Home › Jaguar › 2014 › XF Base › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Tire Pressure Monitoring System Control Module (TPMSCM) -- XF/X250 › Diagnostic Trouble Code (DTC) Index DTC: Tire Pressure Monitoring System Control Module (TPMSCM) › Description And Operation › DTC C1A56-91: Left Front Tire Pressure Sensor and Transmitter Assembly - Parametric › Possible Causes