Home › Jaguar › 2018 › F-Pace Base › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Transfer Case Control Module (TCCM) (F-Pace) › Diagnostic Trouble Code Index DTC: Transfer Case Control Module (TCCM) › Description And Operation › Transfer Case Control Module (TCCM) › DTC P1889-18: Oil Pressure Pump Performance - Circuit current below threshold › Possible Causes