Diagnostic Trouble Code Index DTC: Adaptive Damping Control Module (SUMB) >> Description And Operation >> Adaptive Damping Module [SUMB] >> DTC U0401-68: Invalid Data Received from ECM/PCM A - Event information >> Possible Causes