Home › Jaguar › 2017 › XF S, RWD › Repair and Diagnosis › Steering › Steering Control Systems › Diagnostic Trouble Code Index DTC: Power Steering Control Module (PSCM) -- XF/X260 › Diagnostic Trouble Code Index DTC: Power Steering Control Module (PSCM) › Description And Operation › Power Steering Control Module (PSCM) › DTC U0300-56: Internal Control Module Software Incompatibility - Invalid/incomplete configuration › Possible Causes